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King-Dowling S, Fortnum K, Chirico D, Le T, Kwan MYW, Timmons BW, Cairney J. Reliability of field- and laboratory-based assessments of health-related fitness in preschool-aged children. Am J Hum Biol 2024; 36:e23987. [PMID: 37725014 DOI: 10.1002/ajhb.23987] [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: 08/14/2023] [Accepted: 08/28/2023] [Indexed: 09/21/2023] Open
Abstract
OBJECTIVES Reliable measurements of health-related fitness-cardiorespiratory endurance, muscular endurance, muscular strength, body composition, and flexibility-are imperative for understanding and tracking health-related fitness from the preschool age. This study aimed to examine the test-retest reliability of field-based (i.e., sit and reach [standard and back-saver], standing long jump, grip strength); and laboratory-based (i.e., Bruce Protocol Treadmill Test, Wingate Anaerobic Test) assessments of health-related fitness in preschool aged children (4-5 years). METHODS Forty-two typically developing children participated in both assessment time points separated by 2-3 weeks. All fitness assessments were administered individually and repeated in the same order by the same assessor. Heteroscedasticity was examined for each parameter. Intraclass correlation coefficients were calculated to assess test-retest reliability. RESULTS All parameters were homoscedastic. Test-retest reliability for the field-based tests and Bruce Protocol Treadmill Test parameters were moderate to good. Test-retest reliability for the Wingate Test parameters were good to excellent for maximum pedal rate, peak power, and peak power/kg; mean power and fatigue measured at 10 and 30 s demonstrated moderate to excellent test-retest reliability. CONCLUSION The standard sit and reach, grip strength, and short-term muscle power from the Wingate test are reliable assessments of health-related fitness in preschool-aged children.
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Affiliation(s)
- Sara King-Dowling
- Department of Family Medicine, Infant and Child Health Lab, McMaster University, Hamilton, Ontario, Canada
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Kathryn Fortnum
- The University of Queensland, Health and Wellbeing Centre for Research Innovation, School of Human Movement and Nutrition Sciences, Brisbane, Queensland, Australia
| | - Daniele Chirico
- Department of Family Medicine, Infant and Child Health Lab, McMaster University, Hamilton, Ontario, Canada
| | - Tuyen Le
- Department of Family Medicine, Infant and Child Health Lab, McMaster University, Hamilton, Ontario, Canada
| | - Matthew Y W Kwan
- Department of Family Medicine, Infant and Child Health Lab, McMaster University, Hamilton, Ontario, Canada
- Department of Child and Youth Studies, Brock University, St Catharines, Ontario, Canada
| | - Brian W Timmons
- Child Health and Exercise Medicine Program, Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | - John Cairney
- Department of Family Medicine, Infant and Child Health Lab, McMaster University, Hamilton, Ontario, Canada
- The University of Queensland, Health and Wellbeing Centre for Research Innovation, School of Human Movement and Nutrition Sciences, Brisbane, Queensland, Australia
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Faienza MF, Urbano F, Chiarito M, Lassandro G, Giordano P. Musculoskeletal health in children and adolescents. Front Pediatr 2023; 11:1226524. [PMID: 38161439 PMCID: PMC10754974 DOI: 10.3389/fped.2023.1226524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 11/24/2023] [Indexed: 01/03/2024] Open
Abstract
The purpose of this narrative review was to investigate the key determinants of musculoskeletal health in childhood and adolescence, with particular attention to the role of physical activity. First, we examined the importance of bone modeling and remodeling in maintaining the bone health and the integrity and mechanical characteristic of the skeleton. In addition, we reported the evidence on an appropriate calcium and vitamin D intake, as well as local load variation in achieving proper peak bone mass. Proteomic and transcriptomic studies identified the skeletal muscle "secretoma", consisting of several myokines involved in endocrine and paracrine functions. Among these, we explored the role of irisin, a myokine involved in the muscle-bone crosstalk, and in the regulation of metabolic pathways. It is known that physical activity during growing positively impacts on skeleton and can protect by bone loss in adulthood. However, there are still concerns about the optimal interval duration and exercise intensity, particularly at the pubertal growth spurt which represents a window of opportunity to increase skeletal strength. We reported data from clinical trials performed in the last 5 years analyzing the impact of the type and timing of physical activity during childhood on skeletal development. Finally, we reported recent data on the significance of physical activity in some rare diseases.
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Affiliation(s)
- Maria Felicia Faienza
- Pediatric Unit, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari “Aldo Moro”, Bari, Italy
| | | | - Mariangela Chiarito
- Pediatric Unit, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari “Aldo Moro”, Bari, Italy
| | | | - Paola Giordano
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, Bari, Italy
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Barbosa CCL, da Costa JC, Romanzini CLP, Batista MB, Blasquez-Shigaki G, Fernandes RA, Martinho DV, Oliveira T, Ribeiro LP, Coelho-E-Silva MJ, Ronque ERV. Interrelationship between muscle fitness in childhood and bone mineral density in adulthood: mediation analysis of muscle fitness in adulthood. BMC Public Health 2023; 23:648. [PMID: 37016376 PMCID: PMC10074897 DOI: 10.1186/s12889-023-15545-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 03/28/2023] [Indexed: 04/06/2023] Open
Abstract
BACKGROUND This study was aimed to examine the relationship between muscular fitness indicators in childhood and areal bone mineral density (aBMD) in adulthood and to verify whether the relationship is mediated by performance on muscular fitness indicators in adulthood. METHODS A sample of 138 healthy adults (69 males; 22.3 years) were followed after a previous assessment at the age of 7-10 years. Stature, body mass and muscular fitness indicators (handgrip strength, standing long jump and sit-ups tests) were assessed in childhood and adulthood. Additionally, total body, upper limbs, lower limbs, right femoral neck and lumbar spine aBMD was assessed in adulthood using dual X-ray absorptiometry. Analysis included descriptive statistics; t-test or Mann-Whitney U-test for comparison between males and females, multiple linear regression for the prediction aBMD from muscular fitness indicators in childhood, mediation analysis of the respective muscular fitness indicators in adulthood and the relationship between muscular fitness indicators in childhood and aBMD. RESULTS Males were stronger compared to females regarding muscular fitness indicators in childhood and adulthood, and presented higher mean values for aBMD in adulthood, except for lumbar spine (p < 0.05). Regression analysis revealed that some muscular fitness indicators in childhood showed significant positive relationship with bone health indicators in adulthood, such as: handgrip strength and total body aBMD (β = 0.005; R2 = 0.35; p = 0.040) and upper limbs aBMD (β = 0.005; R2 = 0.55; p = 0.019); and sit-ups test was a significant predictors of lumbar spine BMD (β = 0.003; R2 = 0.06; p = 0.039). Mediation analysis pointed out the following: adulthood handgrip strength mediated relationships between childhood handgrip strength and total aBMD (indirect effect (IE) = 0.0025; 95%CI = 0.0005-0.0048), and upper limbs aBMD (IE = 0.0040; 95%CI = 0.0017-0.0069). CONCLUSIONS Muscular fitness indicators in childhood showed significant relationship with bone health indicators in adulthood and the sit-ups test in childhood had direct effect on lumbar spine aBMD in adulthood. Adulthood handgrip strength mediated the relationship between childhood handgrip strength and total body and upper limb aBMD, pointing out that muscular fitness in childhood may be a aBMD determinant in adulthood, especially when higher muscle fitness performance is maintained in adulthood.
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Affiliation(s)
- Cynthia Correa Lopes Barbosa
- Laboratory of Physical Activity and Health, Center of Physical Education and Sports, Londrina State University - UEL, Highway Celso Garcia Cid, Km 380, University Campus, P.O. box 6001, 86051-990, Londrina, Paraná, Brazil
- Department of Humanities, Federal Technological University of Paraná - UTFPR, Apucarana, Paraná, Brazil
| | - Julio Cesar da Costa
- Laboratory of Physical Activity and Health, Center of Physical Education and Sports, Londrina State University - UEL, Highway Celso Garcia Cid, Km 380, University Campus, P.O. box 6001, 86051-990, Londrina, Paraná, Brazil.
| | - Catiana Leila Possamai Romanzini
- Laboratory of Physical Activity and Health, Center of Physical Education and Sports, Londrina State University - UEL, Highway Celso Garcia Cid, Km 380, University Campus, P.O. box 6001, 86051-990, Londrina, Paraná, Brazil
| | - Mariana Biagi Batista
- Laboratory of Physical Activity and Health, Center of Physical Education and Sports, Londrina State University - UEL, Highway Celso Garcia Cid, Km 380, University Campus, P.O. box 6001, 86051-990, Londrina, Paraná, Brazil
- Federal University of Mato Grosso do Sul - UFMS, Mato Grosso do Sul, Campo Grande, Brazil
| | - Gabriela Blasquez-Shigaki
- Laboratory of Physical Activity and Health, Center of Physical Education and Sports, Londrina State University - UEL, Highway Celso Garcia Cid, Km 380, University Campus, P.O. box 6001, 86051-990, Londrina, Paraná, Brazil
| | - Rômulo Araújo Fernandes
- Department of Physical Education, Exercise Research Laboratory (LIVE), Faculdade de Ciências e Tecnologia, State São Paulo University - UNESP, Presidente Prudente, São Paulo, Brazil
| | - Diogo V Martinho
- Faculty of Sports Sciences and Physical Education, University of Coimbra, Coimbra, Portugal
| | - Tomás Oliveira
- Faculty of Sports Sciences and Physical Education, University of Coimbra, Coimbra, Portugal
| | - Luís P Ribeiro
- Faculty of Sports Sciences and Physical Education, University of Coimbra, Coimbra, Portugal
- University of Algarve, Faro, Portugal
| | | | - Enio Ricardo Vaz Ronque
- Laboratory of Physical Activity and Health, Center of Physical Education and Sports, Londrina State University - UEL, Highway Celso Garcia Cid, Km 380, University Campus, P.O. box 6001, 86051-990, Londrina, Paraná, Brazil
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Physical Activity Behaviors and Physical Work Capacity in University Students during the COVID-19 Pandemic. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19020891. [PMID: 35055712 PMCID: PMC8776174 DOI: 10.3390/ijerph19020891] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 02/01/2023]
Abstract
Objective. The COVID-19 pandemic led to restricted access to sports and recreation facilities, resulting in a general decrease in physical activity. Many studies present the results of on-line questionnaires conducted during the pandemic, but there are few reports of objectively measured indicators of physical condition. Thus, the objective of this study was to assess the changes in physical work capacity, body composition, and physical activity behaviors in university students during 14 weeks of lockdown. Material and Methods. Twenty students of Tourism and Recreation (13 female and 7 male) participated in the study. The first examination was conducted in November 2020, and the second in March 2021. Body composition was assessed with a Tanita 418 MA device. The students performed the PWC 170 cycling test and completed the International Physical Activity Questionnaire (short version) on-line. Results. Neither physical work capacity nor body composition parameters changed substantially during the analyzed period. In the female students, vigorous physical activity decreased significantly, but no substantial changes occurred in weekly metabolic equivalent of task. In male students, walking days and metabolic equivalent of task decreased, but the changes were not significant. Conclusions. Fourteen weeks of COVID-19 lockdown had little effect on the body composition, physical work capacity level, and physical activity habits of Tourism and Recreation students. Studies with larger groups of participants should verify the current conclusions, and care should be taken when extrapolating to other populations.
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TİMURTAŞ E, ÇINAR E, KARABACAK N, DEMİRBÜKEN İ, POLAT MG. ASSOCIATION OF PHYSICAL FITNESS INDICATORS WITH HEALTH PROFILE AND LIFESTYLE OF CHILDREN. CLINICAL AND EXPERIMENTAL HEALTH SCIENCES 2021. [DOI: 10.33808/clinexphealthsci.776067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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García-Hermoso A, Ramírez-Vélez R, García-Alonso Y, Alonso-Martínez AM, Izquierdo M. Association of Cardiorespiratory Fitness Levels During Youth With Health Risk Later in Life: A Systematic Review and Meta-analysis. JAMA Pediatr 2020; 174:952-960. [PMID: 32870243 PMCID: PMC7489376 DOI: 10.1001/jamapediatrics.2020.2400] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
IMPORTANCE Although the associations between cardiorespiratory fitness (CRF) and health in adults are well understood, to date, no systematic review has quantitatively examined the association between CRF during youth and health parameters later in life. OBJECTIVES To examine the prospective association between CRF in childhood and adolescence and future health status and to assess whether changes in CRF are associated with future health status at least 1 year later. DATA SOURCES For this systematic review and meta-analysis, MEDLINE, Embase, and SPORTDiscus electronic databases were searched for relevant articles published from database inception to January 30, 2020. STUDY SELECTION The following inclusion criteria were used: CRF measured using a validated test and assessed at baseline and/or its change from baseline to the end of follow-up, healthy population with a mean age of 3 to 18 years at baseline, and prospective cohort design with a follow-up period of at least 1 year. DATA EXTRACTION AND SYNTHESIS Data were processed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Random-effects models were used to estimate the pooled effect size. MAIN OUTCOMES AND MEASURES Anthropometric and adiposity measurements and cardiometabolic health parameters. RESULTS Fifty-five studies were included with a total of 37 563 youths (46% female). Weak-moderate associations were found between CRF at baseline and body mass index (r = -0.11; 95% CI, -0.18 to -0.04; I2 = 59.03), waist circumference (r = -0.29; 95% CI, -0.42 to -0.14; I2 = 69.42), skinfold thickness (r = -0.34; 95% CI, -0.41 to -0.26; I2 = 83.87), obesity (r = -0.15; 95% CI, -0.23 to -0.06; I2 = 86.75), total cholesterol level (r = -0.12; 95% CI, -0.19 to -0.05; I2 = 75.81), high-density lipoprotein cholesterol (HDL-C) level (r = 0.11; 95% CI, 0.05-0.18; I2 = 69.06), total cholesterol to HDL-C ratio (r = -0.19; 95% CI, -0.26 to -0.13; I2 = 67.07), triglyceride levels (r = -0.10; 95% CI, -0.18 to -0.02; I2 = 73.43), homeostasis model assessment for insulin resistance (r = -0.12; 95% CI, -0.18 to -0.06; I2 = 68.26), fasting insulin level (r = -0.07; 95% CI, -0.11 to -0.03; I2 = 0), and cardiometabolic risk (r = -0.18; 95% CI, -0.29 to -0.07; I2 = 90.61) at follow-up. Meta-regression analyses found that early associations in waist circumference (β = 0.014; 95% CI, 0.002-0.026), skinfold thickness (β = 0.006; 95% CI, 0.002-0.011), HDL-C level (β = -0.006; 95% CI, -0.011 to -0.001), triglyceride levels (β = 0.009; 95% CI, 0.004-0.014), and cardiometabolic risk (β = 0.007; 95% CI, 0.003-0.011) from baseline to follow-up dissipated over time. Weak-moderate associations were found between change in CRF and body mass index (r = -0.17; 95% CI, -0.24 to -0.11; I2 = 39.65), skinfold thickness (r = -0.36; 95% CI, -0.58 to -0.09; I2 = 96.84), obesity (r = -0.21; 95% CI, -0.35 to -0.06; I2 = 91.08), HDL-C level (r = 0.05; 95% CI, 0.02-0.08; I2 = 0), low-density lipoprotein cholesterol level (r = -0.06; 95% CI, -0.11 to -0.01; I2 = 58.94), and cardiometabolic risk (r = -0.08; 95% CI, -0.15 to -0.02; I2 = 69.53) later in life. CONCLUSIONS AND RELEVANCE This study suggests that early intervention and prevention strategies that target youth CRF may be associated with maintaining health parameters in later life.
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Affiliation(s)
- Antonio García-Hermoso
- Navarrabiomed, Complejo Hospitalario de Navarra, Universidad Pública de Navarra, Navarra Institute for Health Research (IdiSNA), Pamplona, Spain,Laboratorio de Ciencias de la Actividad Física, el Deporte y la Salud, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago, Chile
| | - Robinson Ramírez-Vélez
- Navarrabiomed, Complejo Hospitalario de Navarra, Universidad Pública de Navarra, Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Yesenia García-Alonso
- Navarrabiomed, Complejo Hospitalario de Navarra, Universidad Pública de Navarra, Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Alicia M. Alonso-Martínez
- Navarrabiomed, Complejo Hospitalario de Navarra, Universidad Pública de Navarra, Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Mikel Izquierdo
- Navarrabiomed, Complejo Hospitalario de Navarra, Universidad Pública de Navarra, Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
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García-Hermoso A, Ramírez-Campillo R, Izquierdo M. Is Muscular Fitness Associated with Future Health Benefits in Children and Adolescents? A Systematic Review and Meta-Analysis of Longitudinal Studies. Sports Med 2020; 49:1079-1094. [PMID: 30953308 DOI: 10.1007/s40279-019-01098-6] [Citation(s) in RCA: 248] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND No previous systematic review has quantitatively examined the association between muscular fitness during childhood and adolescence and health parameters later in life. OBJECTIVE The aim was to systematically review and meta-analyze the current evidence for a prospective association between muscular fitness in childhood and adolescence and future health status. METHODS Two authors systematically searched MEDLINE, EMBASE and SPORTDiscus electronic databases and conducted manual searching of reference lists of selected articles. Relevant articles were identified by the following criteria: apparently healthy children and adolescents aged 3-18 years with muscular fitness assessed at baseline (e.g., handgrip, standing long jump, sit-ups, among others), and a follow-up period of ≥ 1 year. The outcome measures were anthropometric and adiposity measurements and cardiometabolic, bone and musculoskeletal health parameters. Two authors independently extracted data. RESULTS Thirty studies were included in the meta-analysis, yielding a total of 21,686 participants. The meta-analysis found a significant, moderate-large (p < 0.05) effect size between muscular fitness at baseline and body mass index (r = - 0.14; 95% confidence interval (CI) - 0.21 to - 0.07), skinfold thickness (r = - 0.32; 95% CI - 0.40 to - 0.23), homeostasis model assessment estimated insulin resistance (r = - 0.10; 95% CI - 0.16 to - 0.05), triglycerides (r = - 0.22; 95% CI - 0.30 to - 0.13), cardiovascular disease risk score (r = - 0.29; 95% CI - 0.39 to - 0.18), and bone mineral density (r = 0.166; 95% CI 0.086 to 0.243) at follow-up. CONCLUSION A prospective negative association was observed between muscular fitness in childhood/adolescence and adiposity and cardiometabolic parameters in later life, together with a positive association for bone health. There is inconclusive evidence for low back pain benefits.
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Affiliation(s)
- Antonio García-Hermoso
- Navarrabiomed, IdiSNa, Pamplona, Navarra, Spain. .,Laboratorio de Ciencias de la Actividad Física, el Deporte y la Salud, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, USACH, Santiago, Chile.
| | - Rodrigo Ramírez-Campillo
- Laboratory of Human Performance, Quality of Life and Wellness Research Group, Department of Physical Activity Sciences, Universidad de Los Lagos (University of Los Lagos), Osorno, Chile
| | - Mikel Izquierdo
- Navarrabiomed, IdiSNa, Pamplona, Navarra, Spain.,Department of Health Sciences, Public University of Navarre, CIBER of Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, Pamplona, Navarra, Spain
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Barbosa CCL, Romanzini CLP, Batista MB, Fernandes RA, Romanzini M, Kemper H, Coelho-E-Silva MJ, Ronque ERV. NEUROMUSCULAR FITNESS IN EARLY LIFE AND ITS IMPACT ON BONE HEALTH IN ADULTHOOD: A SYSTEMATIC REVIEW. ACTA ACUST UNITED AC 2020; 38:e2019119. [PMID: 32159647 PMCID: PMC7063593 DOI: 10.1590/1984-0462/2020/38/2019119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 07/30/2019] [Indexed: 08/30/2023]
Abstract
Objective: To systematically review the literature to verify the relationship between
neuromuscular fitness indicators in childhood/adolescence and bone strength
variables in adulthood. Data sources: A systematic review was conducted in PUBMED, SCOPUS, SPORTDiscus, Web of
Science, PsycINFO, LILACS, and SciELO, covering the entire period until
March 2019. Data synthesis: The search identified 1149 studies. After duplicity analysis and eligibility
criteria, four studies were reported. In one study, baseline was childhood
and, in the others, adolescence. In childhood, when adjusting the model for
age and body mass index, a statistically significant relation was found for
girls: standing long jump with quantitative ultrasound index (β=0.11;
p<0.05) and with speed of sound (β=0.14; p<0.01). However, when
controlling muscular performance in adulthood, the relationship was no
longer significant. In adolescence, coefficients ranged from 0.16 for
neuromotor battery and bone mineral density (BMD) in the lumbar region to
0.38 for hanging leg lift test and BMD of arms. The explained variance
varied between 2% (bent arm hang for BMD total) and 12% (hanging leg-lift
for BMD arms), therefore, a higher performance in neuromuscular fitness in
adolescence was associated with better bone strength in adulthood. Conclusions: In adults, bone strength variables showed significant correlation from low
to moderate magnitude with neuromuscular fitness indicators in adolescence,
but not in childhood, after controlling for adult performance in
neuromuscular fitness. However, there is limited evidence to support the
neuromuscular fitness in early life as a determinant of bone strength in
adulthood.
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Affiliation(s)
| | | | | | | | - Marcelo Romanzini
- Laboratório de Atividade Física e Saúde, Universidade Estadual de Londrina, PR, Brazil
| | - Han Kemper
- Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
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Muscular Fitness Mediates the Association between 25-Hydroxyvitamin D and Areal Bone Mineral Density in Children with Overweight/Obesity. Nutrients 2019; 11:nu11112760. [PMID: 31739435 PMCID: PMC6893626 DOI: 10.3390/nu11112760] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/31/2019] [Accepted: 11/11/2019] [Indexed: 12/29/2022] Open
Abstract
The association between vitamin D [25(OH)D] and bone health has been widely studied in children. Given that 25(OH)D and bone health are associated with muscular fitness, this could be the cornerstone to understand this relationship. Hence, the purpose of this work was to examine if the relation between 25(OH)D and areal bone mineral density (aBMD) was mediated by muscular fitness in children with overweight/obesity. Eighty-one children (8-11 years, 53 boys) with overweight/obesity were included. Body composition was measured with dual energy X-ray Absorptiometry (DXA), 25(OH)D was measured in plasma samples and muscular fitness was assessed by handgrip and standing long jump tests (averaged z-scores were used to represent overall muscular fitness). Simple mediation analyses controlling for sex, years from peak height velocity, lean mass and season were carried out. Our results showed that muscular fitness z-score, handgrip strength and standing long jump acted as mediators in the relationship between 25(OH)D and aBMD outcomes (percentages of mediation ranged from 49.6% to 68.3%). In conclusion, muscular fitness mediates the association of 25(OH)D with aBMD in children with overweight/obesity. Therefore, 25(OH)D benefits to bone health could be dependent on muscular fitness in young ages.
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Exercise in Children with Disabilities. CURRENT PHYSICAL MEDICINE AND REHABILITATION REPORTS 2019. [DOI: 10.1007/s40141-019-0213-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Liang X, Wu C, Zhao H, Liu L, Du Y, Li P, Wen Y, Zhao Y, Ding M, Cheng B, Cheng S, Ma M, Zhang L, Guo X, Shen H, Tian Q, Zhang F, Deng HW. Assessing the genetic correlations between early growth parameters and bone mineral density: A polygenic risk score analysis. Bone 2018; 116:301-306. [PMID: 30172743 PMCID: PMC6298225 DOI: 10.1016/j.bone.2018.08.021] [Citation(s) in RCA: 6] [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: 05/08/2018] [Revised: 08/22/2018] [Accepted: 08/29/2018] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The relationships between early growth parameters and bone mineral density (BMD) remain elusive now. In this study, we performed a large scale polygenic risk score (PRS) analysis to evaluate the potential impact of early growth parameters on the variations of BMD. METHODS We used 2286 Caucasian subjects as cohort 1 and 3404 Framingham Heart Study (FHS) subjects as cohort 2 in this study. BMD at ulna & radius, hip and spine were measured using dual energy X-ray absorptiometry. BMD values were adjusted for age, sex, height and weight as covariates. Genome-wide single-nucleotide polymorphism (SNP) genotyping of the 2286 Caucasian subjects was performed using Affymetrix Human SNP Array 6.0. The GWAS datasets of early growth parameters were driven from the Early Growth Genetics Consortium, including birth weight (BW), birth head circumference (BHC), childhood body mass index (CBMI), pubertal height growth related indexes and tanner stage. Polygenic Risk Score (PRSice) and linkage disequilibrium (LD) score regression analysis were conducted to assess the genetic correlation between early growth parameters and BMD. RESULTS We detected significant genetic correlations in cohort 1, such as total spine BMD vs. CBMI (p value = 1.51 × 10-4, rg = 0.4525), right ulna and radius BMD vs. CBMI (p value = 1.51 × 10-4, rg = 0.4399) and total body BMD vs. tanner stage (p value = 7.00 × 10-4, rg = -0.0721). For cohort 2, significant correlations were observed for total spine BMD vs. height change standard deviation score (SDS) between 8 years and adult (denoted as PGF + PGM) (p value = 3.97 × 10-4, rg = -0.1425), femoral neck BMD vs. the timing of peak height velocity by looking at the height change SDS between age 14 years and adult (denoted as PTF + PTM) (p value = 7.04 × 10-4, rg = -0.2185), and total spine BMD vs. PTF + PTM (p value = 6.86 × 10-4, rg = -0.2180). CONCLUSION Our study results suggest that some early growth parameters could affect the variations of BMD.
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Affiliation(s)
- Xiao Liang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - CuiYan Wu
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Hongmou Zhao
- Department of Orthopedics Surgery, Red Cross Hospital, Xi'an 710054, China
| | - Li Liu
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Yanan Du
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Ping Li
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Yan Wen
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Yan Zhao
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Miao Ding
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Bolun Cheng
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Shiqiang Cheng
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Mei Ma
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Lu Zhang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Xiong Guo
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Hui Shen
- Center for Bioinformatics and Genomics, Department of Global Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, USA
| | - Qing Tian
- Center for Bioinformatics and Genomics, Department of Global Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, USA
| | - Feng Zhang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China.
| | - Hong-Wen Deng
- Center for Bioinformatics and Genomics, Department of Global Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, USA.
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Association of adiposity measures in childhood and adulthood with knee cartilage thickness, volume and bone area in young adults. Int J Obes (Lond) 2018; 43:1411-1421. [PMID: 30349008 DOI: 10.1038/s41366-018-0234-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 09/01/2018] [Accepted: 09/06/2018] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To describe the associations of childhood and adulthood adiposity measures with knee cartilage thickness, volume and bone area in young adults. METHODS Childhood and adulthood adiposity measures (weight, height, waist circumference and hip circumference) of 186 participants were collected in 1985 (aged 7-15 years) and during 2004-2006 (aged 26-36 years). Knee magnetic resonance imaging was conducted during 2008-2010 (aged 31-41 years) and cartilage thickness, volume and bone area were measured using a quantitative approach (Chondrometrics, Germany). Linear regressions were used to examine the above associations. RESULTS The prevalence of overweight was 7.6% in childhood and 42.1% in adulthood. Childhood weight (β = - 5.57 mm2/kg) and body mass index (BMI) (β = - 11.55 mm2/kg/m2) were negatively associated with adult patellar bone area, whereas adult weight was positively associated with bone area in medial femorotibial compartment (MFTC) (β = 3.37 mm2/kg) and lateral femorotibial compartment (LFTC) (β = 2.08 mm2/kg). Adult waist-hip ratio (WHR) was negatively associated with cartilage thickness (MFTC: β = - 0.011; LFTC: β = - 0.012 mm/0.01 unit), volume (Patella: β = - 20.97; LFTC: β = - 21.71 mm3/0.01 unit) and bone area (Patella: β = - 4.39 mm2/0.01 unit). The change in WHR z-scores from childhood to adulthood was negatively associated with cartilage thickness (MFTC: β = - 0.056 mm), volume (patella: - 89.95; LFTC: - 93.98 mm3), and bone area (patella: - 20.74 mm2). All p-values < 0.05. CONCLUSIONS Childhood weight and BMI were negatively but adult weight was positively associated with adult bone area. Adult WHR and the change in WHR from childhood to adulthood were negatively associated with cartilage thickness, volume, and bone area. These suggest early-life adiposity measures may affect knee structures in young adults.
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Alghadir AH, Gabr SA, Rizk AA. Physical Fitness, Adiposity, and Diets as Surrogate Measures of Bone Health in Schoolchildren: A Biochemical and Cross-Sectional Survey Analysis. J Clin Densitom 2018; 21:406-419. [PMID: 29657025 DOI: 10.1016/j.jocd.2017.12.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 12/19/2017] [Indexed: 01/19/2023]
Abstract
This study aimed to investigate the associations between adiposity, muscular fitness (MF), diet, sun exposure, and physical activity profiles as surrogate measures with bone health status in a sample of schoolchildren aged 8-18 yr old. A total of 250 Egyptian schoolchildren aged 8-18 yr were randomly invited to participate in these cross-sectional survey analyses. Calcaneal broadband ultrasound attenuation (c-BUA), bone mineral density (BMD), and bone formation markers (total calcium, serum bone alkaline phosphatase, and osteocalcin) were measured as markers of bone health. Adiposity profile, MF, physical activity (PA), sun exposure, Ca, and vitamin D dietary intake as related cofactors of bone health were measured by using prevalidated questionnaires and standard analytical techniques. A total of 85% (n = 213) of the study population showed normal bone health and 14.8% (n = 37) had abnormal bone health; most of them are girls (67.6%) classified according to BMD and c-BUA Z-scores into osteopenia (9.6%) and osteoporosis (5.2%). Compared with boys, higher correlations between c-BUA, bone mineral content, and BMD measures in the femoral neck, lumbar spine, whole body, and bone markers were reported in girls with lower bone mass. There was a positive significant correlation between body mass index, adiposity, sun exposure, MF, PA status, Ca and vitamin D intake, and c-BUA and BMD score analyses. These parameters were shown to be associated with about ~57.3%-88.4% of bone health characteristics of children and adolescents with osteopenia and osteoporosis. In children and adolescents, sun exposure, Ca and vitamin D diets, adiposity, PA, and changes in the levels of Ca, osteocalcin, and serum bone alkaline phosphatase were shown to be associated with bone health. Also, a significant correlation was reported between c-BUA score, dual-energy X-ray absorptiometry-BMD measures, and bone markers at clinically important bone sites of girls and boys. However, further clinical trials should be studied to consider c-BUA and bone markers as the benchmark estimates of bone mass for diagnostic purposes in young ages.
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Affiliation(s)
- Ahmad H Alghadir
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Sami A Gabr
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
| | - Ashraf A Rizk
- Department of Health Science, College of Health Science and physical activity, King Saud University, Riyadh, Saudi Arabia
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14
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Evensen E, Skeie G, Wilsgaard T, Christoffersen T, Dennison E, Furberg AS, Grimnes G, Winther A, Emaus N. How Is Adolescent Bone Mass and Density Influenced by Early Life Body Size and Growth? The Tromsø Study: Fit Futures-A Longitudinal Cohort Study From Norway. JBMR Plus 2018; 2:268-280. [PMID: 30283908 PMCID: PMC6139726 DOI: 10.1002/jbm4.10049] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 03/13/2018] [Accepted: 03/26/2018] [Indexed: 01/21/2023] Open
Abstract
The effect of birth weight and childhood body mass index (BMI) on adolescents’ bone parameters is not established. The aim of this longitudinal, population‐based study was to investigate the association of birth weight, childhood BMI, and growth, with adolescent bone mass and bone density in a sample of 633 adolescents (48% girls) from The Tromsø Study: Fit Futures. This population‐based cohort study was conducted in 2010–2011 and 2012–2013 in Tromsø, Norway. Bone mineral content (BMC) and areal BMD (aBMD) were measured at total hip (TH) and total body (TB) by dual‐energy X‐ray absorptiometry (DXA) and converted to internal Z‐scores. Birth weight and childhood anthropometric measurements were retrospectively obtained from the Medical Birth Registry of Norway and childhood health records. Associations between birth weight, BMI, and growth were evaluated by fitting linear mixed models with repeated measures of BMC and aBMD at ages 15 to 17 and 18 to 20 years as the outcome. In crude analysis, a significant positive association (p < 0.05) with TB BMC was observed per 1 SD score increase in birth weight, observed in both sexes. Higher rate of length growth, conditioned on earlier size, from birth to age 2.5 years, and higher rate of weight gain from ages 6.0 to 16.5 years, conditioned on earlier size and concurrent height growth, revealed stronger associations with bone accrual at ages 15 to 20 years compared with other ages. Compared with being normal weight, overweight/obesity at age 16.5 years was associated with higher aBMD Z‐scores: β coefficient (95% confidence interval [CI]) of 0.78 (0.53, 1.03) and 1.08 (0.85, 1.31) in girls, 0.63 (0.42, 0.85) and 0.74 (0.54, 0.95) in boys at TH and TB, respectively. Similar associations were found for BMC. Being underweight was consistently negatively associated with bone parameters in adolescence. In conclusion, birth weight influences adolescent bone mass but less than later growth and BMI in childhood and adolescence. © 2018 The Authors. JBMR Plus Published by Wiley Periodicals, Inc. on behalf of the American Society for Bone and Mineral Research
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Affiliation(s)
- Elin Evensen
- Department of Clinical Research University Hospital of North Norway Tromsø Norway.,Department of Health and Care Sciences Faculty of Health Sciences UiT The Arctic University of Norway Tromsø Norway
| | - Guri Skeie
- Department of Community Medicine Faculty of Health Sciences UiT The Arctic University of Norway Tromsø Norway
| | - Tom Wilsgaard
- Department of Clinical Research University Hospital of North Norway Tromsø Norway.,Department of Community Medicine Faculty of Health Sciences UiT The Arctic University of Norway Tromsø Norway
| | - Tore Christoffersen
- Department of Health and Care Sciences Faculty of Health Sciences UiT The Arctic University of Norway Tromsø Norway.,Finnmark Hospital Trust Alta Norway
| | - Elaine Dennison
- MRC Lifecourse Epidemiology Unit Southampton UK.,Victoria University Wellington New Zealand
| | - Anne-Sofie Furberg
- Department of Community Medicine Faculty of Health Sciences UiT The Arctic University of Norway Tromsø Norway.,Department of Microbiology and Infection Control University Hospital of North Norway Tromsø Norway
| | - Guri Grimnes
- Endocrinology Research Group Institute of Clinical Medicine UiT The Arctic University of Norway Tromsø Norway.,Division of Internal Medicine University Hospital of North Norway Tromsø Norway
| | - Anne Winther
- Division of Neurosciences Orthopedics, and Rehabilitation Services University Hospital of North Norway Tromsø Norway
| | - Nina Emaus
- Department of Health and Care Sciences Faculty of Health Sciences UiT The Arctic University of Norway Tromsø Norway
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15
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Santos DA, Marques A, Minderico CS, Ekelund U, Sardinha LB. A cross-sectional and prospective analyse of reallocating sedentary time to physical activity on children's cardiorespiratory fitness. J Sports Sci 2017; 36:1720-1726. [PMID: 29192846 DOI: 10.1080/02640414.2017.1411176] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Cardiorespiratory fitness (CRF) is associated with health benefits in children, improving cardiac morphology, cardiovascular disease risk factors, and biological outcomes. This study aimed to examine the substitution effects of displaying a fixed duration of sedentary time with a fixed duration of physical activity (PA) at different intensities on children's CRF. A total of 315 children (136 boys) were assessed (age: 10.6 ± 0.6 years old). Outcomes at baseline and follow-up (16-months) were CRF determined using a maximal cycle test and sedentary time and PA measured with accelerometers. Data were analysed by isotemporal substitution analyses estimating the effect of reallocating 30 min/day of sedentary time by light (LPA), moderate (MPA) and vigorous physical activity (VPA) on CRF. VPA was positively and significantly associated with CRF cross-sectional (β = 0.026, p < 0.001) and prospectively (β = 0.010, p < 0.001). Reallocating 30 min/day of sedentary time into VPA was positively cross-sectionally (β = 0.780, p < 0.001) and prospectively (β = 0.303, p < 0.05) associated with CRF. Conversely, relocating 30-minutes of sedentary time into 30 minutes of LPA and MPA was not associated with CRF. These results suggest that reallocating an equal amount of time from sedentary into VPA is cross-sectional and prospectively associated with a favourable CRF.
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Affiliation(s)
- Diana A Santos
- a CIPER, Exercise and Health Laboratory, Faculdade de Motricidade Humana , Universidade de Lisboa , Lisboa , Portugal
| | - Adilson Marques
- b Centro Interdisciplinar de Estudo da Performance Humana, Faculdade de Motricidade Humana , Universidade de Lisboa , Lisboa , Portugal
| | - Cláudia S Minderico
- a CIPER, Exercise and Health Laboratory, Faculdade de Motricidade Humana , Universidade de Lisboa , Lisboa , Portugal
| | - Ulf Ekelund
- c Department of Sport Medicine , Norwegian School of Sport Sciences , Oslo , Norway
| | - Luís B Sardinha
- a CIPER, Exercise and Health Laboratory, Faculdade de Motricidade Humana , Universidade de Lisboa , Lisboa , Portugal
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Fraser BJ, Huynh QL, Schmidt MD, Dwyer T, Venn AJ, Magnussen CG. Childhood Muscular Fitness Phenotypes and Adult Metabolic Syndrome. Med Sci Sports Exerc 2017; 48:1715-22. [PMID: 27128670 DOI: 10.1249/mss.0000000000000955] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
PURPOSE The objective of this study is to determine whether childhood muscular fitness phenotypes (strength, endurance, and power) are independently associated with adult metabolic syndrome (MetS). METHODS We conducted a longitudinal study including 737 participants who had muscular fitness measures in 1985 when age 9, 12, or 15 yr and attended follow-up in young adulthood 20 yr later when measures of MetS were collected. Childhood measures of muscular fitness included strength (right and left grip, leg, and shoulder extension and flexion), endurance (number of push-ups in 30 s), and power (distance of a standing long jump). A muscular fitness score was created using all individual muscular fitness phenotypes. In adulthood, waist circumference, blood pressure, HDL cholesterol, triglycerides, and glucose were measured. Adult outcomes were MetS defined using the harmonized definition and a continuous MetS risk score. RESULTS Participants with childhood muscular strength, muscular power, and combined muscular fitness score in the highest third had significantly lower relative risk (RR) for MetS and a lower continuous MetS score in adulthood independent of cardiorespiratory fitness than those in the lowest third (strength: RR = 0.21 (0.09, 0.49) β = -0.46 (-0.59, -0.34) power: RR = 0.26 (0.12, 0.60), β = -0.36 (-0.49, -0.23) fitness score: RR = 0.20 (0.09, 0.47), β = -0.45 (-0.58, -0.33)). However, adjustment for childhood waist circumference reduced the effect sizes for both adult outcomes by 17%-60%. CONCLUSION Phenotypes of childhood muscular fitness can be used to predict adult MetS independent of cardiorespiratory fitness. Although a large proportion of the effect of childhood muscular fitness on adult MetS is potentially being mediated by child waist circumference, these data suggest that promotion of muscular fitness among children might provide additional protection against developing adult MetS.
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Affiliation(s)
- Brooklyn J Fraser
- 1Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, AUSTRALIA; 2Department of Kinesiology, University of Georgia, Athens, GA; 3George Institute for Global Health, Oxford Martin School and Nuffield Department of Obstetrics and Gynaecology, Oxford University, Oxford, England, UNITED KINGDOM; and 4Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, FINLAND
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Forero-Bogotá MA, Ojeda-Pardo ML, García-Hermoso A, Correa-Bautista JE, González-Jiménez E, Schmidt-RíoValle J, Navarro-Pérez CF, Gracia-Marco L, Vlachopoulos D, Martínez-Torres J, Ramírez-Vélez R. Body Composition, Nutritional Profile and Muscular Fitness Affect Bone Health in a Sample of Schoolchildren from Colombia: The Fuprecol Study. Nutrients 2017; 9:E106. [PMID: 28165360 PMCID: PMC5331537 DOI: 10.3390/nu9020106] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 12/05/2016] [Accepted: 12/13/2016] [Indexed: 01/19/2023] Open
Abstract
The objective of the present study is to investigate the relationships between body composition, nutritional profile, muscular fitness (MF) and bone health in a sample of children and adolescents from Colombia. Participants included 1118 children and adolescents (54.6% girls). Calcaneal broadband ultrasound attenuation (c-BUA) was obtained as a marker of bone health. Body composition (fat mass and lean mass) was assessed using bioelectrical impedance analysis. Furthermore height, weight, waist circumference and Tanner stage were measured and body mass index (BMI) was calculated. Standing long-jump (SLJ) and isometric handgrip dynamometry were used respectively as indicators of lower and upper body muscular fitness. A muscular index score was also computed by summing up the standardised values of both SLJ and handgrip strength. Dietary intake and degree of adherence to the Mediterranean diet were assessed by a 7-day recall questionnaire for food frequency and the Kidmed questionnaire. Poor bone health was considered using a z-score cut off of ≤-1.5 standard deviation. Once the results were adjusted for age and Tanner stage, the predisposing factors of having a c-BUA z-score ≤-1.5 standard deviation included being underweight or obese, having an unhealthy lean mass, having an unhealthy fat mass, SLJ performance, handgrip performance, and unhealthy muscular index score. In conclusion, body composition (fat mass and lean body mass) and MF both influenced bone health in a sample of children and adolescents from Colombia. Thus promoting strength adaptation and preservation in Colombian youth will help to improve bone health, an important protective factor against osteoporosis in later life.
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Affiliation(s)
- Mónica Adriana Forero-Bogotá
- Centro de Estudios para la Medición de la Actividad Física (CEMA), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogota DC 111221, Colombia.
| | - Mónica Liliana Ojeda-Pardo
- Centro de Estudios para la Medición de la Actividad Física (CEMA), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogota DC 111221, Colombia.
| | - Antonio García-Hermoso
- Laboratorio de Ciencias de la Actividad Física, el Deporte y la Salud, Universidad de Santiago de Chile, USACH, Región Metropolitana, Santiago 7500618, Chile.
| | - Jorge Enrique Correa-Bautista
- Centro de Estudios para la Medición de la Actividad Física (CEMA), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogota DC 111221, Colombia.
| | - Emilio González-Jiménez
- Departamento de Enfermería, Facultad de Ciencias de la Salud Avda, De la Ilustración, s/n, (18016), Universidad de Granada, Granada 18071, Spain.
- Grupo CTS-436, Adscrito al Centro de Investigación Mente, Cerebro y Comportamiento (CIMCYC), Universidad de Granada, Granada 18071, Spain.
| | - Jacqueline Schmidt-RíoValle
- Departamento de Enfermería, Facultad de Ciencias de la Salud Avda, De la Ilustración, s/n, (18016), Universidad de Granada, Granada 18071, Spain.
- Grupo CTS-436, Adscrito al Centro de Investigación Mente, Cerebro y Comportamiento (CIMCYC), Universidad de Granada, Granada 18071, Spain.
| | - Carmen Flores Navarro-Pérez
- Departamento de Enfermería, Facultad de Ciencias de la Salud Avda, De la Ilustración, s/n, (18016), Universidad de Granada, Granada 18071, Spain.
- Grupo CTS-436, Adscrito al Centro de Investigación Mente, Cerebro y Comportamiento (CIMCYC), Universidad de Granada, Granada 18071, Spain.
| | - Luis Gracia-Marco
- Children's Health and Exercise Research Centre (CHERC), Sport and Health Sciences, University of Exeter, Exeter EX1 2LU, UK.
- GENUD "Growth, Exercise, Nutrition and Development" Research Group, University of Zaragoza, Zaragoza 50009, Spain.
| | - Dimitris Vlachopoulos
- Children's Health and Exercise Research Centre (CHERC), Sport and Health Sciences, University of Exeter, Exeter EX1 2LU, UK.
| | - Javier Martínez-Torres
- Grupo GICAEDS, Facultad de Cultura Física, Deporte y Recreación, Universidad Santo Tomás, Bogotá DC 111221, Colombia.
| | - Robinson Ramírez-Vélez
- Centro de Estudios para la Medición de la Actividad Física (CEMA), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogota DC 111221, Colombia.
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Gomes KB, Perez AJ, Carletti L, Marques A. Heart rate as an indicator for exercise prescription for normal, overweight, and obese adolescents. MOTRIZ: REVISTA DE EDUCACAO FISICA 2016. [DOI: 10.1590/s1980-6574201600020004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Antony B, Venn A, Cicuttini F, March L, Blizzard L, Dwyer T, Cross M, Jones G, Ding C. Association of physical activity and physical performance with tibial cartilage volume and bone area in young adults. Arthritis Res Ther 2015; 17:298. [PMID: 26503530 PMCID: PMC4623258 DOI: 10.1186/s13075-015-0813-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 10/08/2015] [Indexed: 11/20/2022] Open
Abstract
Introduction Physical activity has been recommended to patients with knee osteoarthritis for improving their symptoms. However, it is still controversial if physical activity has effects on joint structures including cartilage volume. The aim of this study was to describe the associations between physical activity and performance measured 5 years prior and tibial cartilage volume and bone area in young adults. Methods Subjects broadly representative of the Australian population (n = 328, aged 31–41 years, female 47.3 %) were selected from the Childhood Determinants of Adult Health study. They underwent T1-weighted fat-suppressed magnetic resonance imaging (MRI) scans of their knees. Tibial bone area and cartilage volume were measured from MRI. Physical activity (measured using long international physical activity questionnaire (IPAQ)) and performance measures (long jump, leg muscle strength, physical work capacity (PWC170)) were measured 5 years prior. Results In multivariable analyses, total physical activity (min/week) (β: 0.30 mm3, 95 % CI: 0.13,0.47), vigorous (β: 0.54 mm3, 95 % CI: 0.13,0.94), moderate (β: 0.34 mm3, 95 % CI: 0.01,0.67), walking (β: 0.40 mm3, 95 % CI: 0.07,0.72) and IPAQ category (β: 182.9 mm3, 95 % CI: 51.8,314.0) were positively associated with total tibial cartilage volume but not tibial bone area. PWC170, long jump and leg muscle strength were positively and significantly associated with both total tibial cartilage volume and total tibial bone area; and the associations with tibial cartilage volume decreased in magnitude but remained significant for PWC170 and long jump after further adjustment for tibial bone area. Conclusion While tibial bone area is affected only by physical performance, total tibial cartilage volume can be influenced by both physical activity and performance in younger adults. The clinical significance suggests a beneficial effect for cartilage but the bone area association was restricted to performance suggesting other factors rather than physical activity may be important.
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Affiliation(s)
- Benny Antony
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia.
| | - Alison Venn
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia.
| | - Flavia Cicuttini
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia.
| | - Lyn March
- Institute of Bone and Joint Research, University of Sydney, Sydney, Australia.
| | - Leigh Blizzard
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia.
| | - Terence Dwyer
- Murdoch Childrens Research Institute, Melbourne, Australia.
| | - Marita Cross
- Institute of Bone and Joint Research, University of Sydney, Sydney, Australia.
| | - Graeme Jones
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia.
| | - Changhai Ding
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia. .,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia.
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20
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Marques A, Santos R, Ekelund U, Sardinha LB. Association between physical activity, sedentary time, and healthy fitness in youth. Med Sci Sports Exerc 2015; 47:575-80. [PMID: 24977696 DOI: 10.1249/mss.0000000000000426] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE This study aimed to examine the associations between objectively measured physical activity (PA), sedentary time, and health-related fitness and to investigate the combined association of PA and sedentary time on health-related fitness in youths. METHODS PA and sedentary time were assessed with accelerometers in 2506 youths age 10-18 yr (M(age) = 13.2 ± 2.3). Participants were classified as active (≥60 min·d(-1) of moderate-to-vigorous physical activity (MVPA)) versus inactive (<60 min·d(-1) of MVPA) and as "low sedentary" versus "high sedentary" (according to the median value of sedentary time per day) and thereafter grouped as active/low sedentary, active/high sedentary, inactive/low sedentary, and inactive/high sedentary. Five physical fitness tests (body mass index, push-ups, curl-ups, sit and reach, and the Progressive Aerobic Cardiovascular Endurance Run test) were assessed with FITNESSGRAM, and participants were categorized as being in the healthy fitness zone (HFZ) versus the unhealthy fitness zone. A fitness composite score was calculated using the individual fitness test z-score. Regression models were used to examine the relation between PA, sedentary time, and physical fitness. RESULTS Time spent in MVPA (min·d(-1)) (β = 0.002, P < 0.001) was significantly associated with fitness score independent of sedentary time. Sedentary time was not associated with physical fitness independent of MVPA. Compared with the inactive/high sedentary group (referent), being categorized as active/low sedentary was associated with increased likelihood of being in the HFZ for sit and reach (odds ratio, 2.55; 95% confidence interval, 1.96-3.32) and having a higher fitness composite score (odds ratio, 1.38; 95% confidence interval, 1.13-1.69). CONCLUSIONS Time in MVPA was associated with better physical fitness independent of sedentary time. Participants classified as active/low sedentary had higher odds of being in the HFZ, for flexibility, and to have a better fitness composite score. These findings suggest that time in MVPA contributes to better physical fitness in youths.
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Affiliation(s)
- Adilson Marques
- 1Centro de Estudos de Educação e Promoção da Saúde, CIPER, Fac Motricidade Humana, Univ Lisboa, Cruz-Quebrada, PORTUGAL; 2Maia Institute of Higher Education (CIDAF), Maia, PORTUGAL; 3Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, PORTUGAL; 4Department of Sport Medicine, Norwegian School of Sport Sciences, NORWAY; 5MRC Epidemiology Unit, University of Cambridge, Cambridge, UNITED KINGDOM; and 6Exercise and Health Laboratory, CIPER, Fac Motricidade Humana, Univ Lisboa, Cruz-Quebrada, PORTUGAL
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Antony B, Jones G, Venn A, Cicuttini F, March L, Blizzard L, Dwyer T, Cross M, Ding C. Childhood Physical Performance Measures and Adulthood Knee Cartilage Volume and Bone Area: A 25‐Year Cohort Study. Arthritis Care Res (Hoboken) 2015; 67:1263-1271. [DOI: 10.1002/acr.22588] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
| | | | - Alison Venn
- University of TasmaniaHobart Tasmania Australia
| | | | - Lyn March
- University of SydneySydney New South Wales Australia
| | | | - Terence Dwyer
- Murdoch Childrens Research InstituteMelbourne Victoria Australia
| | - Marita Cross
- University of SydneySydney New South Wales Australia
| | - Changhai Ding
- University of Tasmania, Hobart, Tasmania, and Monash UniversityMelbourne Victoria Australia
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The combined effect of physical activity and sedentary behaviors on a clustered cardio-metabolic risk score: The Helena study. Int J Cardiol 2015; 186:186-95. [PMID: 25828110 DOI: 10.1016/j.ijcard.2015.03.176] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 02/09/2015] [Accepted: 03/16/2015] [Indexed: 01/26/2023]
Abstract
BACKGROUND/OBJECTIVE Increased physical activity (PA) and decreased sedentary behaviors (SBs) may have beneficial effects on cardio-metabolic risk in adolescents. The aim of this study was to examine the associations between independent/combined effects of PA and SB with individual/clustered cardio-metabolic risk factors. METHODS A sample of 769 adolescents (12.5-17.5 years) from the HELENA cross-sectional study (Healthy Lifestyle in Europe by Nutrition in Adolescence) and with valid data on metabolic risk factors were included. RESULTS Concerning moderate-to-vigorous-PA (MVPA) and vigorous-PA (VPA), measured with accelerometers, girls tended to do more MVPA (36%) and VPA (114%) than boys. Unadjusted analyses show a positive association between "PA ≥ 60 min/d; SB ≥ 2 h" and the ratio TC/HDL-c (β = 0.27; 95%CI 0.01 to 0.52; p < 0.05), and a negative association between "MVPA ≥ 60 min/d; SB < 2h" with the ∑ 4Skinfolds (β = -0.32; 95%CI -0.61 to -0.02; p<0.05). Moreover, "SB ≥ 2 h/d" was associated with increased cardio-metabolic risk (PR 1.59; 95%CI 1.05 to 2.39; p < 0.05), while "PA ≥ 60 min/d; SB < 2h" had a protective effect against cardio-metabolic risk (PR 0.48; 95%CI 0.25 to 0.91; p < 0.05). After adjustment for potential confounders, a positive association between SB and ∑ 4Skinfolds was shown (β = 0.28; 95%CI 0.04 to 0.53; p < 0.05). Furthermore, VO2max (mL/kg/min) tends to increase in those participants who do higher VPA and less SB (p = 0.042), and there was a protective effect of "VPA ≥ 30 min/d; SB < 2h" against cardio-metabolic risk (PR 0.24; 95%CI 0.07 to 0.85; p < 0.05). CONCLUSION The current study suggests that adolescents should be encouraged to decrease sedentary lifestyle and increase physical activity, especially vigorous physical activity, in order to reduce cardio-metabolic risk.
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Ebeling PR, Daly RM, Kerr DA, Kimlin MG. Building healthy bones throughout life: an evidence-informed strategy to prevent osteoporosis in Australia. Med J Aust 2015; 199:S1-S46. [PMID: 25370432 DOI: 10.5694/j.1326-5377.2013.tb04225.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 12/02/2012] [Indexed: 12/14/2022]
Abstract
Osteoporosis imposes a tremendous burden on Australia: 1.2 million Australians have osteoporosis and 6.3 million have osteopenia. In the 2007–08 financial year, 82 000 Australians suffered fragility fractures, of which > 17 000 were hip fractures. In the 2000–01 financial year, direct costs were estimated at $1.9 billion per year and an additional $5.6 billion on indirect costs. Osteoporosis was designated a National Health Priority Area in 2002; however, implementation of national plans has not yet matched the rhetoric in terms of urgency. Building healthy bones throughout life, the Osteoporosis Australia strategy to prevent osteoporosis throughout the life cycle, presents an evidence-informed set of recommendations for consumers, health care professionals and policymakers. The strategy was adopted by consensus at the Osteoporosis Australia Summit in Sydney, 20 October 2011. Primary objectives throughout the life cycle are: to maximise peak bone mass during childhood and adolescence to prevent premature bone loss and improve or maintain muscle mass, strength and functional capacity in healthy adults to prevent and treat osteoporosis in order to minimise the risk of suffering fragility fractures, and reduce falls risk, in older people. The recommendations focus on three affordable and important interventions — to ensure people have adequate calcium intake, vitamin D levels and appropriate physical activity throughout their lives. Recommendations relevant to all stages of life include: daily dietary calcium intakes should be consistent with Australian and New Zealand guidelines serum levels of vitamin D in the general population should be above 50nmol/L in winter or early spring for optimal bone health regular weight-bearing physical activity, muscle strengthening exercises and challenging balance/mobility activities should be conducted in a safe environment.
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Affiliation(s)
- Peter R Ebeling
- NorthWest Academic Centre, University of Melbourne, and Western Health, Melbourne, VIC, Australia.
| | - Robin M Daly
- Centre for Physical Activity and Nutrition Research, Deakin University, Melbourne, VIC, Australia
| | - Deborah A Kerr
- Curtin Health Innovation Research Institute and School of Public Health, Curtin University, Perth, WA, Australia
| | - Michael G Kimlin
- Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
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Sun C, Magnussen CG, Ponsonby AL, Schmidt MD, Carlin JB, Huynh Q, Venn AJ, Dwyer T. The contribution of childhood cardiorespiratory fitness and adiposity to inflammation in young adults. Obesity (Silver Spring) 2014; 22:2598-605. [PMID: 25297830 DOI: 10.1002/oby.20871] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 07/23/2014] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Cardiorespiratory fitness and adiposity may influence cardiovascular risk through their effects on inflammation. The long-term effects of these modifiable factors on adult inflammation remain uncertain. The associations of childhood and adulthood cardiorespiratory fitness and adiposity with adult inflammation [C-reactive protein (CRP), fibrinogen] were examined. METHODS 1,976 children examined in 1985 and re-examined as young adults in 2004-2006 were included. Cardiorespiratory fitness and adiposity were assessed at both waves. CRP and fibrinogen were measured at follow-up. RESULTS Higher childhood fitness was associated with lower adult inflammation in both sexes. After adjusting for childhood adiposity, the association with CRP attenuated in males, but remained in females (average reduction of CRP 18.1% (95% CI 11.3-24.4%) per 1-SD increase in childhood fitness). Higher adult fitness, adjusting for childhood fitness (an increase in fitness from childhood to adulthood), was associated with lower adult CRP in females and lower fibrinogen in males. Higher childhood and adulthood adiposity (an increase in adiposity from childhood to adulthood) were associated with higher adult inflammation in both sexes. CONCLUSIONS Prevention programs to increase fitness and reduce adiposity in childhood, and maintain a favorable fitness and weight into adulthood, may lead to reduction in adult systemic inflammation.
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Affiliation(s)
- Cong Sun
- Environmental and Genetic Epidemiology Research Group, Murdoch Children's Research Institute (MCRI), Royal Children's Hospital, Melbourne, Victoria, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
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Tucker LA, Nokes NR, Bailey BW, Lecheminant JD. Cardiorespiratory Fitness and Hip Bone Mineral Density in Women: A 6-Year Prospective Study. Percept Mot Skills 2014; 119:333-46. [DOI: 10.2466/06.10.pms.119c19z2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Cross-sectional studies and short term interventions focusing on fitness and bone mineral density (BMD) are common. However, few investigations have studied the effect of fitness on BMD over an extended period of time. The present study was conducted to determine the extent to which cardiorespiratory fitness influences risk of BMD loss at the hip over 6 yr. A prospective cohort design was used with 245 healthy, middle-aged women. Hip BMD was assessed using dual energy x-ray absorptiometry. Calcium and vitamin D were measured using the Block Food Frequency Questionnaire. Menopause status was measured by a questionnaire. Results showed that fit and unfit women experienced similar changes in hip BMD over time. Specifically, unfit women experienced a non-significant 7% increased risk of losing hip BMD compared to their counterparts (RR = 1.07, 95% CI = 0.66, 1.73). Adjusting statistically for differences in age, initial body weight, and hip BMD, weight change, menopause status, calcium and vitamin D intake, and time between assessments had little effect on the relationship. Fitness level did not influence risk of hip BMD loss over time.
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Antony B, Jones G, Venn A, Cicuttini F, March L, Blizzard L, Dwyer T, Cross M, Ding C. Association between childhood overweight measures and adulthood knee pain, stiffness and dysfunction: a 25-year cohort study. Ann Rheum Dis 2013; 74:711-7. [PMID: 24347570 DOI: 10.1136/annrheumdis-2013-204161] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To describe the associations between overweight measures in childhood and knee pain, stiffness and dysfunction among adults 25 years later. METHODS Subjects broadly representative of the Australian population (n=449, aged 31-41 years, female 48%) were selected from the Australian Schools Health and Fitness Survey of 1985. Height, weight and knee injury were recorded and knee pain was assessed using the Western Ontario and McMaster Universities osteoarthritis index (WOMAC). Childhood height, weight and knee injury had been measured according to standard protocols 25 years earlier and body mass index (BMI) and percentage overweight were calculated. RESULTS The prevalence of knee pain was 34% and overweight in childhood and adulthood was 7% and 48%, respectively. Overall, there were no significant associations between childhood overweight measures and total WOMAC knee pain, stiffness and dysfunction scores in adulthood. However, in men, overweight in childhood was associated with adulthood WOMAC pain (relative risk (RR) 1.72, 95% CI 1.11 to 2.69) and childhood weight and BMI were associated with WOMAC stiffness and dysfunction. Childhood weight, BMI and overweight were all associated with the presence of adulthood walking knee pain in men and the whole sample. Most of these associations were independent of adult overweight measures. Subjects who were overweight in both childhood and adult life had a significant increase in the risk and prevalence of adulthood walking pain (RR=2.42, 95% CI 1.06 to 5.53). CONCLUSIONS Childhood overweight measures were significantly associated with adulthood knee mechanical joint pain, stiffness and dysfunction among men, independent of adult overweight, suggesting that childhood overweight may lead to later knee symptoms in men.
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Affiliation(s)
- Benny Antony
- Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia
| | - Graeme Jones
- Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia
| | - Alison Venn
- Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia
| | - Flavia Cicuttini
- Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia
| | - Lyn March
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Leigh Blizzard
- Institute of Bone and Joint Research, University of Sydney, Sydney, Australia
| | - Terence Dwyer
- Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia
| | - Marita Cross
- Murdoch Childrens Research Institute, Melbourne, Australia
| | - Changhai Ding
- Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
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Ebeling PR, Daly RM, Kerr DA, Kimlin MG. Building healthy bones throughout life: an evidence‐informed strategy to prevent osteoporosis in Australia. Med J Aust 2013. [DOI: 10.5694/mjao12.11363] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Peter R Ebeling
- NorthWest Academic Centre, University of Melbourne, and Western Health, Melbourne, VIC
| | - Robin M Daly
- Centre for Physical Activity and Nutrition Research, Deakin University, Melbourne, VIC
| | - Deborah A Kerr
- Curtin Health Innovation Research Institute and School of Public Health, Curtin University, Perth, WA
| | - Michael G Kimlin
- Faculty of Health, Queensland University of Technology, Brisbane, QLD
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Abstract
The purpose of this paper is to look at the effects of exercise in the treatment and prevention of osteoporosis in athletes of all age groups. Recommendations for exercise programs will be discussed as a tool to improve bone health. Medical management of osteoporosis will be reviewed mainly as it pertains to postmenopausal women.
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Hrafnkelsson H, Sigurdsson G, Magnusson KT, Sigurdsson EL, Johannsson E. Fat mass increase in 7-year-old children: more bone area but lower bone mineral density. J Bone Miner Metab 2013; 31:442-8. [PMID: 23397377 DOI: 10.1007/s00774-013-0423-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Accepted: 01/08/2013] [Indexed: 11/30/2022]
Abstract
The main aims of this study were, to evaluate what effect a change in fat mass (FM) and lean body mass (LBM) has on bone parameters over 2 years' time, in 7-year-old school children and to see what effect fitness had on bone parameters in these children. A repeated-measures design study was conducted where children born in 1999 from six elementary schools in Reykjavik, Iceland were measured twice. All children attending second grade in these six schools were invited to participate. Three hundred twenty-one children were invited, 211 underwent dual-energy X-ray absorptiometry (DXA) scans at the age of seven, and 164 (78 %) of the 211 had DXA scans again 2 years later. Increase in both FM and LBM was associated with increased total body bone mineral content (BMC) and bone area (BA). An increase in FM was more strongly positively associated with BA while an increase in LBM was more strongly associated with an increase in BMC. An increase in FM was negatively associated with change in bone mineral density (BMD), but an increase in LBM was positively associated with change in BMD. Fitness was positively associated with bone parameters when weight, height and sex were accounted for. The present results suggest that an increase in fat mass over 2 years is associated with an increase in BA and BMC, but a decrease in BMD in the whole body. An increase in LBM accrual, on the other hand, is positively associated with all bone parameters in the body. Fitness is associated with both BMC and BMD but not BA.
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Bielemann RM, Martinez-Mesa J, Gigante DP. Physical activity during life course and bone mass: a systematic review of methods and findings from cohort studies with young adults. BMC Musculoskelet Disord 2013; 14:77. [PMID: 23497066 PMCID: PMC3599107 DOI: 10.1186/1471-2474-14-77] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 02/19/2013] [Indexed: 11/24/2022] Open
Abstract
Background The purpose of this paper was to review the literature of the cohort studies which evaluated the association between physical activity during the life course and bone mineral content or density in young adults. Methods Prospective cohort studies with bone mineral density or content measured in the whole body, lumbar spine and femoral neck by dual energy x-ray absorptiometry as outcome and physical activity as exposure were searched. Two independent reviewers selected studies retrieved from electronic databases (Medline, Lilacs, Web of Science and Scielo) and reviewed references of all selected full text articles. Downs & Black criterion was used in the quality assessment of these studies. Results Nineteen manuscripts met inclusion criteria. Lumbar spine was the skeletal site most studied (n = 15). Different questionnaires were used for physical activity evaluation. Peak strain score was also used to evaluate physical activity in 5 manuscripts. Lack of statistical power calculation was the main problem found in the quality assessment. Positive associations between physical activity and bone mass were found more in males than in females; in weight bearing anatomical sites (lumbar spine and femoral neck) than in total body and when physical activity measurements were done from adolescence to adulthood – than when evaluated in only one period. Physical activity during growth period was associated with greater bone mass in males. It was not possible to conduct pooled analyses due to the heterogeneity of the studies, considering mainly the different instruments used for physical activity measurements. Conclusions Physical activity seems to be important for bone mass in all periods of life, but especially the growth period should be taking into account due to its important direct effect on bone mass and its influence in physical activity practice in later life. Low participation in peak strain activities may also explain the lower number of associations found in females.
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Affiliation(s)
- Renata M Bielemann
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil.
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31
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Starc G, Strel J. Influence of the quality implementation of a physical education curriculum on the physical development and physical fitness of children. BMC Public Health 2012; 12:61. [PMID: 22264392 PMCID: PMC3305363 DOI: 10.1186/1471-2458-12-61] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Accepted: 01/20/2012] [Indexed: 11/26/2022] Open
Abstract
Background This study was constructed as a comparison group pre-test/post-test quasi-experiment to assess the effect of the implementation of the PE curriculum by specialist PE teachers on children's physical development and physical fitness. Methods 146 classes from 66 Slovenian primary schools were assigned to quasi-test (71) and quasi-control (75) groups. Data from the SLOFIT database was used to compare the differences in physical fitness and development between groups of children whose PE lessons were delivered by specialist PE teachers from the second grade onwards (quasi-test, n = 950) or by generalist teachers in all first three grades (quasi-control, n = 994). The Linear Mixed Model was used to test the influence of specialist PE teachers' teaching. Results The quasi-control group showed significantly lower improvement of physical fitness by -0.07 z-score units (95% CI -0.12 to 0.02) compared to the quasi-test group. A significant difference of -0.20 (-0.27 to -0.13) was observed in explosive strength, and of -0.15 (-0.23 to -0.08) in running speed, and in flexibility by -0.22 (-0.29 to -0.14). No significant differences in physical development were observed. Conclusions Specialist PE teachers were more successful than generalist teachers in achieving greater improvement of children's physical fitness, but no differences were observed in physical development of quasi-test and quasi-control group.
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Affiliation(s)
- Gregor Starc
- Faculty of Sport, University of Ljubljana, Gortanova 22, SI-1000 Ljubljana, Slovenia.
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Zhang J, Lazarenko OP, Blackburn ML, Shankar K, Badger TM, Ronis MJJ, Chen JR. Feeding blueberry diets in early life prevent senescence of osteoblasts and bone loss in ovariectomized adult female rats. PLoS One 2011; 6:e24486. [PMID: 21912699 PMCID: PMC3166322 DOI: 10.1371/journal.pone.0024486] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Accepted: 08/11/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Appropriate nutrition during early development is essential for maximal bone mass accretion; however, linkage between early nutrition, childhood bone mass, peak bone mass in adulthood, and prevention of bone loss later in life has not been studied. METHODOLOGY AND PRINCIPAL FINDINGS In this report, we show that feeding a high quality diet supplemented with blueberries (BB) to pre-pubertal rats throughout development or only between postnatal day 20 (PND20) and PND34 prevented ovariectomy (OVX)-induced bone loss in adult life. This protective effect of BB is due to suppression of osteoblastic cell senescence associated with acute loss of myosin expression after OVX. Early exposure of pre-osteoblasts to serum from BB-fed rats was found to consistently increase myosin expression. This led to maintenance osteoblastic cell development and differentiation and delay of cellular entrance into senescence through regulation of the Runx2 gene. High bone turnover after OVX results in insufficient collagenous matrix support for new osteoblasts and their precursors to express myosin and other cytoskeletal elements required for osteoblast activity and differentiation. CONCLUSIONS/SIGNIFICANCE These results indicate: 1) a significant prevention of OVX-induced bone loss from adult rats can occur with only 14 days consumption of a BB-containing diet immediately prior to puberty; and 2) the molecular mechanisms underlying these effects involves increased myosin production which stimulates osteoblast differentiation and reduces mesenchymal stromal cell senescence.
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Affiliation(s)
- Jian Zhang
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
- Arkansas Children's Nutrition Center, Little Rock, Arkansas, United States of America
| | - Oxana P. Lazarenko
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
- Department of Physiology and Biophysics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Michael L. Blackburn
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
- Department of Physiology and Biophysics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Kartik Shankar
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
- Arkansas Children's Nutrition Center, Little Rock, Arkansas, United States of America
| | - Thomas M. Badger
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
- Arkansas Children's Nutrition Center, Little Rock, Arkansas, United States of America
- Department of Physiology and Biophysics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Martin J. J. Ronis
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
- Arkansas Children's Nutrition Center, Little Rock, Arkansas, United States of America
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Jin-Ran Chen
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
- Arkansas Children's Nutrition Center, Little Rock, Arkansas, United States of America
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Abstract
PURPOSE The American Physical Therapy Association Section on Pediatrics developed a task force to summarize fitness guidelines for children and adolescents. The purposes of this article were to review components, measurement methods, and consequences of physical fitness, and to summarize evidence-based activity recommendations for youth. SUMMARY OF KEY POINTS Health-related fitness is comprised of body composition, flexibility, cardiorespiratory endurance, and muscular strength and endurance. Each of these components is reviewed in terms of definition, assessment, normative values, and recommendations. CONCLUSIONS The task force supports the guidelines of the US Department of Health and Human Services, which state that to promote overall health and wellness, youth should participate in 60 minutes or more of physical activity every day. RECOMMENDATIONS FOR CLINICAL PRACTICE Physical therapists should apply research relevant to health-related fitness when treating youth. Promoting fitness, health, and wellness in our communities is a responsibility all therapists should assume.
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Wei S, Jones G, Thomson R, Dwyer T, Venn A. Oral contraceptive use and bone mass in women aged 26-36 years. Osteoporos Int 2011; 22:351-5. [PMID: 20195845 DOI: 10.1007/s00198-010-1180-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2009] [Accepted: 01/06/2010] [Indexed: 11/29/2022]
Abstract
INTRODUCTION The association between hormonal contraceptive use and bone mineral density remains controversial. HYPOTHESIS Hormonal contraceptive use is positively associated with bone mass in young premenopausal women. METHODS Cross-sectional analysis of data collected from women aged 26-36 years (n = 687) in the Childhood Determinants of Adult Health study-a longitudinal study investigating childhood determinants of cardiovascular disease, diabetes, and other chronic diseases in adulthood. Participants were not currently pregnant or breast-feeding. Contraceptive use was obtained by self-administered questionnaire. Women were categorized as combined oral contraceptive users (n = 219), progestogen-only contraceptive users (n = 43), and non-users of hormonal contraceptives (n = 425). Bone mass was measured by quantitative ultrasound. RESULTS Compared with women who were not using any hormonal contraceptives, women using combined oral contraceptives had significantly higher values of broadband ultrasound attenuation (BUA), speed of sound, and quantitative ultrasound index. These associations remained after adjustment for confounders. Progestogen-only contraceptive users had higher BUA than non-users, but the differences were not statistically significant in this small group. CONCLUSION Combined oral contraceptive use was associated with higher bone mass measured by quantitative ultrasound in this population-based sample of premenopausal women aged 26-36 while progestogen-only contraceptives appeared to have no deleterious effect on bone mass.
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Affiliation(s)
- S Wei
- Menzies Research Institute, University of Tasmania, Private bag 23, Hobart, Tasmania, 7001, Australia.
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Leisure time physical activity in adulthood is positively associated with bone mineral density 22 years later. The Tromsø study. Eur J Epidemiol 2010; 25:325-31. [DOI: 10.1007/s10654-010-9450-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2010] [Accepted: 03/17/2010] [Indexed: 11/27/2022]
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Foley S, Quinn S, Jones G. Tracking of bone mass from childhood to adolescence and factors that predict deviation from tracking. Bone 2009; 44:752-7. [PMID: 19103314 DOI: 10.1016/j.bone.2008.11.009] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2008] [Revised: 10/16/2008] [Accepted: 11/06/2008] [Indexed: 11/15/2022]
Abstract
It has been hypothesized that bone density tracks but long term studies in children are lacking. As such, the aim of this study was to describe tracking of dual X-ray absorptiometry measures from age 8 to age 16 years, whether this was independent of change in body size and whether deviation from tracking could be predicted. 116 males and 67 females had anthropometric (height and weight), questionnaire (medication use, sports, breastfeeding), fitness (PWC(170)) and DXA measures (bone free lean mass [LM], fat mass [FM] and bone mass) at baseline and follow-up. BMC and aBMD were assessed at the spine and hip and total body and bone mineral apparent density (BMAD) at the spine and hip. We found all DXA measures tracked significantly after adjustment for change in height and change in weight (males: R(2): BMC 24-62%; aBMD 41-48%; BMAD 30-37%, females: R(2): BMC 45-72%; aBMD 36-56%; BMAD 30-48%). Factors that predicted subjects would deviate positively, that is improve in tertile or remain in the highest tertile of spine and hip aBMD included having been breastfed, increase in LM, PWC(170) at age 8 and sport participation in males. LM at age 8 was beneficial in males while in females; FM at age 8 predicted subjects would deviate positively. Boys who gained absolute and percent FM and girls who gained percent FM, were more likely to deviate negatively, that is, decrease in tertile or remain in the lowest tertile of spine and hip aBMD. ICS use at age 8 also predicted subjects, particularly males would not improve in bone mass relative to their peers. In conclusion, DXA measures track moderately to strongly from childhood to adolescence. This was independent of linear growth and sex indicating bone development and physical growth are under largely separate mechanistic control. Body composition was the main predictor of altered tracking but environmental factors also appear important.
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Affiliation(s)
- Stella Foley
- Menzies Research Institute, University of Tasmania Private Bag 23, Hobart, Tasmania, Australia.
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