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Latrille C, Hayot M, Bosselut G, Bughin F, Boiché J. Determinants of physical activity in newly diagnosed obstructive sleep apnea patients: testing the health action process approach. J Behav Med 2024; 47:609-621. [PMID: 38413452 DOI: 10.1007/s10865-024-00474-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 01/27/2024] [Indexed: 02/29/2024]
Abstract
This study aims to identify the determinants associated with physical activity (PA) behavior in newly diagnosed obstructive sleep apnea (OSA) patients by applying the Health Action Process Approach (HAPA) with a longitudinal design. Anthropometric and clinical (OSA severity, subjective somnolence, use of continuous positive airway pressure (CPAP)) variables, the determinants of physical activity specified in the HAPA (motivational self-efficacy, outcome expectancies, risk perception, intention, maintenance self-efficacy, action planning, coping planning, social support), as well as physical activity behavior were assessed using a longitudinal (T1 and T2) design in a sample of 57 OSA patients in routine care. Applying regression analyses, regarding the motivation phase, the amount of explained variance in intention was 77% and 39% of the variance in physical activity. In the motivational phase, motivational self-efficacy, risk perception and outcome expectancies were associated with intention. In the volitional phase, physical activity at T1 and social support (family) were related with physical activity at T2. In conclusion, the assumptions of HAPA were partially found in the context of newly diagnosed OSA patients. This study provided additional evidence regarding the role of motivational self-efficacy, outcome expectancies and risk perception during motivational phase, and highlighted the important role of social support from the family in the PA in this population.
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Affiliation(s)
- Christophe Latrille
- EuroMov Digital Health in Motion, Univ Montpellier, IMT Mines Ales, 700 avenue du Pic Saint-Loup, 34090, Montpellier, France.
- PhyMedExp, CNRS, CHRU, INSERM, University of Montpellier, Montpellier, France.
| | - Maurice Hayot
- PhyMedExp, CNRS, CHRU, INSERM, University of Montpellier, Montpellier, France
| | - Grégoire Bosselut
- EuroMov Digital Health in Motion, Univ Montpellier, IMT Mines Ales, 700 avenue du Pic Saint-Loup, 34090, Montpellier, France
| | - François Bughin
- PhyMedExp, CNRS, CHRU, INSERM, University of Montpellier, Montpellier, France
| | - Julie Boiché
- EuroMov Digital Health in Motion, Univ Montpellier, IMT Mines Ales, 700 avenue du Pic Saint-Loup, 34090, Montpellier, France
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2
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Mota CMD, Madden CJ. Neural circuits of long-term thermoregulatory adaptations to cold temperatures and metabolic demands. Nat Rev Neurosci 2024; 25:143-158. [PMID: 38316956 DOI: 10.1038/s41583-023-00785-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2023] [Indexed: 02/07/2024]
Abstract
The mammalian brain controls heat generation and heat loss mechanisms that regulate body temperature and energy metabolism. Thermoeffectors include brown adipose tissue, cutaneous blood flow and skeletal muscle, and metabolic energy sources include white adipose tissue. Neural and metabolic pathways modulating the activity and functional plasticity of these mechanisms contribute not only to the optimization of function during acute challenges, such as ambient temperature changes, infection and stress, but also to longitudinal adaptations to environmental and internal changes. Exposure of humans to repeated and seasonal cold ambient conditions leads to adaptations in thermoeffectors such as habituation of cutaneous vasoconstriction and shivering. In animals that undergo hibernation and torpor, neurally regulated metabolic and thermoregulatory adaptations enable survival during periods of significant reduction in metabolic rate. In addition, changes in diet can activate accessory neural pathways that alter thermoeffector activity. This knowledge may be harnessed for therapeutic purposes, including treatments for obesity and improved means of therapeutic hypothermia.
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Affiliation(s)
- Clarissa M D Mota
- Department of Neurological Surgery, Oregon Health and Science University, Portland, OR, USA
| | - Christopher J Madden
- Department of Neurological Surgery, Oregon Health and Science University, Portland, OR, USA.
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Alick CL, Braxton D, Skinner H, Alexander R, Ammerman AS, Keyserling TC, Samuel-Hodge CD. Rural African American Women With Severe Obesity: A Cross-Sectional Analysis of Lifestyle Behaviors and Psychosocial Characteristics. Am J Health Promot 2023; 37:1060-1069. [PMID: 37505193 PMCID: PMC10631280 DOI: 10.1177/08901171231190597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
PURPOSE To examine differences in lifestyle behavioral and psychosocial factors between rural African American women with Class 3 obesity and those with overweight, and Class 1-2 obesity. DESIGN Cross-sectional study. SETTING Rural Southeastern United States. SUBJECTS Participants included 289 African American women with a mean age of 56 years, 66% with a high school education or less, and a mean body mass index (BMI) of 38.6 kg/m2; 35% (n = 102) were classified with Class 3 obesity. MEASURES We objectively measured height, weight, and physical activity steps/day. Self-reported dietary and physical activity behaviors, general health-related quality of life, mental health, and social support were measured with validated surveys. ANALYSIS Chi-Square analysis for categorical variables and analysis of variance (ANOVA) - via multiple linear regression - for continuous variables. RESULTS There were no significant demographic differences between BMI groups, except for age, where women with Class 3 obesity were on average younger (51 vs 58 y, P < .001). Although dietary behaviors did not differ significantly between groups, we observed significant group differences in self-reported and objective measures of physical activity. The age-adjusted difference in means for self-reported total physical activity minutes/wk. was 91 minutes, with women categorized with Class 3 obesity reporting significantly fewer weekly minutes than those with overweight/Class 1-2 obesity (64.3 vs 156.4 min/wk. respectively, P < .01). Among psychosocial variables, only in the physical component scores of health-related quality of life did we find significant group differences - lower physical well-being among women with Class 3 obesity compared to those with overweight/Class 1-2 obesity (P = .02). CONCLUSION For African American women with Class 3 obesity living in rural setting, these findings suggest behavioral weight loss interventions may need to target physical activity strategies that address physical, psychosocial, and environmental barriers.
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Affiliation(s)
- Candice L. Alick
- Center for Health Promotion & Disease Prevention, University of North Carolina, Chapel Hill, NC, USA
| | - Danielle Braxton
- Department of Health Promotion, North Carolina Wesleyan College, Rocky Mount, NC, USA
| | - Harlyn Skinner
- Department of Biological Science, Center for Human Health and the Environment, North Carolina State University, Chapel Hill, NC, USA
| | - Ramine Alexander
- Department of Family and Consumer Sciences, Food and Nutritional Sciences, North Carolina Agricultural & Technical State University, Greensboro, NC, USA
| | - Alice S. Ammerman
- Department of Nutrition, Gillings School of Global Public Health, Center for Health Promotion and Disease Prevention, University of North Carolina, Chapel Hill, NC, USA
| | - Thomas C. Keyserling
- Internal Medicine, UNC School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Carmen D. Samuel-Hodge
- Department of Nutrition, Gillings School of Global Public Health, Center for Health Promotion and Disease Prevention, University of North Carolina, Chapel Hill, NC, USA
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Tamini S, Caroli D, Bondesan A, Abbruzzese L, Sartorio A. Measured vs estimated resting energy expenditure in children and adolescents with obesity. Sci Rep 2023; 13:13178. [PMID: 37580514 PMCID: PMC10425381 DOI: 10.1038/s41598-023-40435-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 08/10/2023] [Indexed: 08/16/2023] Open
Abstract
Pediatric obesity requires early targeted interventions consisting mainly of a low-calorie diet prescribed based on resting energy expenditure (REE), often estimated through predictive equations. The aim of this study was to define the prevalence of "hypo-", "normo-" and "hypermetabolic" in a large cohort of children and adolescents with obesity by comparing measured and estimated REE and to evaluate the characteristics related to these metabolic statuses in both males and females. The study population was divided into the three subgroups by comparing REE measured using indirect calorimetry and estimated using the Molnar equation, and subsequently analyzed. The majority of the participants (60.6%) were normometabolic, 25.5% hypermetabolic and 13.9% hypometabolic. No significant differences in age, Tanner stage, systolic blood pressure, or the presence of metabolic syndrome were found. However, the hypermetabolic subgroup was significantly lighter, shorter, with lower hip and waist circumferences, had a greater amount of fat-free mass and lower fat mass, significantly lower diastolic blood pressure, and a significantly higher frequency of non-alcoholic liver steatosis. Pediatric obesity is more associated with normal or increased REE than with a hypometabolic condition, suggesting that estimation of energy expenditure with predictive equations is still inadequate for prescribing the appropriate diet plan.
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Affiliation(s)
- Sofia Tamini
- Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-Endocrinological Research, Piancavallo-Verbania, Italy.
| | - Diana Caroli
- Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-Endocrinological Research, Piancavallo-Verbania, Italy
| | - Adele Bondesan
- Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-Endocrinological Research, Piancavallo-Verbania, Italy
| | - Laura Abbruzzese
- Division of Rehabilitative Medicine, Istituto Auxologico Italiano, IRCCS, Piancavallo-Verbania, Italy
| | - Alessandro Sartorio
- Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-Endocrinological Research, Piancavallo-Verbania, Italy
- Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-Endocrinological Research, Milan, Italy
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DeLany JP, Horgan A, Gregor A, Vockley J, Harding CO, Gillingham MB. Resting and total energy expenditure of patients with long-chain fatty acid oxidation disorders (LC-FAODs). Mol Genet Metab 2023; 138:107519. [PMID: 36696737 PMCID: PMC9992335 DOI: 10.1016/j.ymgme.2023.107519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/13/2023] [Accepted: 01/14/2023] [Indexed: 01/19/2023]
Abstract
The basis of medical nutrition therapy for patients with LC-FAODs is to provide adequate energy to maintain anabolism and prevent catabolism. In practice, energy needs are estimated based on formulas derived from normal populations but it is unknown if energy expenditure among patients with LC-FAODs is similar to the normal population. We measured resting energy expenditure (REE), total energy expenditure (TEE) and body composition in 31 subjects with LC-FAODs ranging in age from 7 to 64 years. Measured REE was lower than estimated REE by various prediction equations and measured TEE was lower than estimated TEE. It is possible that the lower energy expenditure based on prediction formulas from the normal population is due to differences in body composition; we compared body composition to normal data from the 2017-18 National Health and Nutrition Examination Survey (NHANES). Fat free mass and fat mass was similar between subjects with an LC-FAOD and NHANES normal data suggesting no difference in body composition. We then compared measured REE and TEE to normal published data from the Dietary Reference Intakes (DRI). Measured REE and TEE were significantly lower among subjects with LC-FAODs compared to normal published energy expenditure data. Our results suggests patients with a LC-FAOD exhibit a lower REE and therefore actually have a slightly lower TEE than estimated. Current prediction equations may overestimate energy expenditure of patients with a LC-FAOD.
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Affiliation(s)
- James P DeLany
- AdventHealth Orlando, Translational Research Institute, Orlando, FL, United States of America
| | - Angela Horgan
- Oregon Translational and Clinical Research Institute, Portland, Oregon, United States of America
| | - Ashley Gregor
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Jerry Vockley
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Cary O Harding
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Melanie B Gillingham
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, Oregon, United States of America.
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Lemus SA, Volz M, Tiozzo E, Perry A, Best TM, Travascio F. The effect of clinically elevated body mass index on physiological stress during manual lifting activities. PLoS One 2022; 17:e0278858. [PMID: 36576923 PMCID: PMC9797066 DOI: 10.1371/journal.pone.0278858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 11/25/2022] [Indexed: 12/29/2022] Open
Abstract
Individuals with a body mass index (BMI) classified as obesity constitute 27.7% of U.S. workers. These individuals are more likely to experience work-related injuries. However, ergonomists still design work tasks based on the general population and normal body weight. This is particularly true for manual lifting tasks and the calculation of recommended weight limits (RWL) as per National Institute of Occupational Safety & Health (NIOSH) guidelines. This study investigates the effects of BMI on indicators of physiological stress. It was hypothesized that, for clinically elevated BMI individuals, repeated manual lifting at RWL would produce physiological stress above safety limits. A repetitive box lifting task was designed to measure metabolic parameters: volume of carbon dioxide (VCO2) and oxygen (VO2), respiratory exchange ratio (RER), heart rate (HR), and energy expenditure rate (EER). A two-way ANOVA compared metabolic variables with BMI classification and gender, and linear regressions investigated BMI correlations. Results showed that BMI classification represented a significant effect for four parameters: VCO2 (p < 0.001), VO2 (p < 0.001), HR (p = 0.012), and EER (p < 0.001). In contrast, gender only had a significant effect on VO2 (p = 0.014) and EER (p = 0.017). Furthermore, significant positive relationships were found between BMI and VCO2 (R2 = 59.65%, p < 0.001), VO2 (R2 = 45.01%, p < 0.001), HR (R2 = 21.86%, p = 0.009), and EER (R2 = 50.83%, p < 0.001). Importantly, 80% of obese subjects exceeded the EER safety limit of 4.7 kcal/min indicated by NIOSH. Indicators of physiological stress are increased in clinically elevated BMI groups and appear capable of putting these individuals at increased risk for workplace injury.
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Affiliation(s)
- Sergio A. Lemus
- Department of Mechanical and Aerospace Engineering, University of Miami, Coral Gables, FL, United States of America
| | - Mallory Volz
- Department of Biomedical Engineering, University of Miami, Coral Gables, FL, United States of America
| | - Eduard Tiozzo
- Department of Physical Medicine and Rehabilitation, University of Miami, Miami, FL, United States of America
- * E-mail: (FT); (ET)
| | - Arlette Perry
- Department of Kinesiology and Sport Sciences, University of Miami, Coral Gables, FL, United States of America
- Laboratory of Clinical and Applied Physiology, University of Miami, Coral Gables, FL, United States of America
- School of Education and Human Development, University of Miami, Coral Gables, FL, United States of America
| | - Thomas M. Best
- Department of Biomedical Engineering, University of Miami, Coral Gables, FL, United States of America
- Department of Orthopaedics, University of Miami, Miami, FL, United States of America
- UHealth Sports Medicine Institute, Coral Gables, FL, United States of America
| | - Francesco Travascio
- Department of Mechanical and Aerospace Engineering, University of Miami, Coral Gables, FL, United States of America
- Department of Orthopaedics, University of Miami, Miami, FL, United States of America
- Max Biedermann Institute for Biomechanics at Mount Sinai Medical Center, Miami Beach, FL, United States of America
- * E-mail: (FT); (ET)
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7
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Gonze BDB, Ostolin TLVDP, Barbosa ACB, Matheus AC, Sperandio EF, Gagliardi ARDT, Arantes RL, Romiti M, Dourado VZ. Dynamic physiological responses in obese and non-obese adults submitted to cardiopulmonary exercise test. PLoS One 2021; 16:e0255724. [PMID: 34370766 PMCID: PMC8351979 DOI: 10.1371/journal.pone.0255724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 07/22/2021] [Indexed: 11/18/2022] Open
Abstract
PURPOSE Obese individuals have reduced performance in cardiopulmonary exercise testing (CPET), mainly considering peak values of variables such as oxygen uptake ([Formula: see text]), carbon dioxide production ([Formula: see text]), tidal volume (Vt), minute ventilation ([Formula: see text]) and heart rate (HR). The CPET interpretation and prognostic value can be improved through submaximal ratios analysis of key variables like [Formula: see text], [Formula: see text], [Formula: see text] [Formula: see text] and oxygen uptake efficiency slope (OUES). The obesity influence on these responses has not yet been investigated. Our purpose was to evaluate the influence of adulthood obesity on maximal and submaximal physiological responses during CPET, emphasizing the analysis of submaximal dynamic variables. METHODS We analyzed 1,594 CPETs of adults (755 obese participants, Body Mass Index ≥ 30 kg/m2) and compared the obtained variables among non-obese (normal weight and overweight) and obese groups (obesity classes I, II and III) through multivariate covariance analyses. RESULT Obesity influenced the majority of evaluated maximal and submaximal responses with worsened CPET performance. Cardiovascular, metabolic and gas exchange variables were the most influenced by obesity. Other maximal and submaximal responses were altered only in morbidly obese. Only a few cardiovascular and ventilatory variables presented inconsistent results. Additionally, Vtmax, [Formula: see text], Vt/Inspiratory Capacity, Vt/Forced Vital Capacity, Lowest [Formula: see text], [Formula: see text], and the y-intercepts of [Formula: see text] did not significantly differ regardless of obesity. CONCLUSION Obesity expressively influences the majority of CPET variables. However, the prognostic values of the main ventilatory efficiency responses remain unchanged. These dynamic responses are not dependent on maximum effort and may be useful in detecting incipient ventilatory disorder. Our results present great practical applicability in identifying exercise limitation, regardless of overweight and obesity.
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Affiliation(s)
- Bárbara de Barros Gonze
- Department of Human Movement Sciences, Federal University of São Paulo (UNIFESP), Santos, São Paulo, Brazil
| | | | | | - Agatha Caveda Matheus
- Department of Human Movement Sciences, Federal University of São Paulo (UNIFESP), Santos, São Paulo, Brazil
- Angiocorpore Institute of Cardiovascular Medicine, Santos, São Paulo, Brazil
| | - Evandro Fornias Sperandio
- Department of Human Movement Sciences, Federal University of São Paulo (UNIFESP), Santos, São Paulo, Brazil
- Angiocorpore Institute of Cardiovascular Medicine, Santos, São Paulo, Brazil
| | | | | | - Marcello Romiti
- Angiocorpore Institute of Cardiovascular Medicine, Santos, São Paulo, Brazil
| | - Victor Zuniga Dourado
- Department of Human Movement Sciences, Federal University of São Paulo (UNIFESP), Santos, São Paulo, Brazil
- Lown Scholars Program–Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
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8
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Müller MJ. Reports of the EASO physical activity working group: Diverse insights, evidence-based recommendations, and future perspectives. Obes Rev 2021; 22 Suppl 4:e13254. [PMID: 33855797 PMCID: PMC8365737 DOI: 10.1111/obr.13254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Manfred J Müller
- Institut für Humanernährung und Lebensmittelkunde, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
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9
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Energy Expenditure of Level Overground Walking in Young Adults: Comparison With Prediction Equations. J Phys Act Health 2021; 18:965-972. [PMID: 34111844 DOI: 10.1123/jpah.2020-0283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND The purpose of this study was to investigate the accuracy of the published prediction equations for determining level overground walking energy cost in young adults. METHODS In total, 148 healthy young adults volunteered to participate in this study. Resting metabolic rate and energy expenditure variables at speeds of 4, 5, and 6 km/h were measured by indirect calorimetry, walking energy expenditure was estimated by 3 published equations. RESULTS The gross and net metabolic rate per mile of level overground walking increased with increased speed (all P < .01). Females were less economical than males. The present findings revealed that the American College of Sports Medicine and Pandolf et al equations significantly underestimated the energy cost of overground walking at all speeds (all P < .01) in young adults. The percentage mean bias for American College of Sports Medicine, Pandolf et al, and Weyand et al was 12.4%, 16.8%, 1.4% (4 km/h); 21.6%, 15.8%, 7.1% (5 km/h); and 27.6%, 12%, 6.6% (6 km/h). Bland-Altman plots and prediction error analysis showed that the Weyand et al was the most accurate in 3 existing equations. CONCLUSIONS The Weyand et al equation appears to be the most suitable for the prediction of overground walking energy expenditure in young adults.
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10
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Tamini S, Cicolini S, Caroli D, Sartorio A. Effects of a 3-Week In-Hospital Multidisciplinary Body Weight Reduction Program in Obese Females: Is Measured Resting Energy Expenditure Essential for Tailoring Adequately the Amount of Energy Intake? Front Nutr 2021; 8:678788. [PMID: 34055863 PMCID: PMC8149587 DOI: 10.3389/fnut.2021.678788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 04/14/2021] [Indexed: 11/13/2022] Open
Abstract
In the obese population, the prescription of a proper diet plan is essential to ensure an appropriate and gradual weight loss, reduce the risk of weight cycling and favor an overall improvement of health conditions. Energy needs are commonly estimated using predictive equations, even if their accuracy is still debated, especially in severely obese subjects. In the present study, 850 severely obese females admitted to our hospital for a multidisciplinary body weight reduction program (BWRP) were divided into three subgroups, “hypo-,” “normo-,” and “hyper-metabolic,” based on the comparison between estimated resting energy expenditure (eREE, using the Mifflin equation) and measured REE (mREE, using indirect calorimetry). The majority of this study population was considered normo-metabolic (59.4%, mREE between 90 and 110% of eREE), 32.6% was hyper-metabolic (mREE > 110% of eREE) and only 8% was hypo-metabolic (mREE < 90% of eREE). The three subgroups were evaluated before and after a 3-week BWRP, entailing energy restricted diet, adapted physical activity, psychological counseling and nutritional education. Since the diet plan during the BWRP consisted of a 30% reduction of total energy expenditure (obtained by multiplying mREE by the physical activity level), each subgroup responded positively to the BWRP independently from the difference between mREE and eREE, the extent of BMI reduction and clinical, metabolic and physical amelioration being comparable among the three subgroups. By contrast, the restriction of the energy intake based on eREE during the BWRP would have determined a slighter caloric restriction in the hypo-metabolic subgroup, thus determining a smaller body weight reduction, and, by contrast, a more marked caloric restriction in the hyper-metabolic subgroup, probably difficult to be tolerated and maintained for prolonged period. In conclusion, the percentage of subjects with “slow metabolism” in a Caucasian female obese population seeking hospitalization for a BWRP is actually lower than expected, finding controverting the common notion that obesity is mostly due to reduced REE. The high percentage (40%) of inadequate eREE in these female obese populations further underlines the absolute need to include the measurement of REE in the clinical practice for the correct prescription of energy intake in severely obese populations.
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Affiliation(s)
- Sofia Tamini
- Istituto Auxologico Italiano, Experimental Laboratory for Auxo-Endocrinological Research, Verbania and Milan, Italy
| | - Sabrina Cicolini
- Istituto Auxologico Italiano, Experimental Laboratory for Auxo-Endocrinological Research, Verbania and Milan, Italy
| | - Diana Caroli
- Istituto Auxologico Italiano, Experimental Laboratory for Auxo-Endocrinological Research, Verbania and Milan, Italy
| | - Alessandro Sartorio
- Istituto Auxologico Italiano, Experimental Laboratory for Auxo-Endocrinological Research, Verbania and Milan, Italy.,Istituto Auxologico Italiano, Division of Auxology and Metabolic Diseases, Verbania, Italy
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11
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Gonze BDB, Ostolin TLVDP, Sperandio EF, Arantes RL, Gagliardi ARDT, Romiti M, Dourado M. Association between obesity and sedentary behavior in adults. REVISTA BRASILEIRA DE CINEANTROPOMETRIA E DESEMPENHO HUMANO 2021. [DOI: 10.1590/1980-0037.2021v23e75420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Although sedentary behavior (SB) is related to the development of metabolic diseases, there is still no consensus in literature about the association between accelerometer-based SB and obesity, especially adjusted for cardiovascular risk factors and level of daily physical activities. The aim was to evaluate the association between obesity and SB adjusted for potential confounders in adults. Data from 780 participants of the Epidemiology and Human Movement (EPIMOV) Study were analyzed. Body weight, body mass index (BMI), and fat body mass as percentage (%FBM) (bioelectrical impedance) were obtained and, then, used to stratify participants. SB was objectively measured using triaxial waist-worn accelerometers placed above the dominant hip during waking hours for at least four consecutive days (4-7 days). SB and its pattern were not significantly different between obesity groups. Although SB presented some significant correlations with obesity, the correlation and determination coefficient indicated weak association between SB and obesity (e.g., BMI and %FBM). Obesity presented little or no association with SB and its pattern after adjustment for potential confounders, especially when SB is measured through accelerometry.
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12
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Westberg AP, Wasenius N, Salonen MK, von Bonsdorff MB, Eriksson JG. Maternal body mass index, change in weight status from childhood to late adulthood and physical activity in older age. Scand J Med Sci Sports 2020; 31:752-762. [PMID: 33249639 DOI: 10.1111/sms.13891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 11/04/2020] [Accepted: 11/15/2020] [Indexed: 11/28/2022]
Abstract
This study aimed to examine the longitudinal associations of maternal body mass index (BMI), weight status in childhood and late adulthood and device-measured total physical activity (TPA) in older age. The study involves 552 participants from Helsinki Birth Cohort Study who were born in Helsinki, Finland, in 1934-1944. TPA was measured with a multisensory body monitor at a mean age of 70 years and expressed in metabolic equivalent of task hours/day (METh/d). Childhood overweight (BMI > 85th percentile) was based on school health records at 6-7 years of age, and late adulthood overweight (BMI ≥ 25 kg/m2 ) was based on clinical measurements at the mean age of 61 years. Childhood overweight was associated with lower TPA, particularly in older women (mean difference -3.2 METh/d, 95% confidence interval (CI) -4.6 - -1.9), and late adulthood overweight was associated with lower TPA both in older women (mean difference -6.2, 95% CI (-7.2 - -5.1) and in older men (mean difference -2.6 METh/d, 95% CI -3.7 - -1.5). TPA in older age was highest in participants who were normal weight both in childhood and adulthood and lowest in participants who were overweight in childhood and adulthood. In participants with childhood overweight, TPA was lower in participants who were overweight both in childhood and adulthood compared to those who were overweight only in childhood. There was a U-shaped distribution of TPA according to maternal BMI in older women (P = .002), but not in older men. In conclusion, reaching normal weight after childhood predicted higher physical activity levels in older age.
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Affiliation(s)
- Anna P Westberg
- Folkhälsan Research Center, Helsinki, Finland.,Department of General Practice and Primary Health Care, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Niko Wasenius
- Folkhälsan Research Center, Helsinki, Finland.,Department of General Practice and Primary Health Care, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Minna K Salonen
- Folkhälsan Research Center, Helsinki, Finland.,Unit of Chronic Disease Prevention, Department of Public Health Solutions, National Institute for Health and Welfare, Helsinki, Finland
| | - Mikaela B von Bonsdorff
- Folkhälsan Research Center, Helsinki, Finland.,Gerontology Research Center and Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Johan G Eriksson
- Folkhälsan Research Center, Helsinki, Finland.,Department of General Practice and Primary Health Care, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Department of Obstetrics and Gynecology and Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Agency for Science, Technology, and Research, Singapore Institute for Clinical Sciences, Singapore, Singapore
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13
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Lovrenovic Z, Doumit M. Development and testing of a passive Walking Assist Exoskeleton. Biocybern Biomed Eng 2019. [DOI: 10.1016/j.bbe.2019.01.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Romualdi D, Versace V, Tagliaferri V, De Cicco S, Immediata V, Apa R, Guido M, Lanzone A. The resting metabolic rate in women with polycystic ovary syndrome and its relation to the hormonal milieu, insulin metabolism, and body fat distribution: a cohort study. J Endocrinol Invest 2019; 42:1089-1097. [PMID: 30847861 DOI: 10.1007/s40618-019-01029-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 02/25/2019] [Indexed: 12/25/2022]
Abstract
PURPOSE To evaluate possible alterations of a major determinant of energy expenditure, the resting metabolic rate (RMR), in women with polycystic ovary syndrome (PCOS) compared with age-BMI similar controls. To assess whether the hormonal milieu, the body fat distribution and the insulin metabolism may affect energy consumption in these patients. METHODS This is a monocentric observational prospective cohort study, including 109 Caucasian PCOS subjects and 31 healthy control women. (Median age PCOS 26.0 ± 9.2 years, controls 25.5 ± 8.5 years; median BMI-body mass index PCOS 26.4 ± 9.4 kg/m2, controls 27.2 ± 12.8 kg/m2). RMR was evaluated by the SenseWear Armband (SWA), a reliable and validated metabolic holter, never previously used in the PCOS population to this purpose. Hormonal assessment, insulin metabolism evaluated by HOMA-IR and OGTT, anthropometric features (BMI and WHR) were also assessed. RESULTS Median RMR resulted similar in PCOS and control women: 1520.0 ± 248.00 kcal/day vs 1464.0 ± 332.70 kcal/day (p = 0.472), even after adjusting for BMI, fat distribution, insulin metabolism parameters. RMR resulted significantly correlated with BMI, WHR, estradiol levels, SHBG, total cholesterol, triglycerides, basal glycaemia, basal insulinemia, AUC insulin 240', and HOMA. In the subgroup of patients with WHR > 0.85, PCOS women showed a significantly lower RMR compared with controls. CONCLUSIONS The higher prevalence of obesity, which negatively influences the reproductive and general health of PCOS women, could be related to factors other than an intrinsic alteration of the RMR. Further studies are needed to clarify the possible role of the visceral fat in modulating the energy balance in PCOS. TRIAL REGISTRATION NUMBER clinicaltrials.gov Identifier NCT03132545.
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Affiliation(s)
- D Romualdi
- Department Of Woman And Child Health And Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS - Università Cattolica del Sacro Cuore, 00168, Rome, Italy.
- Department Of Woman And Child Health, Division of Obstetrics and Gynecology, Azienda Ospedaliera "Cardinale Panico", 73039, Tricase, Italy.
| | - V Versace
- Department Of Woman And Child Health And Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS - Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - V Tagliaferri
- Department of Obstetrics and Gynaecology, Ente Ecclesiastico Ospedale Generale Regionale "F. Miulli", 70021, Acquaviva delle Fonti, Italy
| | - S De Cicco
- Department Of Woman And Child Health And Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS - Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - V Immediata
- Department Of Woman And Child Health And Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS - Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - R Apa
- Department Of Woman And Child Health And Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS - Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - M Guido
- Department of Obstetrics and Gynaecology, Ente Ecclesiastico Ospedale Generale Regionale "F. Miulli", 70021, Acquaviva delle Fonti, Italy
| | - A Lanzone
- Department Of Woman And Child Health And Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS - Università Cattolica del Sacro Cuore, 00168, Rome, Italy
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15
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Rachakonda VP, DeLany JP, Kershaw EE, Behari J. Impact of Hepatic Steatosis on Resting Metabolic Rate and Metabolic Adaptation in Response to Intentional Weight Loss. Hepatol Commun 2019; 3:1347-1355. [PMID: 31592493 PMCID: PMC6771160 DOI: 10.1002/hep4.1414] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 06/28/2019] [Indexed: 01/11/2023] Open
Abstract
Weight loss is the primary intervention for nonalcoholic fatty liver disease (NAFLD). A decrease in resting metabolic rate (RMR) out of proportion to the degree of weight loss may promote weight regain. We aimed to determine the impact of hepatic steatosis on weight loss‐associated changes in RMR and metabolic adaptation, defined as the difference between predicted and measured RMR after weight loss. We retrospectively analyzed prospectively collected data from 114 subjects without diabetes (52 with NAFLD), with body mass index (BMI) >35, and who enrolled in a 6‐month weight loss intervention. Hepatic steatosis was determined by unenhanced computed tomography scans by liver:spleen attenuation ratio <1.1. RMR was measured by indirect calorimetry. At baseline, patients with hepatic steatosis had higher BMI, fat mass (FM), fat‐free mass (FFM), and RMR (RMR, 1,933 kcal/day; 95% confidence interval [CI], 841‐2,025 kcal/day; versus 1,696; 95% CI, 1,641‐1,751; P < 0.0001). After 6 months, the NAFLD group experienced larger absolute declines in weight, FM, and FFM, but percentage changes in weight, FFM, and FM were similar between groups. A greater decline in RMR was observed in patients with NAFLD (−179 kcal/day; 95% CI, −233 to −126 kcal/day; versus −100; 95% CI, −51 to −150; P = 0.0154) for the time × group interaction, and patients with NAFLD experienced greater metabolic adaptation to weight loss (−97 kcal/day; 95% CI, −143 to −50 kcal/day; versus −31.7; 95% CI, −74 to 11; P = 0.0218) for the prediction × group interaction. The change (Δ) in RMR was significantly associated with ΔFM, ΔFFM, and baseline RMR, while metabolic adaptation was significantly associated with female sex and ΔFM only. Conclusion: Hepatic steatosis is associated with a greater reduction in FM, which predicts RMR decline and a higher metabolic adaptation after weight loss, potentially increasing the risk of long‐term weight regain.
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Affiliation(s)
- Vikrant P Rachakonda
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine University of Pittsburgh School of Medicine Pittsburgh PA
| | - James P DeLany
- Translational Research Institute for Metabolism and Diabetes AdventHealth Orlando FL
| | - Erin E Kershaw
- Division of Endocrinology and Metabolism, Department of Medicine University of Pittsburgh School of Medicine Pittsburgh PA
| | - Jaideep Behari
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine University of Pittsburgh School of Medicine Pittsburgh PA
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16
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Oussaada SM, van Galen KA, Cooiman MI, Kleinendorst L, Hazebroek EJ, van Haelst MM, Ter Horst KW, Serlie MJ. The pathogenesis of obesity. Metabolism 2019; 92:26-36. [PMID: 30639246 DOI: 10.1016/j.metabol.2018.12.012] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 12/28/2018] [Accepted: 12/30/2018] [Indexed: 12/14/2022]
Abstract
Body fat mass increases when energy intake exceeds energy expenditure. In the long term, a positive energy balance will result in obesity. The worldwide prevalence of obesity has increased dramatically, posing a serious threat to human health. Therefore, insight in the pathogenesis of obesity is important to identify novel prevention and treatment strategies. This review describes the physiology of energy expenditure and energy intake in the context of body weight gain in humans. We focus on the components of energy expenditure and the regulation of energy intake. Finally, we describe rare monogenetic causes leading to an impairment in central regulation of food intake and obesity.
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Affiliation(s)
- Sabrina M Oussaada
- Department of Endocrinology and Metabolism, Amsterdam University Medical Centers, location Academic Medical Center, Amsterdam, the Netherlands
| | - Katy A van Galen
- Department of Endocrinology and Metabolism, Amsterdam University Medical Centers, location Academic Medical Center, Amsterdam, the Netherlands
| | - Mellody I Cooiman
- Department of Bariatric Surgery, Rijnstate Hospital, Arnhem, the Netherlands
| | - Lotte Kleinendorst
- Department of Clinical Genetics, Amsterdam University Medical Centers, location Academic Medical Center, Amsterdam, the Netherlands
| | - Eric J Hazebroek
- Department of Bariatric Surgery, Rijnstate Hospital, Arnhem, the Netherlands
| | - Mieke M van Haelst
- Department of Clinical Genetics, Amsterdam University Medical Centers, location Academic Medical Center, Amsterdam, the Netherlands
| | - Kasper W Ter Horst
- Department of Endocrinology and Metabolism, Amsterdam University Medical Centers, location Academic Medical Center, Amsterdam, the Netherlands
| | - Mireille J Serlie
- Department of Endocrinology and Metabolism, Amsterdam University Medical Centers, location Academic Medical Center, Amsterdam, the Netherlands.
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17
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Singh A, Zapata RC, Pezeshki A, Workentine ML, Chelikani PK. Host genetics and diet composition interact to modulate gut microbiota and predisposition to metabolic syndrome in spontaneously hypertensive stroke-prone rats. FASEB J 2019; 33:6748-6766. [PMID: 30821497 DOI: 10.1096/fj.201801627rrr] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Metabolic syndrome encompasses obesity, glucose intolerance, hypertension, and dyslipidemia; however, the interactions between diet and host physiology that predispose to metabolic syndrome are incompletely understood. Here, we explored the effects of a high-fat diet (HFD) on energy balance, gut microbiota, and risk factors of metabolic syndrome in spontaneously hypertensive stroke-prone (SHRSP) and Wistar-Kyoto (WKY) rats. We found that the SHRSP rats were hypertensive, hyperphagic, less sensitive to hypophagic effects of exendin-4, and expended more energy with diminished sensitivity to sympathetic blockade compared to WKY rats. Notably, key thermogenic markers in brown and retroperitoneal adipose tissues and skeletal muscle were up-regulated in SHRSP than WKY rats. Although HFD promoted weight gain, adiposity, glucose intolerance, hypertriglyceridemia, hepatic lipidosis, and hyperleptinemia in both SHRSP and WKY rats, the SHRSP rats weighed less but had comparable percent adiposity to WKY rats, which supports the use of HFD-fed SHRSP rats as a unique model for studying the metabolically obese normal weight (MONW) phenotype in humans. Despite distinct strain differences in gut microbiota composition, diet had a preponderant impact on gut flora with some of the taxa being strongly associated with key metabolic parameters. Together, we provide evidence that interactions between host genetics and diet modulate gut microbiota and predispose SHRSP rats to develop metabolic syndrome.-Singh, A., Zapata, R. C., Pezeshki, A., Workentine, M. L., Chelikani, P. K. Host genetics and diet composition interact to modulate gut microbiota and predisposition to metabolic syndrome in spontaneously hypertensive stroke-prone rats.
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Affiliation(s)
- Arashdeep Singh
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Rizaldy C Zapata
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Adel Pezeshki
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, Oklahoma, USA
| | - Matthew L Workentine
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Prasanth K Chelikani
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada.,Gastrointestinal Research Group, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada
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18
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Westerterp KR. Exercise, energy balance and body composition. Eur J Clin Nutr 2018; 72:1246-1250. [PMID: 30185845 PMCID: PMC6125254 DOI: 10.1038/s41430-018-0180-4] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 04/10/2018] [Indexed: 12/30/2022]
Abstract
Activity-induced energy expenditure, as determined by the activity pattern including exercise, is the most variable component of daily energy expenditure. Here, the focus is on effects of exercise training on energy balance and body composition in subjects with a sedentary or light-active lifestyle. Then, exercise training induces an energy imbalance consistently lower than prescribed energy expenditure from exercise. Additionally, individual responses are highly variable and decrease in time. Combining the results from 23 exercise training studies in normal-weight, overweight, and obese subjects, varying in duration from 2 to 64 weeks, showed an average initial energy imbalance of about 2 MJ/day with an exponential decline to nearly zero after about 1 year. A compensatory increase in energy intake is the most likely explanation for the lower than expected effect of exercise on energy balance. Overall, exercise training results in a healthier body composition as reflected by a reduction of body fat, especially in overweight and obese subjects, with little or no long-term effect on body weight.
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Affiliation(s)
- Klaas R Westerterp
- NUTRIM, Maastricht University Medical Centre, Maastricht, The Netherlands.
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19
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Chung N, Park MY, Kim J, Park HY, Hwang H, Lee CH, Han JS, So J, Park J, Lim K. Non-exercise activity thermogenesis (NEAT): a component of total daily energy expenditure. J Exerc Nutrition Biochem 2018; 22:23-30. [PMID: 30149423 PMCID: PMC6058072 DOI: 10.20463/jenb.2018.0013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 06/12/2018] [Indexed: 12/14/2022] Open
Abstract
[Purpose] The purpose of this review is to promote awareness of non-exercise activity thermogenesis (NEAT) as a new strategy to increase energy expenditure, and to manage obesity. [Methods] The content of this review is based on a literature search of PubMed and the Google Scholar search engine, using the search terms obesity, energy expenditure, non-exercise activity thermogenesis (NEAT), and sitting disease. [Results] Daily energy expenditure is of great interest because most obese individuals have no exercise activity-related thermogenesis (EAT); thus their physical activity-related energy expenditure (PEE) is comprised almost entirely of NEAT. Consequently, NEAT represents the main variable component of daily total energy expenditure (TEE); this varies considerably, both within among individuals. These somewhat unplanned and unstructured low level physical activities are associated with energy expenditure in excess of the resting metabolic rate (RMR). They may therefore have the potential to stimulate greater energy expenditure over time with a higher rate of adherence. [Conclusion] In conclusion, NEAT is a highly variable component of daily TEE and a low level of NEAT is associated with obesity. NEAT enhances lifestyle, and variations in individual and environmental factors can significantly affect daily energy expenditure. Therefore, well designed longitudinal studies that focus on personal behavioral approaches and re-engineered environments to increase NEAT should be conducted in the future.
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20
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Licholai JA, Nguyen KP, Fobbs WC, Schuster CJ, Ali MA, Kravitz AV. Why Do Mice Overeat High-Fat Diets? How High-Fat Diet Alters the Regulation of Daily Caloric Intake in Mice. Obesity (Silver Spring) 2018; 26:1026-1033. [PMID: 29707908 PMCID: PMC5970071 DOI: 10.1002/oby.22195] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/24/2018] [Accepted: 03/21/2018] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Ad libitum high-fat diets (HFDs) spontaneously increase caloric intake in rodents, which correlates positively with weight gain. However, it remains unclear why rodents overeat HFDs. This paper investigated how changing the proportion of diet that came from HFDs might alter daily caloric intake in mice. METHODS Mice were given 25%, 50%, or 90% of their daily caloric need from an HFD, along with ad libitum access to a low-fat rodent chow diet. Food intake was measured daily to determine how these HFD supplements impacted total daily caloric intake. Follow-up experiments addressed the timing of HFD feeding. RESULTS HFD supplements did not alter total caloric intake or body weight. In a follow-up experiment, mice consumed approximately 50% of their daily caloric need from an HFD in 30 minutes during the light cycle, a time when mice do not normally consume food. CONCLUSIONS An HFD did not disrupt regulation of total daily caloric intake, even when up to 90% of total calories came from the HFD. However, HFDs increased daily caloric intake when provided ad libitum and were readily consumed by mice outside of their normal feeding cycle. Ad libitum HFDs appear to induce overconsumption beyond the mechanisms that regulate daily caloric intake.
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Affiliation(s)
- Julia A Licholai
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland, USA
| | - Katrina P Nguyen
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland, USA
| | - Wambura C Fobbs
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland, USA
| | - Corbin J Schuster
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland, USA
| | - Mohamed A Ali
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland, USA
| | - Alexxai V Kravitz
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland, USA
- National Institute on Drug Abuse, Baltimore, Maryland, USA
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21
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Johnson CD, Simonson AJ, Darnell ME, DeLany JP, Wohleber MF, Connaboy C. Energy expenditure and intake during Special Operations Forces field training in a jungle and glacial environment. Appl Physiol Nutr Metab 2018; 43:381-386. [DOI: 10.1139/apnm-2017-0622] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The purpose of this study was to identify and compare energy requirements specific to Special Operations Forces in field training, in both cool and hot environments. Three separate training sessions were evaluated, 2 in a hot environment (n = 21) and 1 in a cool environment (n = 8). Total energy expenditure was calculated using doubly labeled water. Dietary intake was assessed via self-report at the end of each training mission day, and macronutrient intakes were calculated. Across the 3 missions, mean energy expenditure (4618 ± 1350 kcal/day) exceeded mean energy intake (2429 ± 838 kcal/day) by an average of 2200 kcal/day. Macronutrient intakes (carbohydrates (g/(kg·day body weight (bw))−1) = 3.2 ± 1.2; protein (g/(kg·day bw)−1) = 1.3 ± 0.7; fat (g/(kg·day bw)−1) = 1.2 ± 0.7) showed inadequate carbohydrate and possibly protein intake across the study period, compared with common recommendations. Total energy expenditures were found to be similar between hot (4664 ± 1399 kcal/day) and cool (4549 ± 1221 kcal/day) environments. However, energy intake was found to be higher in the cool (3001 ± 900 kcal/day) compared with hot (2200 ± 711 kcal/day) environments. Based on the identified energy deficit, high variation in energy expenditures, and poor macronutrient intake, a greater attention to feeding practices during similar training scenarios for Special Operations Forces is needed to help maintain performance and health. The differences in environmental heat stress between the 2 climates/environments had no observed effect on energy expenditures, but may have influenced intakes.
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Affiliation(s)
- Caleb D. Johnson
- Neuromuscular Research Laboratory, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, PA 15203, USA
| | - Andrew J. Simonson
- Neuromuscular Research Laboratory, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, PA 15203, USA
| | - Matthew E. Darnell
- Neuromuscular Research Laboratory, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, PA 15203, USA
| | - James P. DeLany
- Department of Medicine, Division of Endocrinology and Metabolism, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Meleesa F. Wohleber
- Neuromuscular Research Laboratory, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, PA 15203, USA
| | - Christopher Connaboy
- Neuromuscular Research Laboratory, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, PA 15203, USA
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22
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Mendelson M, Bailly S, Marillier M, Flore P, Borel JC, Vivodtzev I, Doutreleau S, Verges S, Tamisier R, Pépin JL. Obstructive Sleep Apnea Syndrome, Objectively Measured Physical Activity and Exercise Training Interventions: A Systematic Review and Meta-Analysis. Front Neurol 2018. [PMID: 29520251 PMCID: PMC5827163 DOI: 10.3389/fneur.2018.00073] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
A systematic review of English and French articles using Pubmed/Medline and Embase included studies assessing objective physical activity levels of obstructive sleep apnea (OSA) patients and exploring the effects of exercise training on OSA severity, body mass index (BMI), sleepiness, and cardiorespiratory fitness [peak oxygen consumption (VO2peak)]. Two independent reviewers analyzed the studies, extracted the data, and assessed the quality of evidence. For objective physical activity levels, eight studies were included. The mean number of steps per day across studies was 5,388 (95% CI: 3,831–6,945; p < 0.001), which was by far lower than the recommended threshold of 10,000 steps per day. For exercise training, six randomized trials were included. There was a significant decrease in apnea–hypopnea-index following exercise training (mean decrease of 8.9 events/h; 95% CI: −13.4 to −4.3; p < 0.01), which was accompanied by a reduction in subjective sleepiness, an increase in VO2peak and no change in BMI. OSA patients present low levels of physical activity and exercise training is associated with improved outcomes. Future interventions (including exercise training) focusing on increasing physical activity levels may have important clinical impacts on both OSA severity and the burden of associated co-morbidities. Objective measurement of physical activity in routine OSA management and well-designed clinical trials are recommended. Registration # CRD42017057319 (Prospero).
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Affiliation(s)
- Monique Mendelson
- 1HP2 Laboratory, University Grenoble Alpes, Grenoble, France.,U1042, INSERM, Grenoble, France
| | - Sébastien Bailly
- 1HP2 Laboratory, University Grenoble Alpes, Grenoble, France.,U1042, INSERM, Grenoble, France
| | - Mathieu Marillier
- 1HP2 Laboratory, University Grenoble Alpes, Grenoble, France.,U1042, INSERM, Grenoble, France
| | - Patrice Flore
- 1HP2 Laboratory, University Grenoble Alpes, Grenoble, France.,U1042, INSERM, Grenoble, France
| | - Jean Christian Borel
- 1HP2 Laboratory, University Grenoble Alpes, Grenoble, France.,U1042, INSERM, Grenoble, France.,AGIR à Dom. Association, Meylan, France
| | - Isabelle Vivodtzev
- 1HP2 Laboratory, University Grenoble Alpes, Grenoble, France.,U1042, INSERM, Grenoble, France
| | - Stéphane Doutreleau
- 1HP2 Laboratory, University Grenoble Alpes, Grenoble, France.,U1042, INSERM, Grenoble, France.,Grenoble Alps University Hospital, Grenoble, France
| | - Samuel Verges
- 1HP2 Laboratory, University Grenoble Alpes, Grenoble, France.,U1042, INSERM, Grenoble, France
| | - Renaud Tamisier
- 1HP2 Laboratory, University Grenoble Alpes, Grenoble, France.,U1042, INSERM, Grenoble, France.,Grenoble Alps University Hospital, Grenoble, France
| | - Jean-Louis Pépin
- 1HP2 Laboratory, University Grenoble Alpes, Grenoble, France.,U1042, INSERM, Grenoble, France.,Grenoble Alps University Hospital, Grenoble, France
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23
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Palmnäs MSA, Kopciuk KA, Shaykhutdinov RA, Robson PJ, Mignault D, Rabasa-Lhoret R, Vogel HJ, Csizmadi I. Serum Metabolomics of Activity Energy Expenditure and its Relation to Metabolic Syndrome and Obesity. Sci Rep 2018; 8:3308. [PMID: 29459697 PMCID: PMC5818610 DOI: 10.1038/s41598-018-21585-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 02/01/2018] [Indexed: 12/19/2022] Open
Abstract
Modifiable lifestyle factors, including exercise and activity energy expenditure (AEE), may attenuate the unfavorable health effects of obesity, such as risk factors of metabolic syndrome (MetS). However, the underlying mechanisms are not clear. In this study we sought to investigate whether the metabolite profiles of MetS and adiposity assessed by body mass index (BMI) and central obesity are inversely correlated with AEE and physical activity. We studied 35 men and 47 women, aged 30-60 years, using doubly labeled water to derive AEE and the Sedentary Time and Activity Reporting Questionnaire (STAR-Q) to determine the time spent in moderate and vigorous physical activity. Proton nuclear magnetic resonance spectroscopy was used for serum metabolomics analysis. Serine and glycine were found in lower concentrations in participants with more MetS risk factors and greater adiposity. However, serine and glycine concentrations were higher with increasing activity measures. Metabolic pathway analysis and recent literature suggests that the lower serine and glycine concentrations in the overweight/obese state could be a consequence of serine entering de novo sphingolipid synthesis. Taken together, higher levels of AEE and physical activity may play a crucial part in improving metabolic health in men and women with and without MetS risk factors.
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Affiliation(s)
- Marie S A Palmnäs
- University of Calgary, Department of Biochemistry and Molecular Biology, Calgary, T2N 1N4, Canada
- University of Calgary, Department of Biological Sciences, Calgary, T2N 1N4, Canada
| | - Karen A Kopciuk
- University of Calgary, Department of Oncology, Calgary, T2N 1N4, Canada
- University of Calgary, Department of Mathematics and Statistics, Calgary, T2N 1N4, Canada
| | | | - Paula J Robson
- C-MORE, CancerControl Alberta, Alberta Health Services, Calgary, T5J 3H1, Canada
| | - Diane Mignault
- Institut de Recherches Cliniques de Montréal, Montréal, H2W 1R7, Canada
- Université de Montréal, Département de Nutrition, Montréal, H3T 1J4, Canada
| | - Rémi Rabasa-Lhoret
- Institut de Recherches Cliniques de Montréal, Montréal, H2W 1R7, Canada
- Université de Montréal, Département de Nutrition, Montréal, H3T 1J4, Canada
| | - Hans J Vogel
- University of Calgary, Department of Biochemistry and Molecular Biology, Calgary, T2N 1N4, Canada.
- University of Calgary, Department of Biological Sciences, Calgary, T2N 1N4, Canada.
| | - Ilona Csizmadi
- University of Calgary, Department of Oncology, Calgary, T2N 1N4, Canada.
- University of Calgary, Community Health Sciences, Calgary, T2N 1N4, Canada.
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25
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Gillingham MB, Heitner SB, Martin J, Rose S, Goldstein A, El-Gharbawy AH, Deward S, Lasarev MR, Pollaro J, DeLany JP, Burchill LJ, Goodpaster B, Shoemaker J, Matern D, Harding CO, Vockley J. Triheptanoin versus trioctanoin for long-chain fatty acid oxidation disorders: a double blinded, randomized controlled trial. J Inherit Metab Dis 2017; 40:831-843. [PMID: 28871440 PMCID: PMC6545116 DOI: 10.1007/s10545-017-0085-8] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 08/18/2017] [Accepted: 08/21/2017] [Indexed: 12/27/2022]
Abstract
BACKGROUND Observational reports suggest that supplementation that increases citric acid cycle intermediates via anaplerosis may have therapeutic advantages over traditional medium-chain triglyceride (MCT) treatment of long-chain fatty acid oxidation disorders (LC-FAODs) but controlled trials have not been reported. The goal of our study was to compare the effects of triheptanoin (C7), an anaplerotic seven-carbon fatty acid triglyceride, to trioctanoin (C8), an eight-carbon fatty acid triglyceride, in patients with LC-FAODs. METHODS A double blinded, randomized controlled trial of 32 subjects with LC-FAODs (carnitine palmitoyltransferase-2, very long-chain acylCoA dehydrogenase, trifunctional protein or long-chain 3-hydroxy acylCoA dehydrogenase deficiencies) who were randomly assigned a diet containing 20% of their total daily energy from either C7 or C8 for 4 months was conducted. Primary outcomes included changes in total energy expenditure (TEE), cardiac function by echocardiogram, exercise tolerance, and phosphocreatine recovery following acute exercise. Secondary outcomes included body composition, blood biomarkers, and adverse events, including incidence of rhabdomyolysis. RESULTS Patients in the C7 group increased left ventricular (LV) ejection fraction by 7.4% (p = 0.046) while experiencing a 20% (p = 0.041) decrease in LV wall mass on their resting echocardiogram. They also required a lower heart rate for the same amount of work during a moderate-intensity exercise stress test when compared to patients taking C8. There was no difference in TEE, phosphocreatine recovery, body composition, incidence of rhabdomyolysis, or any secondary outcome measures between the groups. CONCLUSIONS C7 improved LV ejection fraction and reduced LV mass at rest, as well as lowering heart rate during exercise among patients with LC-FAODs. CLINICAL TRIAL REGISTRATION Clinicaltrials.gov NCT01379625.
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Affiliation(s)
- Melanie B Gillingham
- Department of Molecular and Medical Genetics, Graduate Programs in Human Nutrition, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR, 97239, USA.
| | - Stephen B Heitner
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, USA
| | - Julie Martin
- Department of Molecular and Medical Genetics, Graduate Programs in Human Nutrition, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR, 97239, USA
| | - Sarah Rose
- Department of Molecular and Medical Genetics, Graduate Programs in Human Nutrition, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR, 97239, USA
- PRA Health Sciences, Raleigh, NC, USA
| | - Amy Goldstein
- Neurogenetics and Metabolism, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA
| | - Areeg Hassan El-Gharbawy
- Division of Medical Genetics, University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Stephanie Deward
- Division of Medical Genetics, University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
- GeneDx, Gaithersburg, MD, USA
| | - Michael R Lasarev
- Center for Research on Occupational and Environmental Toxicology, Oregon Health & Science University, Portland, OR, USA
| | - Jim Pollaro
- Advanced Imaging Research Center, Oregon Health & Science University, Portland, OR, USA
| | - James P DeLany
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Luke J Burchill
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, USA
| | - Bret Goodpaster
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- The Florida Hospital Translational Research Institute, and the Sanford Burnham Institute, Orlando, FL, USA
| | - James Shoemaker
- Department of Biochemistry and Molecular Biology, Saint Louis University, Saint Louis, MO, USA
| | - Dietrich Matern
- Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Cary O Harding
- Department of Molecular and Medical Genetics, Graduate Programs in Human Nutrition, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR, 97239, USA
| | - Jerry Vockley
- Division of Medical Genetics, University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
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Banna JC, McCrory MA, Fialkowski MK, Boushey C. Examining Plausibility of Self-Reported Energy Intake Data: Considerations for Method Selection. Front Nutr 2017; 4:45. [PMID: 28993807 PMCID: PMC5622407 DOI: 10.3389/fnut.2017.00045] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 09/11/2017] [Indexed: 01/28/2023] Open
Abstract
Self-reported dietary intake data contain valuable information and have long been used in the development of nutrition programs and policy. Some degree of measurement error is always present in such data. Biological plausibility, assessed by determining whether self-reported energy intake (rEI) reflects physiological status and physical activity level, must be examined and accounted for before drawing conclusions about intake. Methods that may be used to account for plausibility of rEI include crude methods such as excluding participants reporting EIs at the extremes of a range of intake and individualized methods such as statistical adjustment and applying cutoffs that account for the errors associated with within-participant variation in EI and total energy expenditure (TEE). These approaches allow researchers to determine how accounting for under- and overreporting affects study results and to appropriately address misreporting in drawing conclusions with data collected and in interpreting reported research. In selecting a procedure to assess and account for plausibility of intake, there are a number of key considerations, such as resources available, the dietary-report instrument, as well as the advantages and disadvantages of each method. While additional studies are warranted to recommend one procedure as superior to another, researchers should apply one of the available methods to address the issue of implausible rEI. If no method is applied, then at minimum, mean TEE or rEI/TEE should be reported to allow readers to ascertain the degree of misreporting at a gross level and better interpret the data and results provided.
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Affiliation(s)
- Jinan C. Banna
- University of Hawaii at Manoa, Honolulu, HI, United States
| | | | | | - Carol Boushey
- University of Hawaii Cancer Center, Honolulu, HI, United States
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Hunt DF, Hunt HBN, Park JH. Bioenergetic costs and state influence distance perception. Physiol Behav 2017; 180:103-106. [PMID: 28803856 DOI: 10.1016/j.physbeh.2017.08.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 06/04/2017] [Accepted: 08/09/2017] [Indexed: 11/25/2022]
Abstract
Bioenergetic resources and states have been found to influence visual perception, with greater expected energy expenditure being associated with perceptions of greater distances and steeper slopes. Here we tested whether resting metabolic rate (RMR), which can serve as a proxy for the bioenergetic costs of completing physical activity, is positively correlated with perceived distance. We also tested whether temporarily depleting bioenergetic resources through exercise would result in greater perceived distance. Eighty-two members of the public were recruited at a beach in Weston-super-Mare, UK. Half completed moderate exercise and half acted as controls. They then estimated distance to a set point. Results showed that RMR (computed using a recognized equation) was positively correlated with distance perception, meaning that participants requiring greater energy to traverse a set distance perceived the set point as farther away. In addition, those participants who had their bioenergetic resources temporarily depleted through exercise perceived the set distance as greater, compared to controls. There was no interaction effect between RMR and exercise. To our knowledge, these results are the first to show a relationship between metabolic rate and distance perception, and they contribute to the literature on embodied perception.
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Affiliation(s)
- David Francis Hunt
- School of Experimental Psychology, University of Bristol, Bristol, United Kingdom.
| | - Heidi B N Hunt
- Department of Health and Social Sciences, University of the West of England, Bristol, United Kingdom
| | - Justin H Park
- School of Experimental Psychology, University of Bristol, Bristol, United Kingdom
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28
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Boushey CJ, Spoden M, Delp EJ, Zhu F, Bosch M, Ahmad Z, Shvetsov YB, DeLany JP, Kerr DA. Reported Energy Intake Accuracy Compared to Doubly Labeled Water and Usability of the Mobile Food Record among Community Dwelling Adults. Nutrients 2017; 9:E312. [PMID: 28327502 PMCID: PMC5372975 DOI: 10.3390/nu9030312] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/02/2017] [Accepted: 03/17/2017] [Indexed: 11/16/2022] Open
Abstract
The mobile Food Record (mFR) is an image-based dietary assessment method for mobile devices. The study primary aim was to test the accuracy of the mFR by comparing reported energy intake (rEI) to total energy expenditure (TEE) using the doubly labeled water (DLW) method. Usability of the mFR was assessed by questionnaires before and after the study. Participants were 45 community dwelling men and women, 21-65 years. They were provided pack-out meals and snacks and encouraged to supplement with usual foods and beverages not provided. After being dosed with DLW, participants were instructed to record all eating occasions over a 7.5 days period using the mFR. Three trained analysts estimated rEI from the images sent to a secure server. rEI and TEE correlated significantly (Spearman correlation coefficient of 0.58, p < 0.0001). The mean percentage of underreporting below the lower 95% confidence interval of the ratio of rEI to TEE was 12% for men (standard deviation (SD) ± 11%) and 10% for women (SD ± 10%). The results demonstrate the accuracy of the mFR is comparable to traditional dietary records and other image-based methods. No systematic biases could be found. The mFR was received well by the participants and usability was rated as easy.
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Affiliation(s)
- Carol J Boushey
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI 96813, USA.
| | - Melissa Spoden
- Department for Structural Advancement and Quality Management in Health Care, Technical University Berlin, Berlin 10632, Germany.
| | - Edward J Delp
- School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA.
| | - Fengqing Zhu
- School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA.
| | - Marc Bosch
- The Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA.
| | - Ziad Ahmad
- Motorola Mobility LLC, Chicago, IL 60654, USA.
| | - Yurii B Shvetsov
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI 96813, USA.
| | - James P DeLany
- Department of Medicine, Division of Endocrinology and Metabolism, University of Pittsburgh, Pittsburgh, PA 15213, USA.
| | - Deborah A Kerr
- School of Public Health, Curtin University, Perth WA 6845, Australia.
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Hames KC, Coen PM, King WC, Anthony SJ, Stefanovic-Racic M, Toledo FG, Brown J, Helbling N, Dubé JJ, DeLany JP, Jakicic JJ, Goodpaster BH. Resting and exercise energy metabolism in weight-reduced adults with severe obesity. Obesity (Silver Spring) 2016; 24:1290-8. [PMID: 27129892 PMCID: PMC6455966 DOI: 10.1002/oby.21501] [Citation(s) in RCA: 8] [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: 07/24/2015] [Accepted: 02/14/2016] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To determine effects of physical activity (PA) with diet-induced weight loss on energy metabolism in adults with severe obesity. METHODS Adults with severe obesity (n = 11) were studied across 6 months of intervention, then compared with controls with less severe obesity (n = 7) or normal weight (n = 9). Indirect calorimetry measured energy metabolism during exercise and rest. Markers of muscle oxidation were determined by immunohistochemistry. Data were presented as medians. RESULTS The intervention induced 7% weight loss (P = 0.001) and increased vigorous PA by 24 min/wk (P = 0.02). During exercise, energy expenditure decreased, efficiency increased (P ≤ 0.03), and fatty acid oxidation (FAO) did not change. Succinate dehydrogenase increased (P = 0.001), but fiber type remained the same. Post-intervention subjects' resting metabolism remained similar to controls. Efficiency was lower in post-intervention subjects compared with normal-weight controls exercising at 25 W (P ≤ 0.002) and compared with all controls exercising at 60% VO2peak (P ≤ 0.019). Resting and exercise FAO of post-intervention subjects remained similar to adults with less severe obesity. Succinate dehydrogenase and fiber type were similar across all body weight statuses. CONCLUSIONS While metabolic adaptations to PA during weight loss occur in adults with severe obesity, FAO does not change. Resulting FAO during rest and exercise remains similar to adults with less severe obesity.
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Affiliation(s)
- Kazanna C. Hames
- Department of Health and Physical Activity, School of Education, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Endocrine Research Unit, Mayo Clinic, Rochester, MN 55905 USA
| | - Paul M. Coen
- Department of Health and Physical Activity, School of Education, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL 32804, USA
| | - Wendy C. King
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Steven J. Anthony
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Maja Stefanovic-Racic
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Frederico G.S. Toledo
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Jolene Brown
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Nicole Helbling
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - John J. Dubé
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - James P. DeLany
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - John J. Jakicic
- Department of Health and Physical Activity, School of Education, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Bret H. Goodpaster
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL 32804, USA
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Carneiro IP, Elliott SA, Siervo M, Padwal R, Bertoli S, Battezzati A, Prado CM. Is Obesity Associated with Altered Energy Expenditure? Adv Nutr 2016; 7:476-87. [PMID: 27184275 PMCID: PMC4863259 DOI: 10.3945/an.115.008755] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Historically, obese individuals were believed to have lower energy expenditure (EE) rates than nonobese individuals (normal and overweight), which, in the long term, would contribute to a positive energy balance and subsequent weight gain. The aim of this review was to critically appraise studies that compared measures of EE and its components, resting EE (REE), activity EE (AEE), and diet-induced thermogenesis (DIT), in obese and nonobese adults to elucidate whether obesity is associated with altered EE. Contrary to popular belief, research has shown that obese individuals have higher absolute REE and total EE. When body composition (namely the metabolically active component, fat-free mass) is taken into account, these differences between obese and nonobese individuals disappear, suggesting that EE in obese individuals is not altered. However, an important question is whether AEE is lower in obese individuals because of a decrease in overall physical activity or because of less energy expended while performing physical activity. AEE and DIT could be reduced in obese individuals, mostly because of unhealthy behavior (low physical activity, higher intake of fat). However, the current evidence does not support the hypothesis that obesity is sustained by lower daily EE or REE. Future studies, comparing EE between obese and nonobese and assessing potential physiologic abnormalities in obese individuals, should be able to better answer the question of whether these individuals have altered energy metabolism.
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Affiliation(s)
- Isabella P Carneiro
- Department of Agricultural, Food and Nutritional Science, Li Ka Shing Centre
| | - Sarah A Elliott
- Department of Agricultural, Food and Nutritional Science, Li Ka Shing Centre
| | - Mario Siervo
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Campus for Ageing and Vitality, Newcastle on Tyne, United Kingdom; and
| | - Raj Padwal
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Simona Bertoli
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food, Environmental and Nutritional Sciences, University of Milan, Milano, Italy
| | - Alberto Battezzati
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food, Environmental and Nutritional Sciences, University of Milan, Milano, Italy
| | - Carla M Prado
- Department of Agricultural, Food and Nutritional Science, Li Ka Shing Centre,
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Hatamoto Y, Yamada Y, Higaki Y, Tanaka H. A novel approach for measuring energy expenditure of a single sit-to-stand movement. Eur J Appl Physiol 2016; 116:997-1004. [PMID: 27017496 DOI: 10.1007/s00421-016-3355-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 03/09/2016] [Indexed: 11/26/2022]
Abstract
PURPOSE The purpose of this study was to quantify the energy expenditure (EE) of a sit-to-stand (STS) movement using a recently developed method and to examine the relationship between physical characteristics and the physiological demands of STS. METHODS Nineteen participants completed a multi-stage test at different STS frequencies of 6, 10, 15, 20 and 30 repetitions per minute. The expired gas, heart rate (HR) and rating of perceived exertion (RPE) were measured. The relationship between EE and STS frequency was obtained and the slope of the regression was quantified as the EE of an STS. RESULTS The gross EE and HR increased linearly as the STS frequency increased in all participants. The net EE of an STS was 0.92 ± 0.37 kJ. The EE of an STS increased as the height and weight increased, and these relationships were well fit by quadratic regression. The metabolic equivalent (Met) of performing 15 STSs per minute was 4.3 ± 1.0 Mets and RPE was 12 ± 1 over a total of 20. CONCLUSION This study demonstrated that the EE of an instantaneous movement can be quantified by relating the gross EE and different frequencies of movement. Using this method, we quantified the EE of an STS, which varied depending on participants' anthropometrics. Mets of repetitive STS movement ranged from 2.6 to 7.2. This physiological profile is useful when performing repetitive STS movements as a form of exercise.
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Affiliation(s)
- Yoichi Hatamoto
- The Fukuoka University Institute for Physical Activity, Fukuoka, Japan
| | - Yosuke Yamada
- The Fukuoka University Institute for Physical Activity, Fukuoka, Japan
- Department of Nutritional Science, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Yasuki Higaki
- The Fukuoka University Institute for Physical Activity, Fukuoka, Japan
- Graduate School of Sports and Health Science, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
| | - Hiroaki Tanaka
- The Fukuoka University Institute for Physical Activity, Fukuoka, Japan.
- Graduate School of Sports and Health Science, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan.
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Moehlecke M, Canani LH, Silva LOJE, Trindade MRM, Friedman R, Leitão CB. Determinants of body weight regulation in humans. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2016; 60:152-62. [PMID: 26910628 DOI: 10.1590/2359-3997000000129] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 10/07/2015] [Indexed: 11/21/2022]
Abstract
Body weight is regulated by the ability of hypothalamic neurons to orchestrate behavioral, endocrine and autonomic responses via afferent and efferent pathways to the brainstem and the periphery. Weight maintenance requires a balance between energy intake and energy expenditure. Although several components that participate in energy homeostasis have been identified, there is a need to know in more detail their actions as well as their interactions with environmental and psychosocial factors in the development of human obesity. In this review, we examine the role of systemic mediators such as leptin, ghrelin and insulin, which act in the central nervous system by activating or inhibiting neuropeptide Y, Agouti-related peptide protein, melanocortin, transcript related to cocaine and amphetamine, and others. As a result, modifications in energy homeostasis occur through regulation of appetite and energy expenditure. We also examine compensatory changes in the circulating levels of several peripheral hormones after diet-induced weight loss.
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Panchal SK, Poudyal H, Ward LC, Waanders J, Brown L. Modulation of tissue fatty acids by L-carnitine attenuates metabolic syndrome in diet-induced obese rats. Food Funct 2015; 6:2496-506. [PMID: 26190559 DOI: 10.1039/c5fo00480b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Obesity and dyslipidaemia are metabolic defects resulting from impaired lipid metabolism. These impairments are associated with the development of cardiovascular disease and non-alcoholic fatty liver disease. Correcting the defects in lipid metabolism may attenuate obesity and dyslipidaemia, and reduce cardiovascular risk and liver damage. L-Carnitine supplementation was used in this study to enhance fatty acid oxidation so as to ameliorate diet-induced disturbances in lipid metabolism. Male Wistar rats (8-9 weeks old) were fed with either corn starch or high-carbohydrate, high-fat diets for 16 weeks. Separate groups were supplemented with L-carnitine (1.2% in food) on either diet for the last 8 weeks of the protocol. High-carbohydrate, high-fat diet-fed rats showed central obesity, dyslipidaemia, hypertension, impaired glucose tolerance, hyperinsulinaemia, cardiovascular remodelling and non-alcoholic fatty liver disease. L-Carnitine supplementation attenuated these high-carbohydrate, high-fat diet-induced changes, together with modifications in lipid metabolism including the inhibition of stearoyl-CoA desaturase-1 activity, reduced storage of short-chain monounsaturated fatty acids in the tissues with decreased linoleic acid content and trans fatty acids stored in retroperitoneal fat. Thus, L-carnitine supplementation attenuated the signs of metabolic syndrome through inhibition of stearoyl-CoA desaturase-1 activity, preferential β-oxidation of some fatty acids and increased storage of saturated fatty acids and relatively inert oleic acid in the tissues.
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Affiliation(s)
- Sunil K Panchal
- Institute for Agriculture and the Environment, University of Southern Queensland, Toowoomba, QLD 4350, Australia.
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Influence of habitual physical activity on gastric emptying in healthy males and relationships with body composition and energy expenditure. Br J Nutr 2015; 114:489-96. [PMID: 26168984 DOI: 10.1017/s0007114515002044] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Although a number of studies have examined the role of gastric emptying (GE) in obesity, the influences of habitual physical activity level, body composition and energy expenditure (EE) on GE have received very little consideration. In the present study, we compared GE in active and inactive males, and characterised relationships with body composition (fat mass and fat-free mass) and EE. A total of forty-four males (active n 22, inactive n 22; BMI 21-36 kg/m2; percentage of fat mass 9-42%) were studied, with GE of a standardised (1676 kJ) pancake meal being assessed by the [13C]octanoic acid breath test, body composition by air displacement plethysmography, RMR by indirect calorimetry, and activity EE (AEE) by accelerometry. The results showed that GE was faster in active compared with inactive males (mean half-time (t 1/2): active 157 (sd 18) and inactive 179 (sd 21) min, P< 0.001). When data from both groups were pooled, GE t 1/2 was associated with percentage of fat mass (r 0.39, P< 0.01) and AEE (r - 0.46, P< 0.01). After controlling for habitual physical activity status, the association between AEE and GE remained, but not that for percentage of fat mass and GE. BMI and RMR were not associated with GE. In summary, faster GE is considered to be a marker of a habitually active lifestyle in males, and is associated with a higher AEE level and a lower percentage of fat mass. The possibility that GE contributes to a gross physiological regulation (or dysregulation) of food intake with physical activity level deserves further investigation.
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Energy balance and fitness in adult survivors of childhood acute lymphoblastic leukemia. Blood 2015; 125:3411-9. [PMID: 25814529 DOI: 10.1182/blood-2015-01-621680] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 03/16/2015] [Indexed: 11/20/2022] Open
Abstract
There is limited information on body composition, energy balance, and fitness among survivors of childhood acute lymphoblastic leukemia (ALL), especially those treated without cranial radiation therapy (CRT). This analysis compares these metrics among 365 ALL survivors with a mean age of 28.6 ± 5.9 years (149 treated with and 216 without CRT) and 365 age-, sex-, and race-matched peers. We also report risk factors for outcomes among survivors treated without CRT. Male survivors not exposed to CRT had abnormal body composition when compared with peers (% body fat, 26.2 ± 8.2 vs 22.7 ± 7.1). Survivors without CRT had similar energy balance but had significantly impaired quadriceps strength (-21.9 ± 6.0 Newton-meters [Nm]/kg, 60°/s) and endurance (-11.4 ± 4.6 Nm/kg, 300°/s), exercise capacity (-2.0 ± 2.1 ml/kg per minute), low-back and hamstring flexibility (-4.7 ± 1.6 cm), and dorsiflexion range of motion (-3.1 ± 0.9°) and higher modified total neuropathy scores (+1.6 ± 1.1) than peers. Cumulative asparaginase dose ≥120,000 IU/m(2) was associated with impaired flexibility, vincristine dose ≥39 mg/m(2) with peripheral neuropathy, glucocorticoid (prednisone equivalent) dose ≥8000 mg/m(2) with hand weakness, and intrathecal methotrexate dose ≥225 mg with dorsiflexion weakness. Physical inactivity was associated with hand weakness and decreased exercise capacity. Smoking was associated with peripheral neuropathy. Elimination of CRT from ALL therapy has improved, but not eliminated, body-composition outcomes. Survivors remain at risk for impaired fitness.
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Chaput JP, Ferraro ZM, Prud'homme D, Sharma AM. Widespread misconceptions about obesity. CANADIAN FAMILY PHYSICIAN MEDECIN DE FAMILLE CANADIEN 2014; 60:973-984. [PMID: 25392431 PMCID: PMC4229150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Affiliation(s)
- Jean-Philippe Chaput
- Assistant Professor of Pediatrics at the University of Ottawa and Junior Research Chair in Healthy Active Living and Obesity Research at the Children's Hospital of Eastern Ontario Research Institute in Ottawa.
| | - Zachary M Ferraro
- Researcher at the Children's Hospital of Eastern Ontario Research Institute
| | - Denis Prud'homme
- Professor of Human Kinetics, Associate Vice President of Research, and Scientific Director of the Institut de recherche de l'Hôpital Montfort in Ottawa
| | - Arya M Sharma
- Scientific Director of the Canadian Obesity Network and Professor and Endowed Chair in Obesity Research and Management at the University of Alberta in Edmonton
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DeLany JP, Dubé JJ, Standley RA, Distefano G, Goodpaster BH, Stefanovic-Racic M, Coen PM, Toledo FGS. Racial differences in peripheral insulin sensitivity and mitochondrial capacity in the absence of obesity. J Clin Endocrinol Metab 2014; 99:4307-14. [PMID: 25105736 PMCID: PMC4223429 DOI: 10.1210/jc.2014-2512] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
CONTEXT African-American women (AAW) have an increased risk of developing type 2 diabetes compared with Caucasian women (CW). Lower insulin sensitivity has been reported in AAW, but the reasons for this racial difference and the contributions of liver versus skeletal muscle are incompletely understood. OBJECTIVE We tested the hypothesis that young, nonobese AAW manifest lower insulin sensitivity specific to skeletal muscle, not liver, and is accompanied by lower skeletal muscle mitochondrial oxidative capacity. PARTICIPANTS AND MAIN OUTCOME MEASURES Twenty-two nonobese (body mass index 22.7 ± 3.1 kg/m(2)) AAW and 22 matched CW (body mass index 22.7 ± 3.1 kg/m(2)) underwent characterization of body composition, objectively assessed habitual physical activity, and insulin sensitivity with euglycemic clamps and stable-isotope tracers. Skeletal muscle biopsies were performed for lipid content, fiber typing, and mitochondrial measurements. RESULTS Peripheral insulin sensitivity was 26% lower in AAW (P < .01), but hepatic insulin sensitivity was similar between groups. Physical activity levels were similar between groups. Lower insulin sensitivity in AAW was not explained by total or central adiposity. Skeletal muscle triglyceride content was similar, but mitochondrial content was lower in AAW. Mitochondrial respiration was 24% lower in AAW and correlated with skeletal muscle insulin sensitivity (r = 0.33, P < .05). CONCLUSION When compared with CW, AAW have similar hepatic insulin sensitivity but a muscle phenotype characterized by both lower insulin sensitivity and lower mitochondrial oxidative capacity. These observations occur in the absence of obesity and are not explained by physical activity. The only factor associated with lower insulin sensitivity in AAW was mitochondrial oxidative capacity. Because exercise training improves both mitochondrial capacity and insulin sensitivity, we suggest that it may be of particular benefit as a strategy for diabetes prevention in AAW.
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Affiliation(s)
- James P DeLany
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15213
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Drenowatz C, Hand GA, Shook RP, Jakicic JM, Hebert JR, Burgess S, Blair SN. The association between different types of exercise and energy expenditure in young nonoverweight and overweight adults. Appl Physiol Nutr Metab 2014; 40:211-7. [PMID: 25647557 DOI: 10.1139/apnm-2014-0310] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
With decades of trends for decreasing activity during work and travel, exercise becomes an important contributor to total physical activity (PA) and energy expenditure. The purpose of this study was to examine the contribution of different types of exercise to the variability in energy expenditure and time spent at different PA intensities in young adults. Four hundred and seventeen adults (49.9% male; 46.2 overweight/obese) between 21 and 36 years of age provided valid objective PA and energy expenditure data, assessed via the SenseWear Armband (BodyMedia Inc.). Frequency and duration of participation in various exercise types was self-reported. Weight status was based on body mass index (BMI) (kg/m(2)) with body weight and height being measured according to standard procedures. Eighty-four percent of the participants reported regular exercise engagement with no difference in participation rate by sex or BMI category. Exercise time along with sex and ethnicity explained roughly 60% of the variability in total daily energy expenditure (TDEE) while the association between exercise and time spent in moderate to vigorous PA or being sedentary was low or nonsignificant. Engagement in endurance exercise and sports contributed predominantly to the variability in energy expenditure and PA in nonoverweight participants. In overweight/obese participants engagement in resistance exercise and swimming contributed significantly to variability in TDEE. Current exercise recommendations focus primarily on aerobic exercise, but results of the present study suggest that nonweight-bearing exercises, such as resistance exercise and swimming, contribute significantly to the variability in TDEE in overweight/obese adults, which would make these types of activities viable options for exercise interventions.
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Affiliation(s)
- Clemens Drenowatz
- Department of Exercise Science, University of South Carolina, Public Health Research Center, 921 Assembly Street, Columbia, SC 29208, USA
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DeLany JP, Kelley DE, Hames KC, Jakicic JM, Goodpaster BH. Effect of physical activity on weight loss, energy expenditure, and energy intake during diet induced weight loss. Obesity (Silver Spring) 2014; 22:363-70. [PMID: 23804562 PMCID: PMC4896218 DOI: 10.1002/oby.20525] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 06/03/2013] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Objective measurements of physical activity (PA), energy expenditure (EE) and energy intake can provide valuable information regarding appropriate strategies for successful sustained weight loss. DESIGN AND METHODS The total EE was examined by doubly labeled water, resting metabolic rate by indirect calorimetry, PA with activity monitors, and energy intake by the intake/balance technique in 116 severely obese undergoing intervention with diet alone (DO) or diet plus PA (D-PA). RESULTS Weight loss of 9.6 ± 6.8 kg resulted in decreased EE which was not minimized in the D-PA group. Comparing the highest and lowest quartiles of increase in PA revealed a lower decrease in TDEE (-122 ± 319 vs. -376 ± 305 kcal day⁻¹), elimination of the drop in AEE (83 ± 279 vs. -211 ± 284 kcal day⁻¹) and greater weight loss (13.0 ± 7.0 vs. 8.1 ± 6.3 kg). Increased PA was associated with greater adherence to energy restriction and maintenance of greater weight loss during months 7-12. CONCLUSION Noncompliance to prescribed PA in the DO and D-PA groups partially masked the effects of PA to increase weight loss and to minimize the reduced EE. Increased PA was also associated with improved adherence to prescribed caloric restriction. A strong recommendation needs to be made to improve interventions that promote PA within the context of behavioral weight loss interventions.
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Affiliation(s)
- James P DeLany
- Division of Endocrinology and Metabolism, Department of Medicine, School of Medicine, Pittsburgh, Pennsylvania
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