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Silva AM, Campa F, Sardinha LB. The usefulness of total body protein mass models for adolescent athletes. Front Nutr 2024; 11:1439208. [PMID: 39040929 PMCID: PMC11262245 DOI: 10.3389/fnut.2024.1439208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Accepted: 06/24/2024] [Indexed: 07/24/2024] Open
Abstract
The present study aimed to assess the utility of a less laborious technique for estimating total body protein (TBPro) in young athletes, using a multicomponent model as the criterion method. A total of 88 (49 boys and 39 girls) adolescent athletes (age: 15.2 ± 1.5 years; body mass index: 21.2 ± 2.7 kg/m2) participated. A 6-compartment model was used as the reference method (TBProReference) involving air displacement plethysmography for body volume, dual-energy X-ray absorptiometry (DXA) for bone mineral content, and deuterium dilution for total body water (TBW). Alternatively, DXA TBPro models were used as TBPro = lean-soft mass (LSM) - HFFFM × fat-free mass (FFM) - Ms. - G, where LSM and FFM were assessed using DXA, HFFFM is the hydration fraction of the FFM using measured TBW or assumed TBW (adult fraction of 0.732; Lohman's constants or mean observed HFFFM), Ms. is soft tissue minerals (Ms = 0.0129 × HFFFM × FFM), and G is glycogen calculated as 0.044 × (LSM - HFFFM × FFM - Ms). The maturation level was determined by self-assessment. TBPro obtained from DXA using the assumed HFFFM explained 73% to 77% of the variance compared to TBProReference. Meanwhile, using the mean values of measured HFFFM, the DXA model explained 53 and 36% for boys and girls, respectively. Larger bias (8.6% for boys and 25.8% for girls) and limits of agreement were found for the DXA model using measured HFFFM (boys for 66.9% and girls for 70%) compared to an assumed HFFFM (bias ranged from 1.5% to 22.5% and limits of agreement ranged from 31.3% to 35.3%). Less complex and demanding TBPro DXA models with the assumed HFFFM are valid alternatives for assessing this relevant FFM component in groups of adolescent athletes but are less accurate for individual results. Though future studies should be conducted to test the usefulness of these models in longitudinal and experimental designs, their potential to provide an estimation of protein mass after exercise and diet interventions in young athletes is anticipated.
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Affiliation(s)
- Analiza M. Silva
- Exercise and Health Laboratory, CIPER, Faculdade Motricidade Humana, Universidade de Lisboa, Lisbon, Portugal
| | - Francesco Campa
- Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - Luís B. Sardinha
- Exercise and Health Laboratory, CIPER, Faculdade Motricidade Humana, Universidade de Lisboa, Lisbon, Portugal
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Lara-Pompa NE, Macdonald S, Fawbert K, Shaw V, Wells JC, Fewtrell M, Hill S. Measuring body composition in pediatric patients with complex diagnoses: Acceptability, practicality, and validation of different techniques. Nutr Clin Pract 2024; 39:673-684. [PMID: 38142311 DOI: 10.1002/ncp.11098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 10/17/2023] [Accepted: 11/05/2023] [Indexed: 12/25/2023] Open
Abstract
BACKGROUND Body composition could help identify malnutrition in pediatric patients, but there is uncertainty over which techniques are most suitable and prevailing opinion that measurements are difficult to obtain in practice. This study examined the acceptability, practicality, reliability, and validity of different anthropometric and body composition measurements in patients with complex diagnoses in a tertiary pediatric hospital. METHODS A total of 152 children aged 5-18 years had weight, height, body mass index (BMI), mid-upper arm circumference (MUAC), 4-site skinfold thicknesses (SFT), bioelectrical impedance analysis (BIA), and dual-energy x-ray absorptiometry (DXA) assessed on admission and discharge. Acceptability was assessed in a continuous scale, practicality with number/percentage of successful measurements, reliability with intraclass correlation coefficients and coefficients of repeatability, and validity between "simpler" techniques and DXA with Bland-Altman analysis of agreement and Cohen kappa. RESULTS Techniques were overall acceptable. Measurements were successful in >50%, with patient refusal uncommon. Coefficients of repeatability were good (0.3 cm MUAC and height, 0.2 kg weight, and 1.0 mm SFTs). All techniques significantly overestimated DXA fat mass, but BMI and triceps SFT better identified abnormal fat mass (κ = 0.46 and 0.49). BIA fat-free mass was not significantly different from DXA, with substantial agreement between techniques (κ = 0.65). CONCLUSION Body composition by a range of techniques is acceptable, practical, and reliable in a diverse group of children with complex diagnoses. BIA seems a good alternative to DXA for assessing fat-free mass, triceps SFT, and BMI for fat mass but should be used with care as it could overestimate total fat mass in individuals.
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Affiliation(s)
- Nara E Lara-Pompa
- Childhood Nutrition Research Centre, UCL Great Ormond St Institute of Child Health, London, UK
- Clinical Nutrition, Hospital Infantil Teletón de Oncología, Santiago de Querétaro, México
| | - Sarah Macdonald
- Gastroenterology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Katherine Fawbert
- Gastroenterology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Vanessa Shaw
- Gastroenterology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Jonathan C Wells
- Childhood Nutrition Research Centre, UCL Great Ormond St Institute of Child Health, London, UK
| | - Mary Fewtrell
- Childhood Nutrition Research Centre, UCL Great Ormond St Institute of Child Health, London, UK
| | - Susan Hill
- Gastroenterology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
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Nasreddine L, Bakir MA, Al-Ati T, Alzaben AS, Barham R, Bawazeer N, Fares EJ, Hammad K, Kaestel P, Reilly JJ, Taktouk M. Nutrition and Health in Arab Adolescents (NaHAR): Study protocol for the determination of ethnic-specific body fat and anthropometric cut-offs to identify metabolic syndrome. PLoS One 2024; 19:e0298306. [PMID: 38394061 PMCID: PMC10889849 DOI: 10.1371/journal.pone.0298306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
The prevalence of adolescent obesity in the Middle-East is considered among the highest in the world. Obesity in adolescents is associated with several cardiometabolic abnormalities, the constellation of which is referred to as the metabolic syndrome (MetS). This multi-country cross-sectional study aims to determine the optimal cut-off values for body fat (BF); body mass index (BMI) z-score; waist circumference (WC) percentile, and mid-upper arm circumference (MUAC) for the prediction of MetS among adolescents from Kingdom of Saudi-Arabia (KSA), Kuwait, Jordan, Lebanon and Syria. A secondary objective is to examine the validity of Bioelectrical Impendence Vector Analysis (BIVA) in estimating BF against the deuterium dilution technique (DDL). In each country, a sample of 210 adolescents will be recruited. Data collection will include demographics, socioeconomic, lifestyle and dietary data using a multi-component questionnaire; anthropometric measurements will be obtained and body composition will be assessed using the DDL and BIVA; blood pressure and biochemical assessment will be performed for the identification of the MetS. Receiver operating characteristic analyses will be undertaken to determine optimal cut-off values of BMI, WC, MUAC and BF in identifying those with MetS. Odds ratios (OR) and their respective 95% confidence interval (CI) for the association of the anthropometric measurements with MetS will be computed based on multiple logistic regression analysis models. The Bland and Altman approach will be adopted to compare BIVA against the reference DDL method for the determination of body composition parameters. This study responds to the need for ethnic-specific anthropometric cut-offs for the identification of excess adiposity and associated cardiometabolic risks in the adolescent population. The adoption of the generated cut-offs may assist policy makers, public health professionals and clinical practitioners in providing ethnic-specific preventive and curative strategies tailored to adolescents in the region.
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Affiliation(s)
- Lara Nasreddine
- Department of Nutrition and Food Sciences, American University of Beirut, Beirut, Lebanon
| | - Mohamad Adel Bakir
- Department of Radiation Medicine, Atomic Energy Commission, Damascus, Syrian Arab Republic
| | - Tareq Al-Ati
- Food and Nutrition Program, Environment and Life Sciences Research Institute Center, Kuwait Institute for Scientific Research, Safat, Kuwait
| | - Abeer Salman Alzaben
- Department of Health Sciences, College of Health and Rehabilitation Sciences, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Rawhieh Barham
- Department of Nutrition, Ministry of Health, Amman, Jordan
| | - Nahla Bawazeer
- Department of Health Sciences, College of Health and Rehabilitation Sciences, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Elie-Jacques Fares
- Department of Nutrition and Food Sciences, American University of Beirut, Beirut, Lebanon
| | - Kholoud Hammad
- Department of Radiation Medicine, Atomic Energy Commission, Damascus, Syrian Arab Republic
| | - Pernille Kaestel
- Department of Nuclear Sciences and Applications, Division of Human Health, International Atomic Energy Agency, Vienna, Austria
| | - John J. Reilly
- Physical Activity for Health Group, School of Psychological Sciences and Health, University of Strathclyde, Glasgow, Scotland
| | - Mandy Taktouk
- Department of Nutrition and Food Sciences, American University of Beirut, Beirut, Lebanon
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Nashandi HL, Monyeki MA, Reilly JJ. Validation of mid-arm circumference for surveillance of obesity in African adolescent girls and adult women. Br J Nutr 2023; 130:1437-1443. [PMID: 36890660 PMCID: PMC10511682 DOI: 10.1017/s0007114523000387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/18/2023] [Accepted: 02/01/2023] [Indexed: 03/10/2023]
Abstract
This study aimed to assess the validity of mid-arm circumference (MAC), also known as mid-upper arm circumference (MUAC), for classification of high body fatness in Namibian adolescent girls and women and to test whether classification accuracy of MUAC was higher than the traditional simple proxy for high fatness, the BMI. In 206 adolescent girls aged 13-19 years and 207 adult women aged 20-40 years, we defined obesity conventionally (BMI-for-age Z score ≥ 2·00, adolescents; adults BMI ≥ 30·0 kg/m2) and also defined obesity using published MAC cut-off values. 2H oxide dilution was used to measure total body water (TBW) to define high body fat percentage (≥ 30 % in the adolescents, ≥ 38 % in the adults), and we compared the ability of BMI and MAC to classify high body fatness correctly using sensitivity, specificity and predictive values. In the adolescents, obesity prevalence was 9·2 % (19/206) using BMI-for-age and 63·2 % (131/206) using TBW; sensitivity of BMI-for-age was 14·5 % (95 % CI 9·1, 22·0 %) but was improved significantly using MAC of 22·6 cm (sensitivity 96·9 %; 95 % CI 92·1 %, 99·3 %). In the adults, obesity prevalence was 30·4 % (63/207) using BMI and 57·0 % (118/207) using TBW, and sensitivity of BMI was 52·5 % (95 % CI 43·6, 62·2 %), but using a MAC of 30·6 cm sensitivity was 72·8 % (95 % CI 66·4, 82·6 %). Surveillance of obesity in African adolescent girls and adult women is likely to be improved substantially by use of MAC as an alternative to the BMI-for-age and BMI.
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Affiliation(s)
- Hilde L. Nashandi
- Physical Activity, Sport and Recreation Research Focus Area, Faculty of Health Sciences, North-West University, Potchefstroom2520, South Africa
- School of Nursing and Public Health, Faculty of Health Sciences and Veterinary Medicines, University of Namibia, Windhoek, Namibia
| | - Makama A. Monyeki
- Physical Activity, Sport and Recreation Research Focus Area, Faculty of Health Sciences, North-West University, Potchefstroom2520, South Africa
| | - John J. Reilly
- JJ Reilly, School of Psychological Sciences and Health, University of Strathclyde, Glasgow, Scotland
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Mahaffey R, Brown N, Cramp M, Morrison SC, Drechsler WI. Evaluation of bioelectrical impedance analysis in measuring body fat in 6-to-12-year-old boys compared with air displacement plethysmography. Br J Nutr 2023; 130:1098-1104. [PMID: 36562205 DOI: 10.1017/s0007114522004019] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Air displacement plethysmography (ADP) has been considered as the 'standard' method to determine body fat in children due to superior validity and reliability compared with bioelectrical impedance analysis (BIA). However, ADP and BIA are often used interchangeably despite few studies comparing measures of percentage body fat by ADP (%FMADP) with BIA (%FMBIA) in children with and without obesity. The objective of this study was to measure concurrent validity and reliability of %FMADP and %FMBIA in 6-to-12-year-old boys with and without obesity. Seventy-one boys (twenty-five with obesity) underwent body composition assessment. Ten boys participated in intra-day reliability analysis. %FMADP was estimated by Bodpod using sex- and age-specific equations of body density. %FMBIA was estimated by a multi-frequency, hand-to-foot device using child-specific equations based on impedance. Validity was assessed by t tests, correlation coefficients and limits of agreement (LoA); and reliability by technical error of measurement (TEM) and intraclass correlation coefficients (ICC). Compared with %FMADP, %FMBIA was significantly underestimated in the cohort (-3·4 ± 5·6 %; effect size = 0·42) and in both boys with obesity (-5·2 ± 5·5 %; ES = 0·90) and without obesity (-2·4 ± 5·5 %; ES = 0·52). A strong, significant positive correlation was found between %FMADP and %FMBIA (r = 0·80). Across the cohort, LoA were 22·3 %, and no proportional bias was detected. For reliability, TEM were 0·65 % and 0·55 %, and ICC were 0·93 and 0·95 for %FMBIA and %FMADP, respectively. Whilst both %FMADP and %FMBIA are highly reliable methods, considerable differences indicated that the devices cannot be used interchangeably in boys age 6-to-12 years.
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Affiliation(s)
- Ryan Mahaffey
- School of Sport, Health and Applied Sciences, St Mary's University, Twickenham, UK
| | - Nicola Brown
- School of Sport, Health and Applied Sciences, St Mary's University, Twickenham, UK
| | - Mary Cramp
- Department of Allied Health Professions, University of the West of EnglandBristol, UK
| | - Stewart C Morrison
- School of Life Course and Population Sciences, King's College London, UK
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Bijlsma A, van Beijsterveldt IALP, Vermeulen MJ, Beunders VAA, Dorrepaal DJ, Boeters SCM, van den Akker ELT, Vlug LE, de Koning BAE, Bracké KFM, Dieleman GC, Scheffers LE, Hagenaar DA, Affourtit P, Bindels-de Heus KGCB, Hokken-Koelega ACS, Joosten KFM. Challenges in body composition assessment using air-displacement plethysmography by BOD POD in pediatric and young adult patients. Clin Nutr 2023; 42:1588-1594. [PMID: 37478812 DOI: 10.1016/j.clnu.2023.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/06/2023] [Accepted: 07/08/2023] [Indexed: 07/23/2023]
Abstract
BACKGROUND & AIMS Air-Displacement-Plethysmography (ADP) by BOD POD is widely used for body fat assessment in children. Although validated in healthy subjects, studies about use in pediatric patients are lacking. We evaluated user experience and usability of ADP measurements with the BOD POD system in healthy children and pediatric and young adult patients. METHODS Using the experiences of seven cohort studies, which included healthy children and patients aged 2-22 years, we retrospectively evaluated the user experience with the User Experience Questionnaire (UEQ) (n = 13) and interviews (n = 7). Technical performance was studied using the quality control data collected by the ADP-system. RESULTS From 2016 to 2022, 1606 measurements were scheduled. BOD POD was mostly rated 'user-friendly', with a generally neutral evaluation on all scales of the UEQ. However, questionable reliability and validity of the results were frequently (86%) reported. We found a high technical failure-rate of the device, predominantly in stability (17%) and accuracy of the measurement (12%), especially in the 'pediatric option' for children aged <6 years. Measurement failure-rate was 38%, mostly due to subject's fear or device failure, especially in young and lean children, and in children with physical and/or intellectual disabilities. CONCLUSION We conclude that ADP by BOD POD in children and young adults is non-invasive and user-friendly. However, in specific pediatric populations, BOD POD has several limitations and high (technical) failure-rates, especially in young children with aberrant body composition. We recommend caution when interpreting body composition results of pediatric patients as assessed with BOD POD using the current default settings.
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Affiliation(s)
- Alja Bijlsma
- Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Inge A L P van Beijsterveldt
- Department of Pediatrics, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands; Dutch Growth Research Foundation, Rotterdam, the Netherlands
| | - Marijn J Vermeulen
- Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Victoria A A Beunders
- Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Demi J Dorrepaal
- Department of Pediatrics, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Sanne C M Boeters
- Obesity Center CGG, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands; Dept. of Dietetics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Erica L T van den Akker
- Obesity Center CGG, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands; Department of Pediatrics, Division of Endocrinology, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Lotte E Vlug
- Department of Pediatrics, Division of Gastroenterology, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Barbara A E de Koning
- Department of Pediatrics, Division of Gastroenterology, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Katrien F M Bracké
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands; Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, the Netherlands
| | - Gwen C Dieleman
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Linda E Scheffers
- Department of Pediatrics, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Doesjka A Hagenaar
- Department of Pediatrics, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands; Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands; ENCORE Expertise Centre for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, the Netherlands
| | - Philine Affourtit
- Dept. of Dietetics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Karen G C B Bindels-de Heus
- Department of Pediatrics, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands; ENCORE Expertise Centre for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, the Netherlands
| | - Anita C S Hokken-Koelega
- Department of Pediatrics, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands; Dutch Growth Research Foundation, Rotterdam, the Netherlands
| | - Koen F M Joosten
- Department of Neonatal and Pediatric Intensive Care, Division of Pediatric Intensive Care, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands.
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Yanchis D, So S, Patterson C, Belza C, Garofalo E, Wong-Sterling S, Silva C, Avitzur Y, Wales PW, Hulst JM, Kong D, Xuyx L, Courtney-Martin G. Assessment of body composition in pediatric intestinal failure: A comparison study. JPEN J Parenter Enteral Nutr 2023; 47:920-929. [PMID: 37355855 DOI: 10.1002/jpen.2540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 06/12/2023] [Accepted: 06/21/2023] [Indexed: 06/26/2023]
Abstract
BACKGROUND The objective of the study was to compare bioelectrical impedance analysis (BIA) and skinfolds with dual energy x-ray absorptiometry (DXA) in the assessment of body composition of children with intestinal failure. DXA is the reference method for body composition assessment in clinical settings. METHODS Children aged 1-18 years with intestinal failure whohave DXA as part of routine clinical monitoring were eligible. BIA measured total body water on the same day as DXA. Skinfold measurements were taken at four sites: triceps, biceps, subscapular, and suprailiac. Percentage of fat mass (%FM) and fat-free mass (%FFM) were derived from resistance and reactance measured by BIA by using age-specific equations. Percentage of FM was calculated from skinfold measures by using age-specific equations. Data on patient characteristics, intestinal failure-related factors, and feeding method were collected. Paired t test examined differences in %FM and %FFM and Bland-Altman analysis determined the agreement between BIA, skinfolds, and DXA. Marginal linear model assessed the effect of age, sex, and feeding method on the difference in body composition obtained between DXA and BIA and between DXA and skinfolds. RESULTS Sixty-eight children with intestinal failure, mean age 8.9 ± 4.2 years, were studied. There was no difference between %FFM and %FM obtained by DXA and BIA (P = 0.26), with a mean bias (95% CI) of -0.69 (-1.9 to 0.5) for %FFM. Sex and age were individually and jointly associated with the bias observed between DXA and BIA (P < 0.05). Skinfold and DXA measurements were significantly different (P < 0.05). CONCLUSIONS BIA is an acceptable clinical tool for assessing body composition in pediatric intestinal failure.
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Affiliation(s)
- Dianna Yanchis
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Group for Improvement of Intestinal Function and Treatment (GIFT), The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Stephanie So
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Group for Improvement of Intestinal Function and Treatment (GIFT), The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Physical Therapy, University of Toronto, Toronto, Ontario, Canada
| | - Catherine Patterson
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Group for Improvement of Intestinal Function and Treatment (GIFT), The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Physical Therapy, University of Toronto, Toronto, Ontario, Canada
| | - Christina Belza
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Group for Improvement of Intestinal Function and Treatment (GIFT), The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Elizabeth Garofalo
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Group for Improvement of Intestinal Function and Treatment (GIFT), The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Sylvia Wong-Sterling
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Group for Improvement of Intestinal Function and Treatment (GIFT), The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Carina Silva
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Group for Improvement of Intestinal Function and Treatment (GIFT), The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Yaron Avitzur
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Group for Improvement of Intestinal Function and Treatment (GIFT), The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Paul W Wales
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jessie M Hulst
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Group for Improvement of Intestinal Function and Treatment (GIFT), The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Dehan Kong
- Department of Statistical Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Libai Xuyx
- Department of Statistical Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Glenda Courtney-Martin
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- Group for Improvement of Intestinal Function and Treatment (GIFT), The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
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van Beijsterveldt IALP, Dorrepaal DJ, de Fluiter KS, de Ridder MAJ, Hokken-Koelega ACS. Skinfold-based-equations to assess longitudinal body composition in children from birth to age 5 years. Clin Nutr 2023; 42:1213-1218. [PMID: 37225558 DOI: 10.1016/j.clnu.2023.04.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 04/05/2023] [Accepted: 04/26/2023] [Indexed: 05/26/2023]
Abstract
BACKGROUND & AIMS In order to identify children at risk for excess adiposity, it is important to determine body composition longitudinally throughout childhood. However, most frequently used techniques in research are expensive and time-consuming and, therefore, not feasible for use in general clinical practice. Skinfold measurements can be used as proxy for adiposity, but current anthropometry-based-equations have random and systematic errors, especially when used longitudinally in pre-pubertal children. We developed and validated skinfold-based-equations to estimate total fat mass (FM) longitudinally in children aged 0-5 years. METHODS This study was embedded in the Sophia Pluto study, a prospective birth cohort. In 998 healthy term-born children, we longitudinally measured anthropometrics, including skinfolds and determined FM using Air Displacement Plethysmography (ADP) by PEA POD and Dual energy X-ray Absorptiometry (DXA) from birth to age 5 years. Of each child one random measurement was used in the determination cohort, others for validation. Linear regression was used to determine the best fitting FM-prediction model based on anthropometric measurements using ADP and DXA as reference methods. For validation, we used calibration plots to determine predictive value and agreement between measured and predicted FM. RESULTS Three skinfold-based-equations were developed for adjoined age ranges (0-6 months, 6-24 months and 2-5 years), based on FM-trajectories. Validation of these prediction equations showed significant correlations between measured and predicted FM (R: 0.921, 0.779 and 0.893, respectively) and good agreement with small mean prediction errors of 1, 24 and -96 g, respectively. CONCLUSIONS We developed and validated reliable skinfold-based-equations which may be used longitudinally from birth to age 5 years in general practice and large epidemiological studies.
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Affiliation(s)
- Inge A L P van Beijsterveldt
- Department of Pediatrics, Erasmus University Medical Center, Sophia Children's Hospital, Rotterdam, the Netherlands; Dutch Growth Research Foundation, Rotterdam, the Netherlands.
| | - Demi J Dorrepaal
- Department of Pediatrics, Erasmus University Medical Center, Sophia Children's Hospital, Rotterdam, the Netherlands
| | | | - Maria A J de Ridder
- Department of Medical Informatics, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Anita C S Hokken-Koelega
- Department of Pediatrics, Erasmus University Medical Center, Sophia Children's Hospital, Rotterdam, the Netherlands; Dutch Growth Research Foundation, Rotterdam, the Netherlands
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Bandyopadhyay S, Puttaswamy D, Gabriel MP, J J, Finkelstein JL, Selvam S, Kurpad AV, Kuriyan R. Estimation of Hydration and Density of Fat-Free Mass in Indian Children Using a 4-Compartment Model: Implications for the Estimation of Body Composition Using 2-Compartment Models. J Nutr 2023; 153:435-442. [PMID: 36894236 DOI: 10.1016/j.tjnut.2022.12.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 12/20/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Accurate methods are needed to measure body fat mass (FM), particularly in South Asian children who are thought to have greater adiposity for a given body size. The accuracy of simple 2-compartment (2C) models of measuring FM depends on the primary measurement of the fat free mass (FFM) and the validity of assumed constants for FFM hydration and density. These have not been measured in this particular ethnic group. OBJECTIVES To measure FFM hydration and density in South Indian children using a 4-compartment (4C) model and to compare FM estimates from this 4C-model with 2C-model-based estimates from hydrometry and densitometry, using literature-reported FFM hydration and density in children. METHODS This study included 299 children (45% boys), aged 6-16 y from Bengaluru, India. Total body water (TBW), bone mineral content (BMC), and body volume were measured using deuterium dilution, dual-energy X-ray absorptiometry, and air displacement plethysmography, respectively, to calculate the FFM hydration and density, and the FM using 4C and 2C models. The agreement between FM estimates from 2C and 4C models was also evaluated. RESULTS Mean FFM hydration and density were 74.2% ± 2.1% and 71.4% ± 2.0% and 1.095 ± 0.008 kg/L and 1.105 ± 0.008 kg/L in boys and girls respectively, which were significantly different from published values. Using the presently estimated constants, the mean hydrometry-based FM (as % body weight) estimates decreased by 3.5% but increased by 5.2% for densitometry-based 2C methods. When 2C-FM (using previously reported FFM hydration and density) were compared with 4C-FM estimates, the mean difference was -1.1 ± 0.9 kg for hydrometry and 1.6 ± 1.1 kg for densitometry. CONCLUSIONS Previously published constants of hydration and density of FFM may induce errors of -12% to +17% in FM (kg) when using different 2C models in comparison to the 4C models in Indian children. J Nutr 20xx;x:xx.
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Affiliation(s)
- Sulagna Bandyopadhyay
- Division of Nutrition, St. John's Research Institute, St. John's National Academy of Health Sciences, Bengaluru, Karnataka, India
| | - Deepa Puttaswamy
- Division of Nutrition, St. John's Research Institute, St. John's National Academy of Health Sciences, Bengaluru, Karnataka, India
| | - Mamatha Philip Gabriel
- Division of Nutrition, St. John's Research Institute, St. John's National Academy of Health Sciences, Bengaluru, Karnataka, India
| | - Jayakumar J
- Division of Nutrition, St. John's Research Institute, St. John's National Academy of Health Sciences, Bengaluru, Karnataka, India
| | - Julia L Finkelstein
- Division of Nutrition, St. John's Research Institute, St. John's National Academy of Health Sciences, Bengaluru, Karnataka, India; Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Sumithra Selvam
- Division of Epidemiology and Biostatistics, St. John's Research Institute, St. John's National Academy of Health Sciences, Bengaluru, Karnataka, India
| | - Anura V Kurpad
- Department of Physiology, St. John's Medical College, St. John's National Academy of Health Sciences, Bengaluru, Karnataka, India
| | - Rebecca Kuriyan
- Division of Nutrition, St. John's Research Institute, St. John's National Academy of Health Sciences, Bengaluru, Karnataka, India.
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10
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Hudda MT, Wells JCK, Adair LS, Alvero-Cruz JRA, Ashby-Thompson MN, Ballesteros-Vásquez MN, Barrera-Exposito J, Caballero B, Carnero EA, Cleghorn GJ, Davies PSW, Desmond M, Devakumar D, Gallagher D, Guerrero-Alcocer EV, Haschke F, Horlick M, Ben Jemaa H, Khan AI, Mankai A, Monyeki MA, Nashandi HL, Ortiz-Hernandez L, Plasqui G, Reichert FF, Robles-Sardin AE, Rush E, Shypailo RJ, Sobiecki JG, Ten Hoor GA, Valdés J, Wickramasinghe VP, Wong WW, Riley RD, Owen CG, Whincup PH, Nightingale CM. External validation of a prediction model for estimating fat mass in children and adolescents in 19 countries: individual participant data meta-analysis. BMJ 2022; 378:e071185. [PMID: 36130780 PMCID: PMC9490487 DOI: 10.1136/bmj-2022-071185] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To evaluate the performance of a UK based prediction model for estimating fat-free mass (and indirectly fat mass) in children and adolescents in non-UK settings. DESIGN Individual participant data meta-analysis. SETTING 19 countries. PARTICIPANTS 5693 children and adolescents (49.7% boys) aged 4 to 15 years with complete data on the predictors included in the UK based model (weight, height, age, sex, and ethnicity) and on the independently assessed outcome measure (fat-free mass determined by deuterium dilution assessment). MAIN OUTCOME MEASURES The outcome of the UK based prediction model was natural log transformed fat-free mass (lnFFM). Predictive performance statistics of R2, calibration slope, calibration-in-the-large, and root mean square error were assessed in each of the 19 countries and then pooled through random effects meta-analysis. Calibration plots were also derived for each country, including flexible calibration curves. RESULTS The model showed good predictive ability in non-UK populations of children and adolescents, providing R2 values of >75% in all countries and >90% in 11 of the 19 countries, and with good calibration (ie, agreement) of observed and predicted values. Root mean square error values (on fat-free mass scale) were <4 kg in 17 of the 19 settings. Pooled values (95% confidence intervals) of R2, calibration slope, and calibration-in-the-large were 88.7% (85.9% to 91.4%), 0.98 (0.97 to 1.00), and 0.01 (-0.02 to 0.04), respectively. Heterogeneity was evident in the R2 and calibration-in-the-large values across settings, but not in the calibration slope. Model performance did not vary markedly between boys and girls, age, ethnicity, and national income groups. To further improve the accuracy of the predictions, the model equation was recalibrated for the intercept in each setting so that country specific equations are available for future use. CONCLUSION The UK based prediction model, which is based on readily available measures, provides predictions of childhood fat-free mass, and hence fat mass, in a range of non-UK settings that explain a large proportion of the variability in observed fat-free mass, and exhibit good calibration performance, especially after recalibration of the intercept for each population. The model demonstrates good generalisability in both low-middle income and high income populations of healthy children and adolescents aged 4-15 years.
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Affiliation(s)
- Mohammed T Hudda
- Population Health Research Institute, St George's University of London, London, SW17 0RE, UK
| | - Jonathan C K Wells
- Population, Policy, and Practice Programme, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Linda S Adair
- Department of Nutrition, University of North Carolina Schools of Public Health and Medicine, NC, USA
| | | | - Maxine N Ashby-Thompson
- Department of Pediatrics, New York Nutrition Obesity Research Center, Columbia University Medical Center, New York, NY, USA
| | | | - Jesus Barrera-Exposito
- Biodynamic and Body Composition Laboratory, Faculty of Education Sciences, University of Málaga, Málaga, Spain
| | - Benjamin Caballero
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Elvis A Carnero
- Translational Research Institute, Adventhealth Orlando, Orlando, FL, USA
| | - Geoff J Cleghorn
- Child Health Research Centre, University of Queensland, Brisbane, Australia
| | - Peter S W Davies
- Child Health Research Centre, University of Queensland, Brisbane, Australia
| | - Malgorzata Desmond
- Population, Policy, and Practice Programme, UCL Great Ormond Street Institute of Child Health, London, UK
| | | | - Dympna Gallagher
- Department of Medicine and Institute Human Nutrition, Division of Endocrinology, New York Nutrition Obesity Research Center, Columbia University Medical Center, New York, NY, USA
| | - Elvia V Guerrero-Alcocer
- Centro Universitario UAEM Amecameca, Universidad Autónoma del Estado de México, Amecameca de Juárez, Mexico
| | | | - Mary Horlick
- Body Composition Unit, St Luke's-Roosevelt Hospital, New York, NY, USA
| | - Houda Ben Jemaa
- Nutrition Department, Higher School of Health Sciences and Techniques, University of Tunis El Manar, Tunis, Tunisia
| | - Ashraful I Khan
- International Centre for Diarrheal Disease Research, Dhaka 1212, Bangladesh
| | - Amani Mankai
- Nutrition Department, Higher School of Health Sciences and Techniques, University of Tunis El Manar, Tunis, Tunisia
| | - Makama A Monyeki
- Physical Activity, Sport, and Recreation Research Focus Area (PhASRec), Faculty of Health Sciences, North-West University, Potchefstroom, South Africa
| | - Hilde L Nashandi
- School of Nursing and Public Health, Faculty of Health Sciences and Veterinary Medicine, University of Namibia, Windhoek, Namibia
| | - Luis Ortiz-Hernandez
- Departamento de Atención a la Salud, Universidad Autónoma Metropolitana Xochimilco, Mexico City, Mexico
| | - Guy Plasqui
- Department of Nutrition and Movement Sciences, NUTRIM, Maastricht University, Maastricht, Netherlands
| | - Felipe F Reichert
- Postgraduate Program in Physical Education, Federal University of Pelotas, Pelotas, Brazil
| | - Alma E Robles-Sardin
- Coordinación de Nutrición, Centro de Investigación en Alimentación y Desarrollo, Hermosillo, Mexico
| | - Elaine Rush
- Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand
| | - Roman J Shypailo
- Baylor College of Medicine, USDA/ARS Children's Nutrition Research Center, Houston, TX, USA
| | - Jakub G Sobiecki
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge, UK
| | - Gill A Ten Hoor
- Department of Work and Social Psychology, Maastricht University, Maastricht, Netherlands
| | - Jesús Valdés
- Departamento de Bioquímica, Centro de Investigación y de Estudios Avanzados del IPN, Mexico City, Mexico
| | | | - William W Wong
- Baylor College of Medicine, USDA/ARS Children's Nutrition Research Center, Houston, TX, USA
| | - Richard D Riley
- Centre for Prognosis Research, School of Medicine, Keele University, Keele, UK
| | - Christopher G Owen
- Population Health Research Institute, St George's University of London, London, SW17 0RE, UK
| | - Peter H Whincup
- Population Health Research Institute, St George's University of London, London, SW17 0RE, UK
| | - Claire M Nightingale
- Population Health Research Institute, St George's University of London, London, SW17 0RE, UK
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11
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Anthropometry, body composition and chronic disease risk factors among Zambian school-aged children who experienced severe malnutrition in early childhood. Br J Nutr 2022; 128:453-460. [PMID: 34486967 PMCID: PMC9340851 DOI: 10.1017/s0007114521003457] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
There is limited information as to whether people who experience severe acute malnutrition (SAM) as young children are at increased risk of overweight, high body fat and associated chronic diseases in later life. We followed up, when aged 7-12 years, 100 Zambian children who were hospitalised for SAM before age 2 years and eighty-five neighbourhood controls who had never experienced SAM. We conducted detailed anthropometry, body composition assessment by bioelectrical impedance and deuterium dilution (D2O) and measured blood lipids, Hb and HbA1c. Groups were compared by linear regression following multiple imputation for missing variables. Children with prior SAM were slightly smaller than controls, but differences, controlling for age, sex, socio-economic status and HIV exposure or infection, were significant only for hip circumference, suprailiac skinfold and fat-free mass index by D2O. Blood lipids and HbA1c did not differ between groups, but Hb was lower by 7·8 (95 % CI 0·8, 14·7) g/l and systolic blood pressure was 3·4 (95 % CI 0·4, 6·4) mmHg higher among the prior SAM group. Both anaemia and high HbA1c were common among both groups, indicating a population at risk for the double burden of over- and undernutrition and associated infectious and chronic diseases. The prior SAM children may have been at slightly greater risk than the controls; this was of little clinical significance at this young age, but the children should be followed when older and chronic diseases manifest.
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12
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Filteau S, Kasonka L, Wells JCK, Munthali G, Chisenga M, Rehman AM. Anthropometry, body composition, early growth and chronic disease risk factors among Zambian adolescents exposed or not to perinatal maternal HIV. Br J Nutr 2022; 129:1-12. [PMID: 35695182 PMCID: PMC9899567 DOI: 10.1017/s0007114522001775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/13/2022] [Accepted: 05/30/2022] [Indexed: 11/07/2022]
Abstract
Early life exposures and growth patterns may affect long-term risk of chronic non-communicable diseases (NCD). We followed up in adolescence two Zambian cohorts (n 322) recruited in infancy to investigate how two early exposures - maternal HIV exposure without HIV infection (HEU) and early growth profile - were associated with later anthropometry, body composition, blood lipids, Hb and HbA1c, blood pressure and grip strength. Although in analyses controlled for age and sex, HEU children were thinner, but not shorter, than HIV-unexposed, uninfected (HUU) children, with further control for socio-demographic factors, these differences were not significant. HEU children had higher HDL-cholesterol than HUU children and marginally lower HbA1c but no other biochemical or clinical differences. We identified three early growth profiles - adequate growth, declining and malnourished - which tracked into adolescence when differences in anthropometry and body fat were still seen. In adolescence, the early malnourished group, compared with the adequate group, had lower blood TAG and higher HDL, lower grip strength (difference: -1·87 kg, 95 % CI -3·47, -0·27; P = 0·02) and higher HbA1c (difference: 0·5 %, 95 % CI 0·2, 0·9; P = 0·005). Lower grip strength and higher HbA1c suggest the early malnourished children could be at increased risk of NCD in later life. Including early growth profile in analyses of HIV exposure reduced the associations between HIV and outcomes. The results suggest that perinatal HIV exposure may have no long-term effects unless accompanied by poor early growth. Reducing the risk of young child malnutrition may lessen children's risk of later NCD.
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Affiliation(s)
- Suzanne Filteau
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, LondonWC1E7HT, UK
| | - Lackson Kasonka
- University Teaching Hospital – Women and Newborn, Lusaka, Zambia
| | | | - Grace Munthali
- National Institute for Scientific and Industrial Research, Lusaka, Zambia
| | - Molly Chisenga
- University Teaching Hospital – Women and Newborn, Lusaka, Zambia
| | - Andrea Mary Rehman
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, LondonWC1E7HT, UK
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13
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Kyrana E, Williams JE, Wells JC, Dhawan A. Sarcopenia and Fat Mass in Children With Chronic Liver Disease and Its Impact on Liver Transplantation. JPGN REPORTS 2022; 3:e200. [PMID: 37168917 PMCID: PMC10158330 DOI: 10.1097/pg9.0000000000000200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 01/14/2022] [Indexed: 05/13/2023]
Abstract
In adults, weight loss and sarcopenia are prognostic indicators of poor outcomes for patients awaiting liver transplant (LT). We tested the hypothesis that sarcopenia in children awaiting LT was related to poor outcomes. Methods Children with end-stage chronic liver disease undergoing assessment for LT were recruited into an observational longitudinal study. Anthropometry and body composition (BC; whole-body dual-energy x-ray absorptiometry scan) were assessed before and, on average, 1 year after LT. Results Eleven children (6 females:5 males) were assessed (4.7 to 17.2 years; median, 9.9) at baseline. Nine children went on to have an LT. The aspartate aminotransferase-to-platelet ratio index had a significant positive correlation with trunk lean mass and trunk lean mass index (LMI) SD score (SDS). At baseline, 4 patients were sarcopenic with appendicular LMI SDS less than -1.96. All fat mass and fat mass index (FMI) SDSs were within the normal range (above -1.96). There was a strong negative correlation between FMI SDS and height SDS. After transplant, there was a significant reduction in trunk LMI from 1.20 to -0.51 (95% CI, 1.03-2.4; P < 0.01). Body mass index SDS had a negative correlation with days to discharge after transplant. The majority of patients discharged after 16 days were sarcopenic. One year after transplantation, all patients were alive with normal graft function regardless of BC before LT. Conclusion FMIs were normal regardless of LMIs and correlated negatively with height. BC was related to days to discharge after LT but not to outcomes a year after LT.
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Affiliation(s)
- Eirini Kyrana
- From the King’s College Hospital NHS Foundation Trust and MowatLabs, London, United Kingdom
| | - Jane E. Williams
- MRC Childhood Nutrition Research Centre, Institute of Child Health, London, United Kingdom
| | - Jonathan C. Wells
- MRC Childhood Nutrition Research Centre, Institute of Child Health, London, United Kingdom
| | - Anil Dhawan
- From the King’s College Hospital NHS Foundation Trust and MowatLabs, London, United Kingdom
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14
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Orsso CE, Gonzalez MC, Maisch MJ, Haqq AM, Prado CM. Using bioelectrical impedance analysis in children and adolescents: Pressing issues. Eur J Clin Nutr 2022; 76:659-665. [PMID: 34620999 DOI: 10.1038/s41430-021-01018-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/06/2021] [Accepted: 09/21/2021] [Indexed: 11/08/2022]
Abstract
Single- and multifrequency bioelectrical impedance analysis (BIA) has gained popularity as a tool to assess body composition and health status of children and adolescents, but many questions and misconceptions remain. This review addresses pressing issues researchers and health care providers may encounter when using BIA in the young population. The importance of choosing population-specific and device-specific equations to estimate body composition as well as the use of BIA in longitudinal analyses are discussed. When specific equations are not available, raw bioimpedance values (i.e., resistance, reactance, and impedance) can be used to compute bioimpedance parameters, such as phase angle, impedance ratio, and bioelectrical impedance vector analysis. As interpreting these parameters is challenging, suggestions are provided on the use of reference data, cut-off points, and adjustment factors. Furthermore, unsolved technical and analytical issues are listed. Based on existing issues and potential for future development, a greater interaction between industry and academic researchers to improve the validity of BIA measurements among children and adolescents across their developmental stages is encouraged.
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Affiliation(s)
- Camila E Orsso
- Human Nutrition Research Unit, Department of Agricultural, Food and Nutritional Science, University of Alberta, 4-002 Li Ka Shing Centre for Health Innovation, Edmonton, AB, T6G 2E1, Canada.
| | - Maria Cristina Gonzalez
- Postgraduate Program in Health and Behavior, Catholic University of Pelotas, R. Gonçalves Chaves 377, Pelotas, RS, 96010280, Brazil
- Pennington Biomedical Research Center, LSU System, 6400 Perkins Road, Baton Rouge, LA, 70808, USA
| | | | - Andrea M Haqq
- Department of Pediatrics & Department of Agricultural, Food and Nutritional Science, University of Alberta, 1C4 Walter C. Mackenzie Health Sciences Center, Edmonton, AB, T6G 2B7, Canada
| | - Carla M Prado
- Human Nutrition Research Unit, Department of Agricultural, Food and Nutritional Science, University of Alberta, 4-002 Li Ka Shing Centre for Health Innovation, Edmonton, AB, T6G 2E1, Canada
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15
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Divala OH, Mwakhwawa Q, Phiri MM, Owino V, El Kari K, Maleta KM. Development of bioelectrical impedance-based equations for the prediction of body composition of Malawian adolescents aged 10-18 years: a cross-sectional study. BMJ Open 2022; 12:e058551. [PMID: 35379640 PMCID: PMC8981360 DOI: 10.1136/bmjopen-2021-058551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVES The accuracy of bioelectrical impedance analysis (BIA) depends on population-specific prediction equations and there is no population-specific equation for predicting fat-free mass (FFM) in Malawian adolescents. This study aimed at determining the agreement between FFM measured by deuterium oxide dilution technique (the reference) and FFM by BIA; and propose BIA-based prediction equations to estimate FFM for Malawian adolescents. DESIGN This was a cross-sectional study. SETTING The study was conducted in Blantyre, Malawi PARTICIPANTS: 186 Malawian adolescents aged between 10 and 18 years were included in this study. Body composition was estimated by both the BodyStat BIA analyser and the deuterium oxide dilution method. RESULTS BIA inbuilt equation underestimated FFM compared with deuterium oxide dilution (p=0.039). The new prediction equation for FFM (kg)=-4.316+ 0.425* height2(cm)/resistance (Ω)+1.287* sex (male=1, female=0)+0.307*age(years)+0.344* weight(kg)+0.019*reactance(Ω) yielded an R2 of 0.926. The equation for total body water (TBW) (kg)=-2.152 + 0.328*height2(cm)/resistance (Ω) 0.910*sex (male=1, female=0)+0.307 *age (years)+0.249*weight(kg)+0.015*reactance(Ω) yielded an R2 of 0.922. The Bland-Altman plot illustrated a good level of concordance between the FFM and TBW predicted by the new equations and the values derived using deuterium dilution method. CONCLUSIONS The new BIA prediction equations for estimating FFM and TBW could be used to assess with very good accuracy and precision the body composition of Malawian and adolescents with similar characteristics.
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Affiliation(s)
- Oscar Henry Divala
- Department of Public Health, School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Queen Mwakhwawa
- Department of Public Health, School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Madalitso Makawa Phiri
- Department of Public Health, School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Victor Owino
- Nutritional and Health Related Environmental Studies Section, Division of Human Health, International Atomic Energy Agency, Vienna, Austria
| | - Khalid El Kari
- Nutrition and Food Unit, DSV, DERS, National Center for Energy Sciences and Nuclear Techniques, Rabat, Morocco
| | - Kenneth Mphatso Maleta
- Department of Public Health, School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
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van Beijsterveldt IALP, Beunders VAA, Bijlsma A, Vermeulen MJ, Joosten KFM, Hokken-Koelega ACS. Body Composition Assessment by Air-Displacement Plethysmography Compared to Dual-Energy X-ray Absorptiometry in Full-Term and Preterm Aged Three to Five Years. J Clin Med 2022; 11:1604. [PMID: 35329930 PMCID: PMC8952802 DOI: 10.3390/jcm11061604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 02/28/2022] [Accepted: 03/07/2022] [Indexed: 11/17/2022] Open
Abstract
It is important to monitor body composition longitudinally, especially in children with atypical body composition trajectories. Dual-energy X-ray absorptiometry (DXA) can be used and reference values are available. Air-displacement plethysmography (ADP) is a relatively new technique, but reference values are lacking. In addition, estimates of fat-free mass density (Dffm), needed in ADP calculations, are based on children aged >8 years and may not be valid for younger children. We, therefore, aimed to investigate whether DXA and ADP results were comparable in young children aged 3−5 years, either born full-term or preterm, and if Dffm estimates in the ADP algorithm could be improved. In 154 healthy children born full-term and 67 born < 30 weeks of the inverse pressure-volume gestation, aged 3−5 years, body composition was measured using ADP (BODPOD, with default Lohman Dffm estimates) and DXA (Lunar Prodigy). We compared fat mass (FM), fat mass percentage (FM%) and fat-free mass (FFM), between ADP and DXA using Bland−Altman analyses, in both groups. Using a 3-compartment model as reference method, we revised the Dffm estimates for ADP. In full-term-born children, Bland−Altman analyses showed considerable fixed and proportional bias for FM, FM%, and FFM. After revising the Dffm estimates, agreement between ADP and DXA improved, with mean differences (LoA) for FM, FM%, and FFM of −0.67 kg (−2.38; 1.04), −3.54% (−13.44; 6.36), and 0.5 kg (−1.30; 2.30), respectively, but a small fixed and proportional bias remained. The differences between ADP and DXA were larger in preterm-born children, even after revising Dffm estimates. So, despite revised and improved sex and age-specific Dffm estimates, results of ADP and DXA remained not comparable and should not be used interchangeably in the longitudinal assessment of body composition in children aged 3−5 years, and especially not in very preterm-born children of that age.
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Affiliation(s)
- Inge A. L. P. van Beijsterveldt
- Department of Pediatrics, Subdivision of Endocrinology, Erasmus Medical Center-Sophia Children’s Hospital, 3015 CN Rotterdam, The Netherlands;
| | - Victoria A. A. Beunders
- Department of Pediatrics, Division of Neonatology, Erasmus Medical Center-Sophia Children’s Hospital, 3015 CN Rotterdam, The Netherlands; (V.A.A.B.); (A.B.); (M.J.V.)
| | - Alja Bijlsma
- Department of Pediatrics, Division of Neonatology, Erasmus Medical Center-Sophia Children’s Hospital, 3015 CN Rotterdam, The Netherlands; (V.A.A.B.); (A.B.); (M.J.V.)
| | - Marijn J. Vermeulen
- Department of Pediatrics, Division of Neonatology, Erasmus Medical Center-Sophia Children’s Hospital, 3015 CN Rotterdam, The Netherlands; (V.A.A.B.); (A.B.); (M.J.V.)
| | - Koen F. M. Joosten
- Department of Pediatric Intensive Care, Sophia Erasmus Medical Center-Sophia Children’s Hospital, 3015 CN Rotterdam, The Netherlands;
| | - Anita C. S. Hokken-Koelega
- Department of Pediatrics, Subdivision of Endocrinology, Erasmus Medical Center-Sophia Children’s Hospital, 3015 CN Rotterdam, The Netherlands;
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Body Composition Assessment in Mexican Children and Adolescents. Part 2: Cross-Validation of Three Bio-Electrical Impedance Methods against Dual X-ray Absorptiometry for Total-Body and Regional Body Composition. Nutrients 2022; 14:nu14050965. [PMID: 35267947 PMCID: PMC8912617 DOI: 10.3390/nu14050965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/18/2022] [Accepted: 02/18/2022] [Indexed: 02/01/2023] Open
Abstract
The aim of our study was to validate three different bioelectrical impedance analysis (BIA) methods for estimating body composition (BC). First, we generated BIA prediction equations based on the 4-C model as the reference method for fat mass (FM) and fat-free mass (FFM), and on dual X-ray absorptiometry (DXA) estimations of appendicular lean mass (ALM) and truncal fat mass (tFM). Then, we performed cross-validation in an independent BMI-, sex-, and Tanner-stratified sample of 450 children/adolescents. The three BIA methods showed good correlation and concordance with DXA BC estimations. However, agreement analyses showed significant biases, with increasing subestimations of FM and tFM, and overestimations of ALM, by all three BIA methods. In conclusion, the three BIA methods analysed in this study, provide valid estimations of BC for total body and body segments, in children and adolescents who are of a healthy weight, overweight, or obese. It should be noted that this validation cannot be extrapolated to other BIA methods.
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Piqueras P, Ballester A, Durá-Gil JV, Martinez-Hervas S, Redón J, Real JT. Anthropometric Indicators as a Tool for Diagnosis of Obesity and Other Health Risk Factors: A Literature Review. Front Psychol 2021; 12:631179. [PMID: 34305707 PMCID: PMC8299753 DOI: 10.3389/fpsyg.2021.631179] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 06/07/2021] [Indexed: 12/18/2022] Open
Abstract
Obesity is characterized by the accumulation of an excessive amount of fat mass (FM) in the adipose tissue, subcutaneous, or inside certain organs. The risk does not lie so much in the amount of fat accumulated as in its distribution. Abdominal obesity (central or visceral) is an important risk factor for cardiovascular diseases, diabetes, and cancer, having an important role in the so-called metabolic syndrome. Therefore, it is necessary to prevent, detect, and appropriately treat obesity. The diagnosis is based on anthropometric indices that have been associated with adiposity and its distribution. Indices themselves, or a combination of some of them, conform to a big picture with different values to establish risk. Anthropometric indices can be used for risk identification, intervention, or impact evaluation on nutritional status or health; therefore, they will be called anthropometric health indicators (AHIs). We have found 17 AHIs that can be obtained or estimated from 3D human shapes, being a noninvasive alternative compared to X-ray-based systems, and more accessible than high-cost equipment. A literature review has been conducted to analyze the following information for each indicator: definition; main calculation or obtaining methods used; health aspects associated with the indicator (among others, obesity, metabolic syndrome, or diabetes); criteria to classify the population by means of percentiles or cutoff points, and based on variables such as sex, age, ethnicity, or geographic area, and limitations.
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Affiliation(s)
- Paola Piqueras
- Instituto de Biomecánica de Valencia, Universitat Politècnica de Valencia, Valencia, Spain
| | - Alfredo Ballester
- Instituto de Biomecánica de Valencia, Universitat Politècnica de Valencia, Valencia, Spain
| | - Juan V. Durá-Gil
- Instituto de Biomecánica de Valencia, Universitat Politècnica de Valencia, Valencia, Spain
| | - Sergio Martinez-Hervas
- Service of Endocrinology and Nutrition, Hospital Clínico Universitario de Valencia, Valencia, Spain
- Institute of Health Research of the Hospital Clinico Universitario de Valencia (INCLIVA), Valencia, Spain
- Department of Medicine, University of Valencia, Valencia, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain
| | - Josep Redón
- Department of Internal Medicine, Hospital Clínico de Valencia, University of Valencia, Valencia, Spain
- CIBER Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Madrid, Spain
- Cardiovascular and Renal Risk Research Group, Institute of Health Research of the Hospital Clinico Universitario de Valencia (INCLIVA), University of Valencia, Valencia, Spain
| | - José T. Real
- Service of Endocrinology and Nutrition, Hospital Clínico Universitario de Valencia, Valencia, Spain
- Institute of Health Research of the Hospital Clinico Universitario de Valencia (INCLIVA), Valencia, Spain
- Department of Medicine, University of Valencia, Valencia, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain
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Costa RFD, Masset KVDSB, Silva AM, Cabral BGDAT, Dantas PMS. Development and cross-validation of predictive equations for fat-free mass and lean soft tissue mass by bioelectrical impedance in Brazilian women. Eur J Clin Nutr 2021; 76:288-296. [PMID: 34230624 DOI: 10.1038/s41430-021-00946-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 05/07/2021] [Accepted: 05/17/2021] [Indexed: 11/09/2022]
Abstract
BACKGROUND/OBJECTIVES Bioelectrical impedance is one of the most used clinical techniques to assess body composition; however, it is necessary that the available predictive equations are valid for the evaluated subjects. This study aimed to develop and cross-validate equations for fat-free mass (FFM) and lean soft tissue mass (LSTM) by bioelectrical impedance for Brazilian women, in addition to test the validity of other available equations. SUBJECTS/METHODS Cross-sectional study with 222 women aged 20-59 years, randomly divided into two groups: development and cross-validation. The standard technique for assessing fat mass, FFM and LSTM was dual energy X-ray absorptiometry. Paired t test, multiple regression, and Bland-Altman plots were used to test the validity of the proposed models, as well as to perform cross-validation of the models. RESULTS The equations derived in this study were: FFM = 16.284 + 0.442 × (Height2/Resistance) - 0.13 × age + 0.302 × Weight - 0.121 × Waist Circumference; r2 = 0.86; SEE = 2.32 kg; and LSTM = 14.732 + 0.427 × (Height2/Resistance) - 0.125 × age + 0.291 × Weight - 0.115 × Waist Circumference; r2 = 0.92; SEE = 2.29 kg. In addition, the new equation for FFM showed better agreement when compared to another equation developed for a Brazilian population. CONCLUSIONS The newly developed equations provide a valid FFM and LSTM estimation and are recommended for Brazilian women with similar characteristics.
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Affiliation(s)
- Roberto Fernandes da Costa
- Physical Education Department, Health Sciences Centre, Universidade Federal do Rio Grande do Norte, Natal, Brazil.
| | | | - Analiza M Silva
- Exercise and Health Laboratory, CIPER, Faculdade Motricidade Humana, Universidade de Lisboa, Lisbon, Portugal
| | | | - Paulo Moreira Silva Dantas
- Physical Education Department, Health Sciences Centre, Universidade Federal do Rio Grande do Norte, Natal, Brazil
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Watson LPE, Carr KS, Orford ER, Venables MC. The Importance of Hydration in Body Composition Assessment in Children Aged 6-16 Years. J Clin Densitom 2021; 24:481-489. [PMID: 33454177 PMCID: PMC8354559 DOI: 10.1016/j.jocd.2020.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/08/2020] [Accepted: 12/10/2020] [Indexed: 01/02/2023]
Abstract
Body composition is associated with many noncommunicable diseases. The accuracy of many simple techniques used for the assessment of body composition is influenced by the fact that they do not take into account tissue hydration and this can be particularly problematic in paediatric populations. The aims of this study were: (1) to assess the agreement of two dual energy X-ray absorptiometry (DXA) systems for determining total and regional (arms, legs, trunk) fat, lean, and bone mass and (2) to compare lean soft tissue (LST) hydration correction methods in children. One hundred and twenty four healthy children aged between 6 and 16 years old underwent DXA scans using 2 GE healthcare Lunar systems (iDXA and Prodigy). Tissue hydration was either calculated by dividing total body water (TBW), by 4-component model derived fat free mass (HFFMTBW) or by using the age and sex specific coefficients of Lohman, 1986 (HFFMLohman) and used to correct LST. Regression analysis was performed to develop cross-calibration equations between DXA systems and a paired samples t-test was conducted to assess the difference between LST hydration correction methods. iDXA resulted in significantly lower estimates of total and regional fat and lean mass, compared to Prodigy. HFFMTBW showed a much larger age/sex related variability than HFFMLohman. A 2.0 % difference in LST was observed in the boys (34.5 kg vs 33.8 kg respectively, p < 0.05) and a 2.5% difference in the girls (28.2 kg vs 27.5 kg respectively, p < 0.05) when corrected using either HFFMTBW or HFFMLohman. Care needs to be exercised when combining data from iDXA and Prodigy, as total and regional estimates of body composition can differ significantly. Furthermore, tissue hydration should be taken into account when assessing body composition as it can vary considerably within a healthy paediatric population even within specific age and/or sex groups.
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Affiliation(s)
- Laura P E Watson
- National Institute Health Research Cambridge Clinical Research Facility, Addenbrooke's Hospital, Cambridge, United Kingdom.
| | - Katherine S Carr
- National Institute Health Research Cambridge Clinical Research Facility, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - Elise R Orford
- Stable Isotope Laboratory, National Institute for Health Research Cambridge Biomedical Research Centre Nutritional Biomarker Laboratory, MRC Epidemiology Unit and Wellcome-MRC Institute of Metabolic Science, Metabolic Research Laboratories, University of Cambridge, Cambridge, United Kingdom
| | - Michelle C Venables
- Stable Isotope Laboratory, National Institute for Health Research Cambridge Biomedical Research Centre Nutritional Biomarker Laboratory, MRC Epidemiology Unit and Wellcome-MRC Institute of Metabolic Science, Metabolic Research Laboratories, University of Cambridge, Cambridge, United Kingdom
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Bongiovanni T, Rossi A, Iaia FM, DI Baldassarre A, Pasta G, Manetti P, Alberti G, Trecroci A. Relationship of regional and whole body morphology to vertical jump in elite soccer players: a data-driven approach. J Sports Med Phys Fitness 2021; 62:1162-1169. [PMID: 34080815 DOI: 10.23736/s0022-4707.21.12323-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND This study aimed to analyse the relationship of regional and whole body morphology to vertical jump performance and to compare the morphological features outlining high and low performers in professional soccer players. METHODS Twenty-one male soccer players were recruited. Whole and regional (upper and lower limbs) features were obtained in the form of body dimensional measurements. Then, all players were tested for vertical jump performance. A data-driven approach was used to group players according to their jump performance parameters (high vs low). RESULTS The regional morphological features presented higher correlations with vertical jump than whole body features. High and low performers were significantly different among upperand lower-limb morphology. No differences were observed among whole body features. CONCLUSIONS These findings indicate that, rather than the whole body, the use of morphological features linked to specific body regions may ensure a better interpretation of the soccer players' physical potential in jump performance.
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Affiliation(s)
- Tindaro Bongiovanni
- Department of Health, Performance and Recovery, Parma Calcio 1913, Parma, Italy.,Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milano, Italy
| | - Alessio Rossi
- Department of Computer Science, University of Pisa, Pisa, Italy -
| | - F Marcello Iaia
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milano, Italy
| | - Angela DI Baldassarre
- Department of Medicine and Aging Sciences, University G. D'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Giulio Pasta
- Medical Department, Parma Calcio 1913, Parma, Italy
| | | | - Giampietro Alberti
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milano, Italy
| | - Athos Trecroci
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milano, Italy
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New bioelectrical impedance analysis equations for children and adolescents based on the deuterium dilution technique. Clin Nutr ESPEN 2021; 44:402-409. [PMID: 34330497 DOI: 10.1016/j.clnesp.2021.05.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/23/2021] [Accepted: 05/03/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND AND AIMS Body composition in childhood is not only a marker of the prevalence of obesity, but it can also be used to assess associated metabolic complications. Bioelectrical impedance analysis (BIA) shows promise as an easy to use, rapid, and non-invasive tool to evaluate body composition. The objectives of this study were to: (a) develop BIA prediction equations to estimate total body water (TBW) and fat-free mass (FFM) in European children and early adolescents and to validate the analysis with the deuterium dilution as the reference technique and (b) compare our results with previously published paediatric BIA equations. METHODS The cohort included 266 healthy children and adolescents between 7 and 14 years of age, 46% girls, in five European countries: Bosnia and Herzegovina, Latvia, Montenegro, North Macedonia, and Portugal. TBW and FFM were the target variables in the developed regression models. For model development, the dataset was randomly split into training and test sets, in 70:30 ratio, respectively. Model tuning was performed with 10-fold cross-validation that confirmed the unbiased estimate of its performance. The final regression models were retrained on the whole dataset. RESULTS Cross-validated regression models were developed using resistance index, weight, and sex as the optimal predictors. The new prediction equations explained 87% variability in both TBW and FFM. Limits of agreement between BIA and reference values, were within ±17% of the mean, (-3.4, 3.7) and (-4.5, 4.8) kg for TBW and FFM, respectively. BIA FFM and TBW estimates were within one standard deviation for approximately 83% of the children. BIA prediction equations underestimated TBW and FFM by 0.2 kg and 0.1 kg respectively with no proportional bias and comparable accuracy among different BMI-for-age subgroups. Comparison with predictive equations from published studies revealed varying discrepancy rates with the deuterium dilution measurements, with only two being equivalent to the equations developed in this study. CONCLUSIONS The small difference between deuterium dilution and BIA measurements validated by Bland-Altman analysis, supports the application of BIA for epidemiological studies in European children using the developed equations.
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Validation of bioelectrical impedance analysis for body composition assessment in children with obesity aged 8-14y. Clin Nutr 2021; 40:4132-4139. [PMID: 33610417 DOI: 10.1016/j.clnu.2021.02.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/01/2021] [Accepted: 02/01/2021] [Indexed: 01/23/2023]
Abstract
BACKGROUND & AIMS The aim was to generate a predictive equation to assess body composition (BC) in children with obesity using bioimpedance (BIA), and avoid bias produced by different density levels of fat free mass (FFM) in this population. METHODS This was a cross-sectional validation study using baseline data from a randomized intervention trial to treat childhood obesity. Participants were 8 to 14y (n = 315), underwent assessments on anthropometry and BC through Air Displacement Plethysmography (ADP), Dual X-Ray Absorptiometry and BIA. They were divided into a training (n = 249) and a testing subset (n = 66). In addition, the testing subset underwent a total body water assessment using deuterium dilution, and thus obtained results for the 4-compartment model (4C). A new equation to estimate FFM was created from the BIA outputs by comparison to a validated model of ADP adjusted by FFM density in the training subset. The equation was validated against 4C in the testing subset. As reference, the outputs from the BIA device were also compared to 4C. RESULTS The predictive equation reduced the bias from the BIA outputs from 14.1% (95%CI: 12.7, 15.4) to 4.6% (95%CI: 3.8, 5.4) for FFM and from 18.4% (95%CI: 16.9, 19.9) to 6.4% (95% CI: 5.3, 7.4) for FM. Bland-Altman plots revealed that the new equation significantly improved the agreement with 4C; furthermore, the observed trend to increase the degree of bias with increasing FM and FFM also disappeared. CONCLUSION The new predictive equation increases the precision of BC assessment using BIA in children with obesity.
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Jeong H, Ntolkeras G, Alhilani M, Atefi SR, Zöllei L, Fujimoto K, Pourvaziri A, Lev MH, Grant PE, Bonmassar G. Development, validation, and pilot MRI safety study of a high-resolution, open source, whole body pediatric numerical simulation model. PLoS One 2021; 16:e0241682. [PMID: 33439896 PMCID: PMC7806143 DOI: 10.1371/journal.pone.0241682] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 10/19/2020] [Indexed: 11/30/2022] Open
Abstract
Numerical body models of children are used for designing medical devices, including but not limited to optical imaging, ultrasound, CT, EEG/MEG, and MRI. These models are used in many clinical and neuroscience research applications, such as radiation safety dosimetric studies and source localization. Although several such adult models have been reported, there are few reports of full-body pediatric models, and those described have several limitations. Some, for example, are either morphed from older children or do not have detailed segmentations. Here, we introduce a 29-month-old male whole-body native numerical model, "MARTIN", that includes 28 head and 86 body tissue compartments, segmented directly from the high spatial resolution MRI and CT images. An advanced auto-segmentation tool was used for the deep-brain structures, whereas 3D Slicer was used to segment the non-brain structures and to refine the segmentation for all of the tissue compartments. Our MARTIN model was developed and validated using three separate approaches, through an iterative process, as follows. First, the calculated volumes, weights, and dimensions of selected structures were adjusted and confirmed to be within 6% of the literature values for the 2-3-year-old age-range. Second, all structural segmentations were adjusted and confirmed by two experienced, sub-specialty certified neuro-radiologists, also through an interactive process. Third, an additional validation was performed with a Bloch simulator to create synthetic MR image from our MARTIN model and compare the image contrast of the resulting synthetic image with that of the original MRI data; this resulted in a "structural resemblance" index of 0.97. Finally, we used our model to perform pilot MRI safety simulations of an Active Implantable Medical Device (AIMD) using a commercially available software platform (Sim4Life), incorporating the latest International Standards Organization guidelines. This model will be made available on the Athinoula A. Martinos Center for Biomedical Imaging website.
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Affiliation(s)
- Hongbae Jeong
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Georgios Ntolkeras
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
- Fetal-Neonatal Neuroimaging and Developmental Science Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Michel Alhilani
- Fetal-Neonatal Neuroimaging and Developmental Science Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States of America
- Department of Medicine, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Seyed Reza Atefi
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Lilla Zöllei
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Kyoko Fujimoto
- Center for Devices and Radiological Health, U. S. Food and Drug Administration, Silver Spring, MD, United States of America
| | - Ali Pourvaziri
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Michael H. Lev
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - P. Ellen Grant
- Fetal-Neonatal Neuroimaging and Developmental Science Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Giorgio Bonmassar
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
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Comparison of bioimpedance spectroscopy and dual energy X-ray absorptiometry for assessing body composition changes in obese children during weight loss. Eur J Clin Nutr 2020; 75:73-84. [PMID: 32917962 DOI: 10.1038/s41430-020-00738-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 08/04/2020] [Accepted: 08/24/2020] [Indexed: 11/08/2022]
Abstract
BACKGROUND Obesity and age influence the reliability of dual energy X-ray absorptiometry scanning (DEXA) and bioimpedance spectroscopy (BIS). Both are used in clinical settings, but have not been compared for measurements in obese children. We compared DEXA and BIS for evaluating body composition and inherent changes in obese children before and after a 10-month weight loss programme. METHODS DEXA and BIS were used to evaluate 130 patients at baseline and 75 at follow-up. We tested agreement between the two techniques using Bland-Altman plots and proportional bias using Passing-Bablok regressions. RESULTS The Bland-Altman plots showed wide agreement limits before and after weight loss and when monitoring longitudinal changes. At baseline, the Passing-Bablok regressions revealed a proportional bias for all body compartments. After significant weight loss no proportional bias was found for fat mass and percentage, although BIS systematically underestimated fat mass by 2.9 kg. Longitudinally, no proportional bias was found in the measured changes of absolute fat, fat-free mass and fat-free percentage between both methods, although BIS systematically underestimated fat and fat-free mass by 2.6 and 0.7 kg, respectively. CONCLUSION While BIS and DEXA are not interchangeable at baseline, the agreement between the two improved after significant weight loss. Proportional changes in fat mass, fat-free mass and fat-free percentage were similar for both techniques. BIS is a viable alternative to DEXA for future paediatric obesity studies measuring treatment effect at group levels, but is not superior to DEXA and cannot be used for monitoring individual changes due to wide limits of agreement.
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A novel approach to assess body composition in children with obesity from density of the fat-free mass. Clin Nutr 2020; 40:1102-1107. [PMID: 32741681 DOI: 10.1016/j.clnu.2020.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 07/07/2020] [Accepted: 07/09/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND & AIMS Assessment of Fat Mass (FM) and fat-free mass (FFM) using Air-displacement plethysmography (ADP) technique assumes constant density of FFM (DFFM) by age and sex. It has been recently shown that DFFM further varies according to body mass index (BMI), meaning that ADP body composition assessments of children with obesity could be biased if DFFM is assumed to be constant. The aim of this study was to validate the use of the calculations of DFFM (rather than constant density of the FFM) to improve accuracy of body composition assessment in children with obesity. METHODS cross-sectional validation study in 66 children with obesity (aged 8-14 years) where ADP assessments of body composition assuming constant density (FFMBODPOD and FMBODPOD) were compared to those where DFFM was adjusted in relation to BMI (FFMadjusted and FMadjusted), and both compared to the gold standard reference, the 4-component model (FFM4C and FM4C). RESULTS FFMBODPOD was overestimated by 1.50 kg (95%CI -0.68 kg, 3.63 kg) while FFMadjusted was 0.71 kg (-1.08 kg, 2.51 kg) (percentage differences compared to FFM4C were 4.9% (±2.9%) and 2.8% (±2.1%), respectively (p < 0.001)). Consistently, FM was underestimated by both methods, representing a mean difference between methods of 4.0% (±2.9%) and 6.8% (±3.8%), respectively, when compared to the reference method. The agreement and reliability of body composition assessments were improved when adjusted using calculations (adjusted models) rather than assuming constant DFFM. CONCLUSIONS The use of constant values for fat-free mass properties may increase bias when assessing body composition (FM and FFM) in children with obesity by two-component techniques such as ADP. Using adjusted corrections as proposed in the present work may reduce the bias by half.
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Vander Wyst KB, Olson ML, Keller CS, Soltero EG, Williams AN, Peña A, Ayers SL, Jager J, Shaibi GQ. Sex as a moderator of body composition following a randomized controlled lifestyle intervention among Latino youth with obesity. Pediatr Obes 2020; 15:e12620. [PMID: 32072749 PMCID: PMC9275591 DOI: 10.1111/ijpo.12620] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 01/05/2020] [Accepted: 01/10/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Body composition differences between males and females emerge during adolescence and continue throughout adulthood; however, whether sex moderates body composition changes in adolescents with obesity after an intervention is unknown. OBJECTIVE To examine sex as a moderator of changes in adiposity following lifestyle intervention. METHODS A total of 136 Latino youth with obesity (BMI% 98.2 ± 1.3) aged 14 to 16 years old were randomized to either a 12-week lifestyle intervention (27 males/40 females) or control (35 males/34 females) group. The intervention included nutrition education (1 h/wk) and moderate-to-vigorous physical activity (3 h/wk). Anthropometric data (body mass index [BMI], BMI%, waist circumference, total body fat, and fat-free mass) were obtained pre- and post-intervention. Sex differences were examined by general linear models with significance determined at P < .05 for the F-statistic. RESULTS Sex did not moderate changes in BMI (F1,115 = 0.01, P = .9), BMI% (F1,115 = 0.14, P = .7), or waist circumference (F1,117 = 1.1, P = .3). Sex significantly moderated changes in body fat percent (F1,117 = 5.3, P = .02), fat mass (F1,116 = 4.5, P = .04), and fat-free mass (F1,116 = 4.3, P = .04). Intervention males compared with females had greater relative reductions in fat percent (-4.1 ± 0.8% vs -1.2 ± 0.7%, P = .02) and fat mass (-5.0 ± 1.1 kg vs -1.5 ± 0.9 kg, P = .02) and gained more fat free mass (3.6 ± 0.9 kg vs 0.5 ± 0.8 kg, P = .02) when compared with same sex controls. CONCLUSION Males and females exhibited a differential response to lifestyle intervention for percent fat, fat mass, and fat-free mass indicating that sex-specific improvements in body composition favours males over females.
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Affiliation(s)
- Kiley B. Vander Wyst
- Center for Health Promotion and Disease Prevention, Arizona State University, Phoenix, Arizona
| | - Micah L. Olson
- Center for Health Promotion and Disease Prevention, Arizona State University, Phoenix, Arizona
- Division of Pediatric Endocrinology and Diabetes, Phoenix Children’s Hospital, Phoenix, Arizona
| | - Colleen S. Keller
- Center for Health Promotion and Disease Prevention, Arizona State University, Phoenix, Arizona
| | - Erica G. Soltero
- Center for Health Promotion and Disease Prevention, Arizona State University, Phoenix, Arizona
| | - Allison N. Williams
- Center for Health Promotion and Disease Prevention, Arizona State University, Phoenix, Arizona
| | - Armando Peña
- Center for Health Promotion and Disease Prevention, Arizona State University, Phoenix, Arizona
| | - Stephanie L. Ayers
- Southwest Interdisciplinary Research Center, Arizona State University, Phoenix, Arizona
| | - Justin Jager
- T. Denny Sanford School of Social and Family Dynamics, Arizona State University, Phoenix, Arizona
| | - Gabriel Q. Shaibi
- Center for Health Promotion and Disease Prevention, Arizona State University, Phoenix, Arizona
- Division of Pediatric Endocrinology and Diabetes, Phoenix Children’s Hospital, Phoenix, Arizona
- Southwest Interdisciplinary Research Center, Arizona State University, Phoenix, Arizona
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Gutiérrez-Marín D, Luque V, Ferré N, Fewtrell MS, Williams JE, Wells JCK. Associations of age and body mass index with hydration and density of fat-free mass from 4 to 22 years. Eur J Clin Nutr 2019; 73:1422-1430. [PMID: 31285552 DOI: 10.1038/s41430-019-0447-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 05/14/2019] [Accepted: 05/30/2019] [Indexed: 11/09/2022]
Abstract
BACKGROUND Most body composition techniques assume constant properties of fat free mass (FFM) (hydration and density) regardless of nutritional status, which may lead to biased values. AIM To evaluate the interactive associations of age and body mass index (BMI) with hydration and density of FFM. METHODS Data from subjects aged between 4 and 22 years old from several studies conducted in London, UK were assessed. Hydration (HFFM) and density (DFFM) of FFM obtained from the four-component model in 936 and 905 individuals, respectively, were assessed. BMI was converted in to z-scores, and categorised into five groups using z-score cut-offs (thin, normal weight, overweight, obese, and severely obese). Linear regression models for HFFM and DFFM were developed using age, sex, and BMI group as predictors. RESULTS Nearly 30% of the variability in HFFM was explained by models including age and BMI groups, showing increasing HFFM values in heavier BMI groups. On the other hand, ∼40% of variability in DFFM was explained by age, sex, and BMI groups, with DFFM values decreasing in association with higher BMI group. CONCLUSION Nutritional status should be considered when assessing body composition using two-component methods, and reference data for HFFM and DFFM is needed for higher BMI groups to avoid bias. Further research is needed to explain intra-individual variability in FFM properties.
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Affiliation(s)
- Desirée Gutiérrez-Marín
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, Reus, Spain
| | - Veronica Luque
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, Reus, Spain
| | - Natàlia Ferré
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, Reus, Spain
| | - Mary S Fewtrell
- Childhood Nutrition Research Centre, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Jane E Williams
- Childhood Nutrition Research Centre, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Jonathan C K Wells
- Childhood Nutrition Research Centre, UCL Great Ormond Street Institute of Child Health, London, UK.
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Resting Energy Expenditure of Children With End-stage Chronic Liver Disease Before and After Liver Transplantation. J Pediatr Gastroenterol Nutr 2019; 69:102-107. [PMID: 30908388 DOI: 10.1097/mpg.0000000000002344] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Our objective was to test the hypothesis that children with end-stage chronic liver disease (ESCLD) are hypermetabolic when compared to healthy children, and that this hypermetabolism persists for at least 6 months after liver transplant. METHODS Seventeen patients with end-stage chronic liver disease and 14 healthy controls had their resting energy expenditure measured (mREE) by indirect calorimetry. Weight, height, and body mass index were converted to standard deviation (SD) scores. Children older than 5 years had air displacement plethysmography and patients older than 5 years also had whole body dual-energy X-ray absorptiometry with characterization of fat mass (FM), fat-free mass (FFM), and bone-free fat free (lean) mass. RESULTS When compared to the prediction equation 44% of the patients and 50% of the healthy controls were hypermetabolic. The younger patients (0-5 years) had a lower mREE than the healthy controls but were significantly lighter and shorter than their healthy counterparts. mREE correlated strongly for all children with age, weight, height, and FFM. There was a strong negative correlation between age and mREE/kg in both patients (rs = -0.94, P < 0.01) and controls (rs = -0.91, P < 0.01). Almost 84% of the variance in mREE was explained by age (P < 0.001). There were no significant differences between resting energy expenditure (REE)/FFM between the 2 groups. mREE/kg before liver transplant correlated with mREE/kg after transplant (Pearson r = 0.83, P < 0.01). CONCLUSIONS REE mostly reflected the size of the child. The patients were not hypermetabolic when compared to the healthy children. The main determinant of REE/kg after transplant was REE/kg before transplant.
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Neelis E, Kouwenhoven S, Olieman J, Tabbers M, Jonkers C, Wells J, Fewtrell M, Wijnen R, Rings E, de Koning B, Hulst J. Body Composition Using Air Displacement Plethysmography in Children With Intestinal Failure Receiving Long-Term Home Parenteral Nutrition. JPEN J Parenter Enteral Nutr 2019; 44:318-326. [PMID: 30900272 DOI: 10.1002/jpen.1527] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 02/17/2019] [Indexed: 11/10/2022]
Abstract
BACKGROUND Children with intestinal failure (IF) are at risk of growth failure, but little information about body composition is available. Our aim was to assess body composition using air displacement plethysmography (ADP) and relate it to clinical and growth parameters. METHODS In this prospective descriptive observational 2-center cohort study, children aged 2-18 years receiving home parenteral nutrition (PN) for ≥6 months underwent ADP measurement. Fat mass index (FMI) and fat-free mass index (FFMI) standard deviation scores (SDSs) were calculated to normalize for small body size. RESULTS Twenty-one out of 22 children, median age 7.4 years, underwent successful ADP measurement after a median PN duration of 5.5 years. They were significantly lighter (median weight for age SDS -0.71, P = 0.004) and shorter (median height for age SDS -1.55, P < 0.001) than the normal population mean; 52% were growing below target height range. They had low FFMI (median SDS -1.53, P < 0.001) and high FMI (median SDS 0.80, P = 0.002). Weight for height and body mass index (BMI) were significantly associated with FFMI and BMI with FMI, but children with the same weight and height showed different body composition. In 13 patients with 1-year follow-up, growth and body composition did not change significantly. CONCLUSION Children with IF receiving long-term PN show lower FFM and higher FM than healthy children. Additionally, children with similar routine growth parameters showed different body composition. Further studies should evaluate the effect of a patient-tailored approach including physical activity and nutrition advice based on body composition.
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Affiliation(s)
- Esther Neelis
- Department of Pediatric Gastroenterology, Erasmus Medical Center - Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Stefanie Kouwenhoven
- Department of Pediatrics, Amsterdam UMC, Vrije Universiteit Amsterdam, Emma Children's Hospital, Amsterdam, the Netherlands
| | - Joanne Olieman
- Department of Pediatric Surgery, Erasmus Medical Center - Sophia Children's Hospital, Rotterdam, the Netherlands.,Department of Dietetics, Erasmus Medical Center - Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Merit Tabbers
- Department of Pediatric Gastroenterology, Amsterdam UMC, University of Amsterdam, Emma Children's Hospital, Amsterdam, the Netherlands
| | - Cora Jonkers
- Department of Dietetics, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Jonathan Wells
- UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Mary Fewtrell
- UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - René Wijnen
- Department of Pediatric Surgery, Erasmus Medical Center - Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Edmond Rings
- Department of Pediatric Gastroenterology, Erasmus Medical Center - Sophia Children's Hospital, Rotterdam, the Netherlands.,Department of Pediatric Gastroenterology, Leiden University Medical Center - Willem Alexander Children's Hospital, Leiden, the Netherlands
| | - Barbara de Koning
- Department of Pediatric Gastroenterology, Erasmus Medical Center - Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Jessie Hulst
- Department of Pediatric Gastroenterology, Erasmus Medical Center - Sophia Children's Hospital, Rotterdam, the Netherlands
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Luque V, Feliu A, Escribano J, Ferré N, Flores G, Monné R, Gutiérrez-Marín D, Guillen N, Muñoz-Hernando J, Zaragoza-Jordana M, Gispert-Llauradó M, Rubio-Torrents C, Núñez-Roig M, Alcázar M, Ferré R, Basora JM, Hsu P, Alegret-Basora C, Arasa F, Venables M, Singh P, Closa-Monasterolo R. The Obemat2.0 Study: A Clinical Trial of a Motivational Intervention for Childhood Obesity Treatment. Nutrients 2019; 11:E419. [PMID: 30781525 PMCID: PMC6413236 DOI: 10.3390/nu11020419] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 02/11/2019] [Accepted: 02/12/2019] [Indexed: 02/07/2023] Open
Abstract
The primary aim of the Obemat2.0 trial was to evaluate the efficacy of a multicomponent motivational program for the treatment of childhood obesity, coordinated between primary care and hospital specialized services, compared to the usual intervention performed in primary care. This was a cluster randomized clinical trial conducted in Spain, with two intervention arms: motivational intervention group vs. usual care group (as control), including 167 participants in each. The motivational intervention consisted of motivational interviewing, educational materials, use of an eHealth physical activity monitor and three group-based sessions. The primary outcome was body mass index (BMI) z score increments before and after the 12 (+3) months of intervention. Secondary outcomes (pre-post intervention) were: adherence to treatment, waist circumference (cm), fat mass index (z score), fat free mass index (z score), total body water (kg), bone mineral density (z score), blood lipids profile, glucose metabolism, and psychosocial problems. Other assessments (pre and post-intervention) were: sociodemographic information, physical activity, sedentary activity, neuropsychological testing, perception of body image, quality of the diet, food frequency consumption and foods available at home. The results of this clinical trial could open a window of opportunity to support professionals at the primary care to treat childhood obesity. The clinicaltrials.gov identifier was NCT02889406.
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Affiliation(s)
- Veronica Luque
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
- Hospital Universitari de Tarragona Joan XXIII, 43007 Tarragona, Spain.
| | - Albert Feliu
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
- Hospital Universitari Sant Joan de Reus, 43204 Reus, Spain.
| | - Joaquín Escribano
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
- Hospital Universitari Sant Joan de Reus, 43204 Reus, Spain.
| | - Natalia Ferré
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
| | - Gemma Flores
- Unitat de Suport a la Recerca Tarragona-Reus, IDIAPJGol, 43204 Reus, Spain.
| | - Raquel Monné
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
- Unitat de Suport a la Recerca Tarragona-Reus, IDIAPJGol, 43204 Reus, Spain.
| | - Desirée Gutiérrez-Marín
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
| | - Núria Guillen
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
- Hospital Universitari Sant Joan de Reus, 43204 Reus, Spain.
| | - Judit Muñoz-Hernando
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
| | - Marta Zaragoza-Jordana
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
| | - Mariona Gispert-Llauradó
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
| | - Carme Rubio-Torrents
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
| | - Mercè Núñez-Roig
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
| | - Mireia Alcázar
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
| | - Raimon Ferré
- Hospital Universitari Sant Joan de Reus, 43204 Reus, Spain.
| | - Josep M Basora
- Unitat de Suport a la Recerca Tarragona-Reus, IDIAPJGol, 43204 Reus, Spain.
| | - Pablo Hsu
- Unitat de Suport a la Recerca Tarragona-Reus, IDIAPJGol, 43204 Reus, Spain.
| | - Clara Alegret-Basora
- Hospital Universitari Sant Joan de Reus, 43204 Reus, Spain.
- Unitat de Suport a la Recerca Tarragona-Reus, IDIAPJGol, 43204 Reus, Spain.
| | - Francesc Arasa
- Hospital Verge de la Cinta, 43500 Tortosa, Tarragona, Spain.
| | | | - Priya Singh
- MRC Elsie Widdowson laboratory, Cambridge CB1 9NL, UK.
| | - Ricardo Closa-Monasterolo
- Pediatric Nutrition and Human Development Research Unit, Universitat Rovira i Virgili, IISPV, 43201 Reus, Spain.
- Hospital Universitari de Tarragona Joan XXIII, 43007 Tarragona, Spain.
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Munguía-Izquierdo D, Suárez-Arrones L, Di Salvo V, Paredes-Hernández V, Ara I, Mendez-Villanueva A. Estimating fat-free mass in elite youth male soccer players: cross-validation of different field methods and development of prediction equation. J Sports Sci 2018; 37:1197-1204. [PMID: 30526374 DOI: 10.1080/02640414.2018.1551045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
This study determined the most effective field method for quantifying fat-free mass (FFM) in elite youth male soccer players compared to dual X-ray absorptiometry (DXA) values and to develop prediction equations for FFM based on anthropometric variables. Forty-one male elite-standard youth soccer players, ages 16.2-18.0 years, undertook FFM assessments including bioelectrical impedance analysis, and different skinfold-based prediction equations. DXA provided a criterion measure of FFM. Correlation coefficients, bias, limits of agreement, and differences were used as validity measures, and regression analyses to develop soccer-specific prediction equations. Slaughter et al (1988), Durnin and Wormersley (1974), and Sarria et al (1998) equations showed the lowest biases, and no significant, standardized, and substantial differences against DXA. The new youth soccer-specific anthropometric equation explained 91% of the DXA-derived FFM variance using three circumferences, eight skinfolds, and one bone breadth. All field methods compared in this study may not be adequate for estimating FFM in elite youth male soccer players, except the equations of Slaughter et al (1988), Durnin and Wormersley (1974), and Sarria et al (1998). We recommend the use of the new soccer-specific equation proposed in this study as a valid alternative to DXA to quantify FFM among elite youth male players.
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Affiliation(s)
- Diego Munguía-Izquierdo
- a Physical Performance Sports Research Center, Department of Sports and Computer Science, Section of Physical Education and Sports , Universidad Pablo de Olavide , Seville , Spain
| | - Luis Suárez-Arrones
- a Physical Performance Sports Research Center, Department of Sports and Computer Science, Section of Physical Education and Sports , Universidad Pablo de Olavide , Seville , Spain.,b Football Performance & Science Department , ASPIRE Academy , Doha , Qatar
| | - Valter Di Salvo
- b Football Performance & Science Department , ASPIRE Academy , Doha , Qatar.,c Department of Movement, Human and Health Sciences , University of Rome "Foro Italico" , Rome , Italy
| | - Victor Paredes-Hernández
- d Department of Performance , Universidad Camilo José Cela , Madrid , Spain.,e Performance and science department , Rayo Vallecano Football Club , Madrid , Spain
| | - Ignacio Ara
- f GENUD Toledo Research Group , Universidad de Castilla-La Mancha , Toledo , Spain
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Migueles JH, Delisle Nyström C, Henriksson P, Cadenas-Sanchez C, Ortega FB, Löf M. Accelerometer Data Processing and Energy Expenditure Estimation in Preschoolers. Med Sci Sports Exerc 2018; 51:590-598. [PMID: 30303935 DOI: 10.1249/mss.0000000000001797] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE To assess the capacity of different acceleration metrics from wrist accelerations to estimate total energy expenditure (TEE) and activity energy expenditure (AEE) using doubly labeled water in preschool children. METHODS Thirty-nine preschoolers (5.5 ± 0.1 yr) were included. Total energy expenditure was measured using doubly labeled water during 14 d, and AEE was then calculated using a predicted basal metabolic rate. Participants wore a wGT3X-BT accelerometer on their nondominant wrist for ≥5 d. We derived the following metrics from raw accelerations: raw ActiGraph activity counts using the normal filter and the low-frequency extension; and alternate summary metrics, such as the Euclidian norm minus 1g (ENMO), Euclidian norm of the high-pass-filtered accelerations (HFEN), the bandpass-filtered accelerations, the HFEN plus Euclidean norm of low-pass filtered accelerations minus 1g (HFEN+) and the mean amplitude deviation. RESULTS Alternate summary metrics explained a larger proportion of the variance in TEE and AEE than ActiGraph's activity counts (counts, 7-8 and 25% of TEE and AEE; alternate summary metrics, 13%-16% and 35%-39% of TEE and AEE). Adjustments for body weight and height resulted in an explanation of 51% of AEE by ENMO. All of the metrics adjusted for fat mass and fat-free mass explained up to 84% and 67% of TEE and AEE, respectively. CONCLUSIONS ENMO and the other alternate summary metrics explained more of the variance in TEE and AEE than the ActiGraph's activity counts in 5-yr-old children, suggesting further exploration of these variables in studies on physical activity and energy expenditure in preschoolers. Our results need confirmation in other populations with wider age groups and varying body compositions.
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Affiliation(s)
- Jairo H Migueles
- PROFITH Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, SPAIN
| | | | - Pontus Henriksson
- PROFITH Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, SPAIN.,Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, SWEDEN
| | - Cristina Cadenas-Sanchez
- PROFITH Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, SPAIN
| | - Francisco B Ortega
- PROFITH Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, SPAIN.,Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, SWEDEN
| | - Marie Löf
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, SWEDEN.,Department of Medical and Health Sciences, Linköping University, Linköping, SWEDEN
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Wells JCK, Williams JE, Quek RY, Fewtrell MS. Bio-electrical impedance vector analysis: testing Piccoli's model against objective body composition data in children and adolescents. Eur J Clin Nutr 2018; 73:887-895. [PMID: 30166638 PMCID: PMC6760620 DOI: 10.1038/s41430-018-0292-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 07/12/2018] [Accepted: 08/06/2018] [Indexed: 01/22/2023]
Abstract
BACKGROUND/OBJECTIVES Bio-electrical impedance (BI) analysis is a simple body composition method ideal for children. However, its utility in sick or malnourished children is complicated by variability in hydration. BI vector analysis (BIVA) potentially resolves this, using a theoretical model that differentiates hydration from cell mass. We tested this model against reference methods in healthy children varying widely in age and nutritional status. SUBJECTS/METHODS We compiled body composition data from 291 children and adolescents (50% male) aged 4-20 years of European ancestry. Measurements included anthropometry, BIVA outcomes (height-adjusted resistance (R/H) and reactance (Xc/H); phase angle (PA)), and fat-free mass (FFM), fat mass (FM) and FFM-hydration (HFFM) by the criterion 4-component model. All outcomes were converted to age- and sex-standardised standard deviation scores (SDS). Graphic analysis and regression analysis were used to evaluate the BIVA model. RESULTS R/H and Xc/H declined with age in curvilinear manner, whereas PA increased linearly with age. R/H-SDS and Xc-SDS were negatively correlated with FFM-SDS, HFFM-SDS. and FM-SDS. PA was positively correlated with FFM-SDS but unrelated to HFFM-SDS and FM-SDS. CONCLUSIONS While previous studies of adults with major fluid perturbations support the BIVA model, it is less successful in predicting variability in FFM in healthy children and adolescents. BIVA outcomes varied as predicted by the model with HFFM, but not as predicted with FFM. Variability in adiposity also explains some of the variability in BIVA traits. Further work is needed to develop a theoretical BIVA model for application in paediatric patients without major fluid disturbances.
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Affiliation(s)
- Jonathan C K Wells
- Childhood Nutrition Research Centre, Population, Policy and Practice Programme, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK
| | - Jane E Williams
- Childhood Nutrition Research Centre, Population, Policy and Practice Programme, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK
| | - Rina Y Quek
- Childhood Nutrition Research Centre, Population, Policy and Practice Programme, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK
| | - Mary S Fewtrell
- Childhood Nutrition Research Centre, Population, Policy and Practice Programme, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK.
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35
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The paediatric option for BodPod to assess body composition in preschool children: what fat-free mass density values should be used? Br J Nutr 2018; 120:797-802. [PMID: 30132437 DOI: 10.1017/s0007114518002064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Air displacement plethysmography utilises a two-component model to assess body composition, which relies on assumptions regarding the density of fat-free mass (FFM). To date, there is no evidence as to whether Lohman's or Wells et al.'s FFM density values are more accurate in young children. Therefore, the aims of this study were to compare total body fat percentage (TBF%) assessed using the BodPod with both Lohman's and Wells et al.'s FFM density values with TBF% from the three-component (3C) model in forty healthy Swedish children aged 5·5 years. Average TBF% calculated using Lohman's FFM density values underestimated TBF% in comparison with the corresponding value assessed using the 3C model (22·2 (sd 5·7) and 25·1 (sd 5·5) %, respectively; P<0·001). No statistically significant difference was observed between TBF% assessed using Wells et al.'s FFM density values and the 3C model (24·9 (sd 5·5) and 25·1 (sd 5·5) %, respectively; P=0·614). The Bland and Altman plots for TBF% using both Lohman's and Wells et al.'s FFM density values did not show any bias across the range of body fatness (Lohman: r 0·056, P=0·733 and Wells et al.: r -0·006, P=0·970). These results indicate that Wells et al.'s FFM density values should be used when assessing body composition with the paediatric option for BodPod in 5-year-old children. However, future studies are needed to confirm these results in other populations, including a wider age range of children.
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36
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Chen LW, Tint MT, Fortier MV, Aris IM, Shek LPC, Tan KH, Rajadurai VS, Gluckman PD, Chong YS, Godfrey KM, Kramer MS, Henry JK, Yap F, Lee YS. Body composition measurement in young children using quantitative magnetic resonance: a comparison with air displacement plethysmography. Pediatr Obes 2018; 13:365-373. [PMID: 29024557 PMCID: PMC5805128 DOI: 10.1111/ijpo.12250] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 08/23/2017] [Accepted: 09/18/2017] [Indexed: 12/27/2022]
Abstract
BACKGROUND Quantitative magnetic resonance (QMR) has been increasingly used to measure human body composition, but its use and validation in children is limited. OBJECTIVE We compared body composition measurement by QMR and air displacement plethysmography (ADP) in preschool children from Singapore's multi-ethnic Asian population (n = 152; mean ± SD age: 5.0 ± 0.1 years). METHODS Agreements between QMR-based and ADP-based fat mass and fat mass index (FMI) were assessed using intraclass correlation coefficient (ICC), reduced major axis regression and Bland-Altman plot analyses. Analyses were stratified for the child's sex. RESULTS Substantial agreement was observed between QMR-based and ADP-based fat mass (ICC: 0.85) and FMI (ICC: 0.82). Reduced major axis regression analysis suggested that QMR measurements were generally lower than ADP measurements. Bland-Altman analysis similarly revealed that QMR-based fat mass were (mean difference [95% limits of agreement]) -0.5 (-2.1 to +1.1) kg lower than ADP-based fat mass and QMR-based FMI were -0.4 (-1.8 to +0.9) kg/m2 lower than ADP-based FMI. Stratification by offspring sex revealed better agreement of QMR and ADP measurements in girls than in boys. CONCLUSIONS QMR-based fat mass and FMI showed substantial agreement with, but was generally lower than, ADP-based measures in young Asian children.
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Affiliation(s)
- Ling-Wei Chen
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Mya-Thway Tint
- Department of Obstetrics & Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Marielle V Fortier
- Department of Diagnostic and Interventional Imaging, KK Women’s and Children’s Hospital, Singapore
| | - Izzuddin M Aris
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore
| | - Lynette Pei-Chi Shek
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Kok Hian Tan
- Department of Maternal Fetal Medicine, KK Women’s and Children’s Hospital, Singapore,Duke-National University of Singapore Graduate Medical School, Singapore
| | | | - Peter D Gluckman
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore,Liggins Institute, University of Auckland, New Zealand
| | - Yap-Seng Chong
- Department of Obstetrics & Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore
| | - Keith M Godfrey
- MRC Lifecourse Epidemiology Unit & NIHR Southampton Biomedical Research Centre, University of Southampton & University Hospital Southampton NHS Foundation Trust, UK
| | - Michael S Kramer
- Department of Obstetrics & Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Departments of Pediatrics and of Epidemiology, Biostatistics and Occupational Health, McGill University Faculty of Medicine, Canada
| | - Jeya K Henry
- Clinical Nutrition Research Centre, Singapore Institute for Clinical Sciences, A*STAR, Singapore
| | - Fabian Yap
- Duke-National University of Singapore Graduate Medical School, Singapore,Department of Pediatric Endocrinology, KK Women’s and Children’s Hospital, Singapore,Address correspondence and requests for reprints to: Yung Seng Lee (to whom the proofs should be sent), Department of Paediatrics, Yong Loo Lin School of Medicine, NUHS Tower Block, Level 12, 1E Kent Ridge Road, Singapore 119228; Phone: (65) 67724420; Fax: (65) 67797486; ; Fabian Yap, Department of Paediatrics, KK Women’s and Children’s Hospital, Singapore Children’s Tower Level 3, 100 Bukit Timah Road, S229899; Phone: (65) 6394 8841 Fax: (65) 6394 1700;
| | - Yung Seng Lee
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore,Khoo Teck Puat- National University Children’s Medical Institute, National University Health System, Singapore,Address correspondence and requests for reprints to: Yung Seng Lee (to whom the proofs should be sent), Department of Paediatrics, Yong Loo Lin School of Medicine, NUHS Tower Block, Level 12, 1E Kent Ridge Road, Singapore 119228; Phone: (65) 67724420; Fax: (65) 67797486; ; Fabian Yap, Department of Paediatrics, KK Women’s and Children’s Hospital, Singapore Children’s Tower Level 3, 100 Bukit Timah Road, S229899; Phone: (65) 6394 8841 Fax: (65) 6394 1700;
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Suarez-Arrones L, Petri C, Maldonado RA, Torreno N, Munguía-Izquierdo D, Di Salvo V, Méndez-Villanueva A. Body fat assessment in elite soccer players: cross-validation of different field methods. SCI MED FOOTBALL 2018. [DOI: 10.1080/24733938.2018.1445871] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Luis Suarez-Arrones
- Football Performance & Science Department, Aspire Academy, Doha, Qatar
- Department of Sports and Computer Science, Section of Physical Education and Sports, Universidad Pablo de Olavide, Seville, Spain
| | - Cristian Petri
- Sports Medicine Center. Clinical and Experimental Medicine Department-School of Sports Medicine, University of Florence, Italy
| | - Rafael Angel Maldonado
- Department of Sports and Computer Science, Section of Physical Education and Sports, Universidad Pablo de Olavide, Seville, Spain
| | - Nacho Torreno
- Department of Sports and Computer Science, Section of Physical Education and Sports, Universidad Pablo de Olavide, Seville, Spain
| | - Diego Munguía-Izquierdo
- Department of Sports and Computer Science, Section of Physical Education and Sports, Universidad Pablo de Olavide, Seville, Spain
| | - Valter Di Salvo
- Football Performance & Science Department, Aspire Academy, Doha, Qatar
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Italy
| | - Alberto Méndez-Villanueva
- Football Performance & Science Department, Aspire Academy, Doha, Qatar
- Department of Sports and Computer Science, Section of Physical Education and Sports, Universidad Pablo de Olavide, Seville, Spain
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Machado D, Silva A, Gobbo L, Elias P, de Paula FJA, Ramos N. Anthropometric multicompartmental model to predict body composition In Brazilian girls. BMC Sports Sci Med Rehabil 2018; 9:23. [PMID: 29299316 PMCID: PMC5740741 DOI: 10.1186/s13102-017-0088-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 12/07/2017] [Indexed: 11/10/2022]
Abstract
Background Anthropometric models remain appropriate alternatives to estimate body composition of peripubertal populations. However, these traditional models do not consider other body components that undergo major changes during peripubertal growth spurt, with restrictions to a multicompartimental approach as a quantitative growth. DXA has great potential to determine pediatric body composition in more than one component (3-C), but has limited use in field settings. Thus, the aim of this study was to propose and validate an anthropometric model for simultaneous estimation of lean soft tissue (LST), bone mineral content (BMC) and fat mass (FM) in healthy girls, from a multivariate approach of densitometric technique, as the criterion method. Methods A sample of 84 Brazilian girls (7-17 years) was defined by chronological age and maturity offset. Whole total and regional DXA body scan were performed and, the components were defined (LST, BMC and FM) and considered as dependent variables. Twenty-one anthropometric measures were recorded as independent variables. From a multivariate regression, an anthropometric multicompartmental model was obtained. Results It was possible to predict DXA body components with only four predictive measurements: body weight (BW); supra-iliac skinfold (SiSk); horizontal abdominal skinfold (HaSk) and contracted arm circumference (CaCi) with high coefficients of determination and low estimation errors (LST = 0.6662657 BW - 0. 2157279 SiSk - 0.2069373 HaSk + 0.3411678 CaCi - 1.8504187; BMC = 0.0222185 BW - 0.1001097 SiSk - 0.0064539 HaSk - 0.0084785 CaCi + 0.3733974 and FM = 0.3645630 BW + 0.1000325 SiSk - 0.2888978 HaSk - 0.4752146 CaCi + 2.8461916). The cross-validation was confirmed through the sum of squares of residuals (PRESS) method, presenting accurate coefficients (Q2PRESS from 0.81 to 0.93) and reduced error reliability (SPRESS from 0.01 to 0.30). Conclusions When sophisticated instruments are not available, this model provides valid estimates of multicompartmental body composition of girls in healthy Brazilian pediatric populations.
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Affiliation(s)
- Dalmo Machado
- School of Physical Education and Sport of Ribeirao Preto, University of Sao Paulo, Bandeirantes Ave. 3900, Monte Alegre, Ribeirão Preto, SP 14040-900 Brazil
| | - Analiza Silva
- Exercise and Health Laboratory, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, Portugal
| | - Luis Gobbo
- Department of Physical Education, Universidade Estadual Paulista, Presidente Prudente, Ribeirao Preto, Brazil
| | - Paula Elias
- Department of Internal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP Brazil
| | - Francisco J A de Paula
- Department of Internal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP Brazil
| | - Nilo Ramos
- Department of Graduate and Specialty Studies, Coastal Carolina University, Conway, SC USA
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Foucart L, De Decker A, Sioen I, De Henauw S, Michels N. Hand-to-foot bioelectrical impedance analysis to measure fat mass in healthy children: A comparison with air-displacement plethysmography. Nutr Diet 2017; 74:516-520. [PMID: 29130293 DOI: 10.1111/1747-0080.12345] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 12/02/2016] [Accepted: 01/15/2017] [Indexed: 11/26/2022]
Abstract
AIM To identify children at risk of overweight, assessing children's body composition in a valid way is crucial. The present cross-sectional study examines the comparability of children's fat mass percentage obtained by hand-to-foot bioelectrical impedance analysis (BIA) versus BodPod air-displacement plethysmography as a reference method. METHODS The body composition of 206 Belgian children (7-13 years; 7.7% overweight) was measured with BodPod and hand-to-foot BIA (Tanita BC418 with built-in formula). RESULTS Overall, comparability was the highest in girls. Good ranking agreement (rho = 0.819) and interchangeability (intra-class correlation (ICC) = 0.757) were found in girls but not in boys (rho = 0.568; ICC = 0.512). Although bioelectrical impedance resulted in an overall overestimation of only 0.5 fat%, it underestimated and overestimated fat% in children with, respectively, higher and lower fat%. The 95% limits of agreement distance was around 17 fat%, and there was a significant difference from the line of identity (intercept ≠ 0; slope ≠ 1). CONCLUSIONS Despite good ranking agreement, the use of BIA as an alternative for the BodPod is not recommended because of over-/underestimation and wide limits of agreement. It is not possible to calculate a simple correction factor for the whole fat% range to make the two approaches interchangeable.
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Affiliation(s)
- Lisa Foucart
- Department of Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Annelies De Decker
- Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Isabelle Sioen
- Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.,Department of Food Safety and Food Quality, Faculty of Bio-science engineering, Ghent University, Ghent, Belgium
| | - Stefaan De Henauw
- Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Nathalie Michels
- Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
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Yang EM, Park E, Ahn YH, Choi HJ, Kang HG, Cheong HI, Ha IS. Measurement of Fluid Status Using Bioimpedance Methods in Korean Pediatric Patients on Hemodialysis. J Korean Med Sci 2017; 32:1828-1834. [PMID: 28960036 PMCID: PMC5639064 DOI: 10.3346/jkms.2017.32.11.1828] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 08/19/2017] [Indexed: 01/04/2023] Open
Abstract
Adequate fluid management is an important therapeutic goal of dialysis. Recently, bioelectrical impedance methods have been used to determine body fluid status, but pediatric reports are rare. To determine the accuracy of bioelectrical impedance methods in the assessment of body fluid statusof children undergoing hemodialysis (HD), 12 children on HD were studied. A multi-frequency bioimpedance analysis device (Inbody S10) and bioimpedance spectroscopy device (BCM) were used to evaluate fluid status. Fluid removal during a HD session (assessed as body-weight change, ΔBWt) was compared with the difference in total body water determined by each device (measured fluid difference, ΔMF), which showed strong correlation using either method (Pearson's coefficient, r = 0.772 with Inbody S10 vs. 0.799 with BCM). Bioimpedance measurement indicated fluid overload (FO; ΔHS greater than 7%) in 34.8% with Inbody S10 and 56.5% with BCM, and only about 60% of children with FO by bioimpedance methods showed clinical symptoms such as hypertension and edema. In some patients with larger weight gain Inbody S10-assessed overhydration (OH) was much smaller than BCM-assessed OH, suggesting that BCM is more relevant in estimating fluid accumulation amount than Inbody S10. To our knowledge, this is the first report on the use of body composition monitors to assess fluid status in Korean children receiving HD.
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Affiliation(s)
- Eun Mi Yang
- Department of Pediatrics, Chonnam National University Hospital, Gwangju, Korea
| | - Eujin Park
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Yo Han Ahn
- Department of Pediatrics, Hallym University Kangnam Sacred Heart Hospital, Seoul, Korea
| | - Hyun Jin Choi
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Hee Gyung Kang
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea.
| | - Hae Il Cheong
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Il Soo Ha
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
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Collings PJ, Ball HL, Santorelli G, West J, Barber SE, McEachan RR, Wright J. Sleep Duration and Adiposity in Early Childhood: Evidence for Bidirectional Associations from the Born in Bradford Study. Sleep 2017; 40:2740619. [PMID: 28364513 PMCID: PMC5804981 DOI: 10.1093/sleep/zsw054] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Study Objectives: To examine independent associations of sleep duration with total and abdominal adiposity, and the bidirectionality of these associations, in a young biethnic sample of children from a disadvantaged location. Methods: Child sleep duration (h/day) was parent-reported by questionnaire and indices of total (body weight, body mass index, percent body fat (%BF), sum of skinfolds) and abdominal adiposity (waist circumference) were measured using standard anthropometric procedures at approximately 12, 18, 24, and 36 months of age in 1,338 children (58% South Asian; 42% White). Mixed effects models were used to quantify independent associations (expressed as standardised β-coefficients (95% confidence interval (CI)) of sleep duration with adiposity indices using data from all four time-points. Factors considered for adjustment in models included basic demographics, pregnancy and birth characteristics, and lifestyle behaviours. Results: With the exception of the sum of skinfolds, sleep duration was inversely and independently associated with indices of total and abdominal adiposity in South Asian children. For example, one standard deviation (SD) higher sleep duration was associated with reduced %BF by -0.029 (95% CI: −0.053, −0.0043) SDs. Higher adiposity was also independently associated with shorter sleep duration in South Asian children (for example, %BF: β = -0.10 (-0.16, -0.028) SDs). There were no significant associations in White children. Conclusions: Associations between sleep duration and adiposity are bidirectional and independent among South Asian children from a disadvantaged location. The results highlight the importance of considering adiposity as both a determinant of decreased sleep and a potential consequence.
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Affiliation(s)
- Paul J Collings
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - Helen L Ball
- Parent-Infant Sleep Lab & Anthropology of Health Research Group, Department of Anthropology, Durham University, Durham
| | - Gillian Santorelli
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - Jane West
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - Sally E Barber
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - Rosemary Rc McEachan
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - John Wright
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
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Tovar-Galvez MI, González-Jiménez E, Martí-García C, Schmidt-RioValle J. Body composition in a population of school adolescents: a comparison of simple anthropometric methods and bioelectrical impedance. ACTA ACUST UNITED AC 2017; 64:424-431. [PMID: 28895538 DOI: 10.1016/j.endinu.2017.05.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 05/30/2017] [Accepted: 05/30/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To report the anthropometric characteristics and body composition and to analyze the potential sex-based differences in Spanish schoolchildren and adolescents living in Granada and Ceuta. To estimate body fat percentage using regression equations and bioelectrical impedance to check for sex differences. An additional objective was to see whether the body fat percentages obtained by these two methods were similar. METHODS A cross-sectional study including 1,518 children and adolescents (aged 9-16) from 12 primary and secondary schools in Ceuta and Granada. The nutritional status of the subjects was assessed and their body fat percentage was calculated. RESULTS There was a strong sexual dimorphism, with higher prevalence rates of overweight in boys and obesity in girls. Girls had higher mean body fat levels regardless of the measuring method used (p<.001). Correlation between bioelectrical impedance analysis and regression equations was high (r=0.830), as was the internal correlation coefficient (ICC>0.75). A Bland-Altman comparison showed a high agreement between bioelectrical impedance and Behnke and Lohman equations. CONCLUSIONS Specific equations considering subject sex and age should be used to estimate body density. Regardless of the method used, girls had higher body fat percentages. The Behnke and Lohman equations, combined with BIA, were found to be the most accurate methods for measuring body density in the study population.
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Affiliation(s)
- María I Tovar-Galvez
- Departamento de Enfermería, Facultad de Ciencias de la Salud de Ceuta, Universidad de Granada, España
| | - Emilio González-Jiménez
- Departamento de Enfermería, Facultad de Ciencias de la Salud, Universidad de Granada, España.
| | - Celia Martí-García
- Departamento de Enfermería y Podología, Facultad de Ciencias de la Salud, Universidad de Málaga, España
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Delisle Nyström C, Pomeroy J, Henriksson P, Forsum E, Ortega FB, Maddison R, Migueles JH, Löf M. Evaluation of the wrist-worn ActiGraph wGT3x-BT for estimating activity energy expenditure in preschool children. Eur J Clin Nutr 2017; 71:1212-1217. [PMID: 28745334 DOI: 10.1038/ejcn.2017.114] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 05/09/2017] [Accepted: 06/12/2017] [Indexed: 11/09/2022]
Abstract
BACKGROUND/OBJECTIVES Easy-to-use and accurate methods to assess free-living activity energy expenditure (AEE) in preschool children are required. The aims of this study in healthy preschool children were to (a) evaluate the ability of the wrist-worn ActiGraph wGT3x-BT to predict free-living AEE and (b) assess wear compliance using a 7-day, 24-h protocol. SUBJECTS/METHODS Participants were 40 Swedish children (5.5±0.2 years) in the Mobile-based intervention intended to stop obesity in preschoolers (MINISTOP) obesity prevention trial. Total energy expenditure (TEE) was assessed using the doubly labeled water method during 14 days. AEE was calculated as (TEEx0.9) minus predicted basal metabolic rate. The ActiGraph accelerometer was worn on the wrist for 7 days and outputs used were mean of the daily and awake filtered vector magnitude (mean VM total and mean VM waking). RESULTS The ActiGraph was worn for 7 (n=34, 85%), 6 (n=4, 10%), 5 (n=1, 2.5%) and 4 (n=1, 2.5%) days (a valid day was ⩾600 awake minutes). Alone, mean VM total and mean VM waking were able to explain 14% (P=0.009) and 24% (P=0.001) of the variation in AEE, respectively. By incorporating fat and fat-free mass in the models 58% (mean VM total) and 62% (mean VM waking) in the variation of AEE was explained (P<0.001). CONCLUSIONS The wrist-worn ActiGraph wGT3x-BT in combination with body composition variables explained up to the 62% of the variation in AEE. Given the high wear compliance, the wrist-worn ActiGraph has the potential to provide useful information in studies where physical activity in preschool children is measured.
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Affiliation(s)
- C Delisle Nyström
- Department of Biosciences and Nutrition, NOVUM, Karolinska Institutet, Huddinge, Sweden
| | - J Pomeroy
- Marshfield Clinic Research Institute, Marshfield, WI, USA
| | - P Henriksson
- Department of Biosciences and Nutrition, NOVUM, Karolinska Institutet, Huddinge, Sweden.,PROFITH PROmoting FITness and Health through physical activity Research Group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - E Forsum
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - F B Ortega
- Department of Biosciences and Nutrition, NOVUM, Karolinska Institutet, Huddinge, Sweden.,PROFITH PROmoting FITness and Health through physical activity Research Group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - R Maddison
- School of Exercise and Nutrition Sciences, Deakin University
| | - J H Migueles
- PROFITH PROmoting FITness and Health through physical activity Research Group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - M Löf
- Department of Biosciences and Nutrition, NOVUM, Karolinska Institutet, Huddinge, Sweden
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Body mass index adjustments to increase the validity of body fatness assessment in UK Black African and South Asian children. Int J Obes (Lond) 2017; 41:1048-1055. [PMID: 28325931 PMCID: PMC5500188 DOI: 10.1038/ijo.2017.75] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 12/20/2016] [Accepted: 02/19/2017] [Indexed: 11/18/2022]
Abstract
Background/Objectives: Body mass index (BMI) (weight per height2) is the most widely used marker of childhood obesity and total body fatness (BF). However, its validity is limited, especially in children of South Asian and Black African origins. We aimed to quantify BMI adjustments needed for UK children of Black African and South Asian origins so that adjusted BMI related to BF in the same way as for White European children. Methods: We used data from four recent UK studies that made deuterium dilution BF measurements in UK children of White European, South Asian and Black African origins. A height-standardized fat mass index (FMI) was derived to represent BF. Linear regression models were then fitted, separately for boys and girls, to quantify ethnic differences in BMI–FMI relationships and to provide ethnic-specific BMI adjustments. Results: We restricted analyses to 4–12 year olds, to whom a single consistent FMI (fat mass per height5) could be applied. BMI consistently underestimated BF in South Asians, requiring positive BMI adjustments of +1.12 kg m−2 (95% confidence interval (CI): 0.83, 1.41 kg m−2; P<0.0001) for boys and +1.07 kg m−2 (95% CI: 0.74, 1.39 kg m−2; P<0.0001) for girls of all age groups and FMI levels. BMI overestimated BF in Black Africans, requiring negative BMI adjustments for Black African children. However, these were complex because there were statistically significant interactions between Black African ethnicity and FMI (P=0.004 boys; P=0.003 girls) and also between FMI and age group (P<0.0001 for boys and girls). BMI adjustments therefore varied by age group and FMI level (and indirectly BMI); the largest adjustments were in younger children with higher unadjusted BMI and the smallest in older children with lower unadjusted BMI. Conclusions: BMI underestimated BF in South Asians and overestimated BF in Black Africans. Ethnic-specific adjustments, increasing BMI in South Asians and reducing BMI in Black Africans, can improve the accuracy of BF assessment in these children.
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De Decker A, Verbeken S, Sioen I, Moens E, Braet C, De Henauw S. Fat Tissue Accretion in Children and Adolescents: Interplay between Food Responsiveness, Gender, and the Home Availability of Snacks. Front Psychol 2017; 7:2041. [PMID: 28101078 PMCID: PMC5209336 DOI: 10.3389/fpsyg.2016.02041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 12/16/2016] [Indexed: 11/13/2022] Open
Abstract
The appetitive trait “food responsiveness” is assumed to be a risk factor for adiposity gain primarily in obesogenic environments. So far, the reported results are inconsistent in school-aged children, possibly because these studies did not take into account important moderators such as gender and the food-environment. In order to better inform caregivers, clinicians and the developers of targeted obesity-prevention interventions on the conditions in which food responsiveness precedes adiposity gain, the current study investigated if this relationship is stronger in girls and in children exposed to a higher home availability of energy-dense snacks. Age- and sex-independent Fat and Lean Mass Index z-scores were computed based on air-displacement plethysmography at baseline and after 2 years in a community sample of 129 children (48.8% boys) aged 7.5–14 years at baseline. Parents reported at baseline on children's food responsiveness and the home availability of energy-dense snacks. Food responsiveness was a significant predictor of increases in Fat Mass Index z-scores over 2 years in girls but not boys. The home availability of energy-dense snacks did not significantly moderate the relation of food responsiveness with Fat Mass Index z-score changes. The results suggest that food responsiveness precedes accelerated fat tissue accretion in girls, and may inform targeted obesity-prevention interventions. Further, future research should investigate to which food-environmental parameters children high in food responsiveness mainly respond.
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Affiliation(s)
- Annelies De Decker
- Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University Ghent, Belgium
| | - Sandra Verbeken
- Department of Developmental, Personality and Social Psychology, Faculty of Psychology and Educational Sciences, Ghent University Ghent, Belgium
| | - Isabelle Sioen
- Department of Public Health, Faculty of Medicine and Health Sciences, Ghent UniversityGhent, Belgium; Department of Food Safety and Food Quality, Faculty of Bioscience Engineering, Ghent UniversityGhent, Belgium
| | - Ellen Moens
- Department of Developmental, Personality and Social Psychology, Faculty of Psychology and Educational Sciences, Ghent University Ghent, Belgium
| | - Caroline Braet
- Department of Developmental, Personality and Social Psychology, Faculty of Psychology and Educational Sciences, Ghent University Ghent, Belgium
| | - Stefaan De Henauw
- Department of Public Health, Faculty of Medicine and Health Sciences, Ghent UniversityGhent, Belgium; Department of Health Sciences, Vesalius, University College GhentGhent, Belgium
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Body fat evolution as predictor of retinal microvasculature in children. Int J Obes (Lond) 2016; 41:527-532. [PMID: 28008170 DOI: 10.1038/ijo.2016.226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 10/27/2016] [Accepted: 11/24/2016] [Indexed: 11/08/2022]
Abstract
OBJECTIVES Microvascular changes may represent an underlying mechanism through which overweight contributes to cardiovascular disease development. Therefore, the aim of this study was to investigate whether changes in children's body fat over time are associated with the retinal microvasculature, a marker of cardiovascular aging. METHODS In a longitudinal design, 171 healthy Flemish children (53.8% boys) were followed-up for 7 years (2008-2015), aged 2.7-8.1 years at baseline.Z-scores of body mass index (zBMI; 4.1% overweight), waist circumference (zWC) and fat mass index (zFMI by BODPOD) were obtained using standardized protocols during each visit. Retinal arteriolar (central retinal arteriolar equivalent (CRAE)) and venular equivalents (central retinal venular equivalent (CRVE)) were measured from digital retinal photographs (2015) using IVAN software. Cross-sectional and longitudinal associations between changes in body fat and retinal microvasculature were explored using multivariable regression analysis, while controlling for age, sex, mean arterial pressure, alternate retinal caliber, physical activity, diet and birth weight. RESULTS In cross-sectional analysis, children with high zFMI had a higher CRVE, but only in boys (β=0.25, P=0.02). In addition, boys with high zFMI had also a lower CRAE to CRVE ratio (β=-0.26, P=0.03). No associations were seen with the CRAE, or between zBMI or zWC and the retinal microvasculature. Only changes in zFMI over time were found to be positively associated with the CRVE in boys (β=0.38, P=0.01). CONCLUSIONS Our analysis over a 7-year period shows that changes in body fat during childhood are already associated with the CRVE (especially in boys).
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Fat and lean tissue accretion in relation to reward motivation in children. Appetite 2016; 108:317-325. [PMID: 27751842 DOI: 10.1016/j.appet.2016.10.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 09/20/2016] [Accepted: 10/13/2016] [Indexed: 11/20/2022]
Abstract
'Reward sensitivity' explains inter-individual differences in the motivation to obtain rewards when reward cues are perceived. This psychobiological trait has been linked to higher consumption of palatable food when exposed to palatable food cues. The current study aims to examine if reward sensitivity explains differences in patterns of fat and lean tissue accretion over time in children. A longitudinal observational study with measurement waves in 2011 (baseline), 2012, 2013, and 2015 was conducted. The sample was a population-based Flemish cohort of children (n = 446, 50% boys and 5.5-12 years at baseline; 38.8% of the baseline sample also participated in 2015). Baseline reward sensitivity of the children was assessed by parent ratings on the Drive subscale of the Behavioral Inhibition System/Behavioral Approach System scales. Age- and sex-independent Fat and Lean Mass Index z-scores (zFMI and zLMI respectively) were computed for each study wave based on air-displacement plethysmography. In girls, but not boys, reward sensitivity was positively associated with the baseline zFMI and zLMI (95% confidence intervals of unstandardized estimates: 0.01 to 0.11 and 0.01 to 0.10 respectively, P values 0.01 and 0.02 respectively). Further, reward sensitivity explained 14.8% and 11.6% of the change in girls' zFMI and zLMI respectively over four years: the zFMI and zLMI increased and decreased respectively in high reward sensitive girls (95% confidence intervals of unstandardized estimates: 0.01 to 0.11 and -0.12 to -0.01 respectively, P values 0.01 and 0.02 respectively). Hence, girls high in reward sensitivity had significantly higher adiposity gain over four years parallel with lower increase in lean mass than was expected on the basis of their age and height. These results may help to identify appropriate targets for interventions for obesity prevention.
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Steinberger J, Daniels SR, Hagberg N, Isasi CR, Kelly AS, Lloyd-Jones D, Pate RR, Pratt C, Shay CM, Towbin JA, Urbina E, Van Horn LV, Zachariah JP. Cardiovascular Health Promotion in Children: Challenges and Opportunities for 2020 and Beyond: A Scientific Statement From the American Heart Association. Circulation 2016; 134:e236-55. [PMID: 27515136 DOI: 10.1161/cir.0000000000000441] [Citation(s) in RCA: 180] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
This document provides a pediatric-focused companion to "Defining and Setting National Goals for Cardiovascular Health Promotion and Disease Reduction: The American Heart Association's Strategic Impact Goal Through 2020 and Beyond," focused on cardiovascular health promotion and disease reduction in adults and children. The principles detailed in the document reflect the American Heart Association's new dynamic and proactive goal to promote cardiovascular health throughout the life course. The primary focus is on adult cardiovascular health and disease prevention, but critical to achievement of this goal is maintenance of ideal cardiovascular health from birth through childhood to young adulthood and beyond. Emphasis is placed on the fundamental principles and metrics that define cardiovascular health in children for the clinical or research setting, and a balanced and critical appraisal of the strengths and weaknesses of the cardiovascular health construct in children and adolescents is provided. Specifically, this document discusses 2 important factors: the promotion of ideal cardiovascular health in all children and the improvement of cardiovascular health metric scores in children currently classified as having poor or intermediate cardiovascular health. Other topics include the current status of cardiovascular health in US children, opportunities for the refinement of health metrics, improvement of health metric scores, and possibilities for promoting ideal cardiovascular health. Importantly, concerns about the suitability of using single thresholds to identify elevated cardiovascular risk throughout the childhood years and the limits of our current knowledge are noted, and suggestions for future directions and research are provided.
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González-Agüero A, Matute-Llorente Á, Gómez-Cabello A, Vicente-Rodríguez G, Casajús JA. Percentage of body fat in adolescents with Down syndrome: Estimation from skinfolds. Disabil Health J 2016; 10:100-104. [PMID: 27436427 DOI: 10.1016/j.dhjo.2016.05.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 05/19/2016] [Accepted: 05/30/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Adolescents with Down syndrome (DS) have a unique morphology and body shape, and this needs to be taken into account when assessing body fat percentage (BF%). OBJECTIVE To develop a predictive equation from anthropometric variables (skinfolds) for estimating BF% in adolescents with DS. METHODS Twenty-three adolescents with DS (7 girls, 16 boys) participated in the study; seven skinfold measurements were taken (biceps, triceps, subscapular, supraspinale, abdominal, front thigh, and medial calf), circumferences and diameters were measured following ISAK recommendations. Total body volume (and then body density) was measured with air displacement plethysmography (ADP); BF% was then calculated. Correlation between anthropometry data and BF% by ADP, and stepwise regression analyses were applied to develop a specific prediction equation. RESULTS All the skinfolds, BMI, hip, waist and thigh circumferences correlated with BF% and were included in the regression analysis; sex and triceps were added into the model (R2 = 0.89, p < 0.05). Therefore the proposed equation computed as follows: BF% = (0.97 TR) - (8.869·SEX) + 15.6 where TR is triceps skinfolds (mm) and SEX is equal to 0 for female and 1 for male. CONCLUSIONS The proposed prediction equation is recommended for the assessment of BF% in adolescents with DS as it is the only one specifically developed and validated in this unique population. It is a cheap, reliable and accessible method that removes the need for use of expensive equipment.
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Affiliation(s)
- Alejandro González-Agüero
- GENUD (Growth, Exercise, NUtrition and Development) Research Group, University of Zaragoza, Zaragoza, Spain; Faculty of Health and Sport Sciences, University of Zaragoza, Huesca, Spain.
| | - Ángel Matute-Llorente
- GENUD (Growth, Exercise, NUtrition and Development) Research Group, University of Zaragoza, Zaragoza, Spain; Faculty of Health and Sport Sciences, University of Zaragoza, Huesca, Spain
| | - Alba Gómez-Cabello
- GENUD (Growth, Exercise, NUtrition and Development) Research Group, University of Zaragoza, Zaragoza, Spain; Centro Universitario de la Defensa, Zaragoza, Spain
| | - Germán Vicente-Rodríguez
- GENUD (Growth, Exercise, NUtrition and Development) Research Group, University of Zaragoza, Zaragoza, Spain; Faculty of Health and Sport Sciences, University of Zaragoza, Huesca, Spain
| | - José A Casajús
- GENUD (Growth, Exercise, NUtrition and Development) Research Group, University of Zaragoza, Zaragoza, Spain; Faculty of Health and Sport Sciences, University of Zaragoza, Huesca, Spain
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Wendel D, Weber D, Leonard MB, Magge SN, Kelly A, Stallings VA, Pipan M, Stettler N, Zemel BS. Body composition estimation using skinfolds in children with and without health conditions affecting growth and body composition. Ann Hum Biol 2016; 44:108-120. [PMID: 27121656 DOI: 10.3109/03014460.2016.1168867] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Body composition prediction equations using skinfolds are useful alternatives to advanced techniques, but their utility across diverse paediatric populations is unknown. AIM To evaluate published and new prediction equations across diverse samples of children with health conditions affecting growth and body composition. SUBJECTS AND METHODS Anthropometric and dual-energy X-ray absorptiometry (DXA) body composition measures were obtained in children with Down syndrome (n = 59), Crohn disease (n = 128), steroid-sensitive nephrotic syndrome (n = 67) and a healthy reference group (n = 835). Published body composition equations were evaluated. New equations were developed for ages 3-21 years using the healthy reference sample and validated in other groups and national survey data. RESULTS Fat mass (FM), fat-free mass (FFM) and percentage body fat (%BF) from published equations were highly correlated with DXA-derived measures (r = 0.71-0.98), but with poor agreement (mean difference = 2.4 kg, -1.9 kg and 6.3% for FM, FFM and %BF). New equations produced similar correlations (r = 0.85-1.0) with improved agreement for the reference group (0.2 kg, 0.4 kg and 0.0% for FM, FFM and %BF, respectively) and in sub-groups. CONCLUSIONS New body composition prediction equations show excellent agreement with DXA and improve body composition estimation in healthy children and those with selected conditions affecting growth.
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Affiliation(s)
| | - David Weber
- b Golisano Children's Hospital, School of Medicine and Dentistry, University of Rochester , Rochester , NY , USA
| | - Mary B Leonard
- c Stanford University School of Medicine , Palo Alto , CA , USA
| | - Sheela N Magge
- d Children's National Health System , Washington , DC , USA
| | - Andrea Kelly
- e The Children's Hospital of Philadelphia , Philadelphia , PA , USA
| | | | - Mary Pipan
- e The Children's Hospital of Philadelphia , Philadelphia , PA , USA
| | | | - Babette S Zemel
- e The Children's Hospital of Philadelphia , Philadelphia , PA , USA
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