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Morrow S, Zhang K, Abood SK, Verbrugghe A. Website Investigation of Pet Weight Management-Related Information and Services Offered by Ontario Veterinary Practices. Vet Sci 2023; 10:674. [PMID: 38133225 PMCID: PMC10747973 DOI: 10.3390/vetsci10120674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/20/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023] Open
Abstract
Pet owners rely on information and advice from their veterinary practice to effectively manage their pet's weight. This study investigated weight management information and services displayed on practice websites in Ontario, Canada. Information collected from the websites of 50 randomly selected small and mixed-animal practices included practice and staff demographics and the type of weight management services, products, and information advertised or displayed. The most frequently advertised weight management service and product were nutritional counselling (34%) and therapeutic diets (25%), respectively. Current bodyweight measurement was advertised on just over half of the websites (54%), while physical therapy counselling was the least-advertised service (16%). Further statistical analyses were performed in an exploratory fashion to determine areas for future research. Binary logistic regression analyses were used to investigate the association between practice demographics and the type of weight management information advertised online. A maximum of two predictor variables were included in each regression model. Exploratory analyses indicated that when controlling for the number of veterinarians in each practice, having a higher number of veterinary technicians was associated with increased odds of a practice website advertising current bodyweight measurement by 80.1% (odds ratio (OR) = 1.80, p = 0.05). Additionally, when controlling the number of veterinary technicians, having a higher number of veterinarians was associated with increased odds of a practice website advertising sales of therapeutic diets by 119.0% (OR = 2.19, p = 0.04). When using corporate practices as reference, independently owned practices had decreased odds of advertising sales of treats and weight management accessories on their practice websites by 78.7% (OR = 0.21, p = 0.03). These preliminary results suggest that advertising weight management information is not prioritized on veterinary practice websites in Ontario, especially those with lower staff numbers. The findings of this study raise awareness on the current state of weight management promotion for pets on veterinary practice websites and highlight ways to improve upon a practice's online presence.
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Affiliation(s)
| | | | | | - Adronie Verbrugghe
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.M.); (K.Z.); (S.K.A.)
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Martins C, Gower BA, Hunter GR. Association between Fat-Free Mass Loss after Diet and Exercise Interventions and Weight Regain in Women with Overweight. Med Sci Sports Exerc 2022; 54:2031-2036. [PMID: 35797356 PMCID: PMC9669159 DOI: 10.1249/mss.0000000000002992] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE This study aimed to determine if percent fat-free mass loss (% FFML) after diet alone, diet plus aerobic, or diet plus resistance exercise is a predictor of weight regain in women with overweight. METHODS One hundred and forty-one premenopausal women with overweight (body mass index, 28 ± 1 kg·m -2 ; age, 35 ± 6 yr) enrolled in a weight loss program to achieve a body mass index <25 kg·m -2 (diet alone, diet plus resistance, or diet plus aerobic exercise) and were followed for 1 yr. Body weight and composition (with dual-energy x-ray absorptiometry) were measured at baseline, after weight loss, and at 1 yr. RESULTS Participants lost 12.1 ± 2.6 kg of body weight, 11.3 ± 2.5 kg of fat mass, and 0.5 ± 1.6 kg of fat-free mass during the weight loss intervention, followed by weight regain at 1 yr (6.0 ± 4.4 kg, 51.3% ± 37.8%; P < 0.001 for all). % FFML was -3.6 ± 12.4, and a greater % FFML was associated with more weight regain ( r = -0.216, P = 0.01, n = 141), even after adjusting for the intervention group ( β = -0.07; 95% confidence interval, -0.13 to -0.01; P = 0.017). CONCLUSIONS % FFML is a significant predictor of weight regain in premenopausal women with overweight. These results support strategies for conserving fat-free mass during weight loss, such as resistance training. Future research should try to identify the mechanisms, at the level of both appetite and energy expenditure, responsible for this association.
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Affiliation(s)
- Catia Martins
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL
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Moris JM, Heinold C, Blades A, Koh Y. Nutrient-Based Appetite Regulation. J Obes Metab Syndr 2022; 31:161-168. [PMID: 35718856 PMCID: PMC9284573 DOI: 10.7570/jomes22031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/03/2022] [Accepted: 06/11/2022] [Indexed: 12/03/2022] Open
Abstract
Regulation of appetite is dependent on crosstalk between the gut and the brain, which is a pathway described as the gut-brain axis (GBA). Three primary appetite-regulating hormones that are secreted in the gut as a response to eating a meal are glucagon-like peptide 1 (GLP-1), cholecystokinin (CCK), and peptide YY (PYY). When these hormones are secreted, the GBA responds to reduce appetite. However, secretion of these hormones and the response of the GBA can vary depending on the types of nutrients consumed. This narrative review describes how the gut secretes GLP-1, CCK, and PYY in response to proteins, carbohydrates, and fats. In addition, the GBA response based on the quality of the meal is described in the context of which meal types produce greater appetite suppression. Last, the beneficiary role of exercise as a mediator of appetite regulation is highlighted.
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Affiliation(s)
- Jose M Moris
- Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX, USA
| | - Corrinn Heinold
- Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX, USA
| | - Alexandra Blades
- Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX, USA
| | - Yunsuk Koh
- Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX, USA
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Ratsch BE, Levine D, Wakshlag J. Clinical Guide to Obesity and Nonherbal Nutraceuticals in Canine Orthopedic Conditions. Vet Clin North Am Small Anim Pract 2022; 52:939-958. [PMID: 35562213 DOI: 10.1016/j.cvsm.2022.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The typical canine rehabilitation patient with orthopedic disease may differ in its nutritional needs, with the assumption that most patients will be on a complete and balanced commercial dog food that is not enriched with agents for ameliorating their condition. For a significant number of rehabilitation patients, obesity is a major issue where hypocaloric diet plans are often implemented and are covered extensively elsewhere (VCNA Small Animal Practice May 2021). The focus of this article will be implementation of physical activity or structured physical exercise protocols and how they might be used in combination with a typical hypocaloric diet plan, a diet low in calories. Considering the limited information regarding physical activity or structured exercise programs in dogs, a human comparative assessment of efficacy is fundamental as a baseline of information regarding typical interventions. In addition, many of these long-term rehabilitation cases typically exhibit osteoarthritis (OA) and as part of case management, there is a need to implement nutrient or nutraceutical intervention to either diminish the progression of OA or help with pain control measures, particularly for the nonsteroidal anti-inflammatory intolerant patient. Nutraceutical intervention comes in many forms from botanicals to nutritional enhancement; botanicals will be covered elsewhere in this issue. This overview of nutraceuticals will cover nonbotanical interventions including fish oil, glucosamine/chondroitin, avocado/soybean unsaponifiables, undenatured collagen, green lipped mussel, and egg shell membrane supplementation.
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Affiliation(s)
- Barbara Esteve Ratsch
- Department of Physical Medicine, Evidensia Sørlandet Animal Hospital, Krittveien 2, Hamresanden 4656, Norway.
| | - David Levine
- Department of Health, Education and Professional Studies, University of Tennessee, Chattanooga, TN 37403, USA; Department of Physical Therapy, The University of Tennessee at Chattanooga, 615 McCallie Avenue Department #3253, Chattanooga, TN 37403, USA
| | - Joseph Wakshlag
- Department of Clinical Sciences, Cornell University College of Veteinary Medicine, 930 Campus Road, CPC - 3-536, Ithaca, NY 14853, USA
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5
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Ju SH, Yi HS. Implication of Sex Differences in Visceral Fat for the Assessment of Incidence Risk of Type 2 Diabetes Mellitus. Diabetes Metab J 2022; 46:414-416. [PMID: 35656564 PMCID: PMC9171154 DOI: 10.4093/dmj.2022.0089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Sang Hyeon Ju
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Hyon-Seung Yi
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
- Laboratory of Endocrinology and Immune System, Chungnam National University College of Medicine, Daejeon, Korea
- Corresponding author: Hyon-Seung Yi https://orcid.org/0000-0002-3767-1954 Laboratory of Endocrinology and Immune System, Chungnam National University College of Medicine, 282 Munhwa-ro, Jung-gu, Daejeon 35015, Korea E-mail:
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Khalafi M, Malandish A, Rosenkranz SK, Ravasi AA. Effect of resistance training with and without caloric restriction on visceral fat: A systemic review and meta-analysis. Obes Rev 2021; 22:e13275. [PMID: 33998135 DOI: 10.1111/obr.13275] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/05/2021] [Indexed: 12/29/2022]
Abstract
We performed a systematic review and meta-analysis to investigate the effect of resistance training (RT) with and without caloric restriction (CR) on visceral fat (VF). PubMed and Scopus were searched to identify original articles published through December 2020. Standardized mean differences and 95% confidence intervals (95% CIs) were determined, and separate analyses were conducted for RT versus control, and RT plus CR versus CR only. Thirty-four studies including 38 intervention arms and involving 2285 were included in the meta-analysis. RT effectively reduced VF [-24 (95% CI -0.34 to -0.13), p < 0.001; I2 = 4.17%, p = 0.40; 24 intervention arms] when compared with control. Based on subgroup analyses, reduction in VF was significant for individual with (p = 0.04) and without (p < 0.001) obesity as well as across medium-term (p = 0.001) and long-term (p = 0.002) interventions. Reduction in VF was significant for both middle-age (p = 0.03) and elderly (p = 0.001) adults but was not significant for pediatric (p = 0.08) participants. However, RT plus CR did not indicate superiority effect on VF [0.23 95% CI -0.04 to 0.51, p = 0.09; I2 = 58.76%, p = 0.003; 14 intervention arms] when compared with CR only. Our results confirm that RT may be effective for reducing VF, but adding RT with CR was not associated with a greater effect for reducing VF.
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Affiliation(s)
- Mousa Khalafi
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Abbas Malandish
- Department of Exercise Physiology, Faculty of Sport Sciences, Urmia University, Urmia, Iran
| | - Sara K Rosenkranz
- Department of Food, Nutrition, Dietetics and Health, Kansas State University, Manhattan, Kansas, USA
| | - Ali A Ravasi
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
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An KY, Kim S, Oh M, Lee HS, Yang HI, Park H, Lee JW, Jeon JY. Cardiopulmonary fitness but not muscular fitness associated with visceral adipose tissue mass. Arch Physiol Biochem 2021; 127:217-222. [PMID: 31232103 DOI: 10.1080/13813455.2019.1628066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE The purpose of this study is to identify the association between physical fitness (cardiopulmonary and musculoskeletal) and the distribution of abdominal fat in overweight and obese adults. METHODS Of the total 102 overweight and obese participants, 99 participants completed all measurements. Cardiopulmonary fitness was assessed by maximal oxygen consumption test and muscular fitness was assessed using 10 repetition max. Visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) were assessed by computed tomography (CT) at the level of lumbar spine 4-5. RESULTS Cardiopulmonary fitness was inversely associated with both VAT and SAT, while muscular fitness only inversely associated with SAT. Multiple linear regression analyses indicated that gender, age, and cardiopulmonary fitness, but not muscular fitness, were associated with VAT, and age, cardiopulmonary fitness, and muscular fitness were significantly associated with SAT. CONCLUSIONS Cardiopulmonary fitness is more closely related to both VAT and SAT while muscular fitness is related with SAT.
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Affiliation(s)
- Ki-Yong An
- Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, Canada
| | - Sue Kim
- International Health Care Center, Severance Hospital, Yonsei University Health System, Seoul, Republic of Korea
| | - Minsuk Oh
- Department of Health and Human Physiology, University of Iowa, Iowa City, IA, USA
| | - Hye-Sun Lee
- Department of Research Affairs, Biostatistics Collaboration Units, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyuk In Yang
- Department of Sport Industry Studies, Exercise Medicine and Rehabilitation Laboratory, Yonsei University, Seoul, Republic of Korea
| | - Hyuna Park
- Department of Sport Industry Studies, Exercise Medicine and Rehabilitation Laboratory, Yonsei University, Seoul, Republic of Korea
| | - Ji-Won Lee
- Department of Family Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Justin Y Jeon
- Department of Sport Industry Studies, Exercise Medicine and Rehabilitation Laboratory, Yonsei University, Seoul, Republic of Korea
- Exercise Medicine Center for Diabetes and Cancer Patients, ICONS, Yonsei University, Seoul, Republic of Korea
- Cancer Prevention Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
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Lee HS, Lee J. Effects of Exercise Interventions on Weight, Body Mass Index, Lean Body Mass and Accumulated Visceral Fat in Overweight and Obese Individuals: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052635. [PMID: 33807939 PMCID: PMC7967650 DOI: 10.3390/ijerph18052635] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/25/2021] [Accepted: 02/26/2021] [Indexed: 12/14/2022]
Abstract
(1) Background: Exercise interventions for overweight and obese individuals help reduce accumulated visceral fat, which is an indicator of cardiometabolic risk, but the effectiveness of these interventions is controversial. The purpose of this meta-analysis was to investigate the effectiveness of exercise interventions in overweight and obese individuals in order to reduce weight, body mass index (BMI), and accumulated visceral fat, and increase lean body mass. (2) Methods: Databases were used to select eligible studies for this meta-analysis. Randomized controlled trials with control and experimental groups were included. The degrees of effectiveness of the exercise interventions were computed to assess the benefits on reducing weight, BMI, and accumulated visceral fat, and increasing lean body mass. (3) Results: Sixteen studies were included in this meta-analysis. Participation in exercise interventions reduced weight (d = −0.58 (95% confidence interval (CI), −0.84–−0.31; p < 0.001; k = 9)), BMI (d = −0.50 (95% CI, −0.78–−0.21; p < 0.001; k = 7)), and accumulated visceral fat (d = −1.08 (95% CI, −1.60–−0.57; p < 0.001; k = 5)), but did not significantly increase lean body mass (d = 0.26 (95% CI, −0.11–0.63; p = 0.17; k = 6)). The average exercise intervention for overweight and obese individuals was of moderate to vigorous intensity, 4 times per week, 50 min per session, and 22 weeks duration. (4) Conclusions: Participating in exercise interventions has favorable effects on weight, BMI, and accumulated visceral fat. Further studies considering different modalities, intensities, durations, and measurements of fatness need to be conducted.
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Affiliation(s)
- Hyun Suk Lee
- Graduate School of Education, Chung-Ang University, Seoul 06974, Korea;
| | - Junga Lee
- Sports Medicine and Science, Global Campus, Kyung Hee University, Gyeonggi-do 17104, Korea
- Correspondence: ; Tel.: +82-010-9251-6079
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Body Composition Changes after a Weight Loss Intervention: A 3-Year Follow-Up Study. Nutrients 2021; 13:nu13010164. [PMID: 33430216 PMCID: PMC7825716 DOI: 10.3390/nu13010164] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/14/2020] [Accepted: 12/31/2020] [Indexed: 12/18/2022] Open
Abstract
Studies comparing different types of exercise-based interventions have not shown a consistent effect of training on long-term weight maintenance. The aim of this study was to compare the effects of exercise modalities combined with diet intervention on body composition immediately after intervention and at 3 years’ follow-up in overweight and obese adults. Two-hundred thirty-nine people (107 men) participated in a 6-month diet and exercise-based intervention, split into four randomly assigned groups: strength group (S), endurance group (E), combined strength and endurance group (SE), and control group (C). The body composition measurements took place on the first week before the start of training and after 22 weeks of training. In addition, a third measurement took place 3 years after the intervention period. A significant interaction effect (group × time) (p = 0.017) was observed for the fat mass percentage. It significantly decreased by 5.48 ± 0.65%, 5.30 ± 0.65%, 7.04 ± 0.72%, and 4.86 ± 0.65% at post-intervention for S, E, SE, and C, respectively. Three years after the intervention, the fat mass percentage returned to values similar to the baseline, except for the combined strength and endurance group, where it remained lower than the value at pre-intervention (p < 0.05). However, no significant interaction was discovered for the rest of the studied outcomes, neither at post-intervention nor 3 years later. The combined strength and endurance group was the only group that achieved lower levels of fat mass (%) at both post-intervention and 3 years after intervention, in comparison with the other groups.
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10
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Development and validation of prognostic models to estimate body weight loss in overweight and obese people. NUTR HOSP 2021; 38:511-518. [PMID: 33764152 DOI: 10.20960/nh.03425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Introduction Background: predicting weight loss outcomes from information collected from subjects before they start a weight management program is an objective strongly pursued by scientists who study energy balance. Objective: to develop and validate two prognostic models for the estimation of final body weight after a six-month intervention period. Material and methods: the present work was developed following the TRIPOD standard to report prognostic multivariable prediction models. A multivariable linear regression analysis was applied to 70 % of participants to identify the most relevant variables and develop the best prognostic model for body weight estimation. Then, 30 % of the remaining sample was used to validate the model. The study involved a 6-month intervention based on 25-30 % caloric restriction and exercise. A total of 239 volunteers who had participated in the PRONAF study, aged 18 to 50 years, with overweight or obesity (body mass index: 25-34.9 kg/m2), were enrolled. Body composition was estimated by dual-energy X-ray absorptiometry (DXA) and by hand-to-foot bioelectrical impedance (BIA) analysis. Results: prognostic models were developed and validated with a high correlation (0.954 and 0.951 for DXA and BIA, respectively), with the paired t-tests showing no significant differences between estimated and measured body weights. The mean difference, standard error, and 95 % confidence interval of the DXA model were 0.067 ± 0.547 (-1.036-1.170), and those of the BIA model were -0.105 ± 0.511 (-1.134-0.924). Conclusions: the models developed in this work make it possible to calculate the final BW of any participant engaged in an intervention like the one employed in this study based only on baseline body composition variables.
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11
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Williams R, Periasamy M. Genetic and Environmental Factors Contributing to Visceral Adiposity in Asian Populations. Endocrinol Metab (Seoul) 2020; 35:681-695. [PMID: 33397033 PMCID: PMC7803598 DOI: 10.3803/enm.2020.772] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 12/12/2020] [Indexed: 12/20/2022] Open
Abstract
Obesity-associated metabolic illnesses are increasing at an alarming rate in Asian countries. A common feature observed in the Asian population is a higher incidence of abdominal obesity-the "skinny-fat" Asian syndrome. In this review, we critically evaluate the relative roles of genetics and environmental factors on fat distribution in Asian populations. While there is an upward trend in obesity among most Asian countries, it appears particularly conspicuous in Malaysia. We propose a novel theory, the Malaysian gene-environment multiplier hypothesis, which explains how ancestral variations in feast-and-famine cycles contribute to inherited genetic predispositions that, when acted on by modern-day stressors-most notably, urbanization, westernization, lifestyle changes, dietary transitions, cultural pressures, and stress-contribute to increased visceral adiposity in Asian populations. At present, the major determinants contributing to visceral adiposity in Asians are far from conclusive, but we seek to highlight critical areas for further research.
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Affiliation(s)
- Rachel Williams
- Department of Internal Medicine, University of Central Florida (UCF) College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Muthu Periasamy
- Department of Internal Medicine, University of Central Florida (UCF) College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
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12
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Yarizadeh H, Eftekhar R, Anjom-Shoae J, Speakman JR, Djafarian K. The Effect of Aerobic and Resistance Training and Combined Exercise Modalities on Subcutaneous Abdominal Fat: A Systematic Review and Meta-analysis of Randomized Clinical Trials. Adv Nutr 2020; 12:179-196. [PMID: 32804997 PMCID: PMC7849939 DOI: 10.1093/advances/nmaa090] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/13/2020] [Accepted: 07/07/2020] [Indexed: 12/18/2022] Open
Abstract
Subcutaneous abdominal adipose tissue (SAT), is the largest fat depot and major provider of free fatty acids to the liver. Abdominal fat is indirectly (via increased levels of low-grade inflammation) correlated with many of the adverse health effects of obesity. Although exercise is one of the most prominent components of obesity management, its effects on SAT are still unclear. The aim of this study was to investigate the independent effects of aerobic training (AT) and resistance training (RT) modalities and combined exercise modalities on SAT in adults. PubMed, SCOPUS, and Google Scholar were searched to find relevant publications up to November 2018. The effect sizes were represented as weighted mean difference (WMD) and 95% CIs. Between-study heterogeneity was examined using the I2 test. Overall, 43 identified trials that enrolled 3552 subjects (2684 women) were included. After removal of outliers, combining effect sizes indicated a significant effect of AT (WMD: -13.05 cm2; 95% CI: -18.52, -7.57; P < 0.001), RT (WMD: -5.39 cm2; 95% CI: -9.66, -1.12; P = 0.01), and combined exercise training (CExT; WMD: -28.82 cm2; 95% CI: -30.83, -26.81; P < 0.001) on SAT relative to control groups. Pooled effect sizes demonstrated a significant effect of AT on SAT compared with a CExT group (WMD: 11.07 cm2; 95% CI: 1.81, 20.33; P = 0.01). However, when comparing the AT and RT groups, no significant difference was seen in SAT (WMD: -0.73 cm2; 95% CI: -4.50, 3.04; P = 0.70). Meta-analysis of relevant trials indicated that AT, RT, and CExT lead to SAT reduction. Aerobic exercise was shown to produce greater efficacy in decreasing SAT.
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Affiliation(s)
- Habib Yarizadeh
- Students' Scientific Center, Tehran University of Medical Sciences, Tehran, Iran,Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Eftekhar
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Javad Anjom-Shoae
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - John R Speakman
- School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom,State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
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13
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Ayenigbara IO. The Accumulation of Visceral Fat and Preventive Measures among the Elderly. CARDIOVASCULAR INNOVATIONS AND APPLICATIONS 2020. [DOI: 10.15212/cvia.2019.0573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Visceral fat is a specific fat that is produced in the body, transformed into cholesterol, and circulated in the blood to other parts of the body. The circulated cholesterol usually in the form of low-density lipoproteins forms plaque on the walls of the arteries, thereby constricting
and blocking them and preventing the free flow of nutrients to various vital organs in the body. Visceral fat is deleterious to the health of elderly people because it is mostly found in the region of the abdomen that houses vital organs such as the pancreas, liver, and digestive tract, and
it further affects the normal functioning of hormones in the body. Globally, 15 million people die of a noncommunicable disease (NCD) annually between the age of 30 years and the age of 69 years, and there is an increase in NCD morbidity among people older than 70 years. Accumulated visceral
fat in elderly people could have deleterious health consequences, as it is a predisposing factor for many other NCDs and chronic health conditions. Sedentary lifestyle, unhealthy eating, stress, and inactivity are the major causes of excessive visceral fat. However, measures to prevent the
accumulation of visceral fat are straightforward, and impressive results are achieved with regular physical exercise, healthy diet choices, and proper stress management.
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Kasiakogias A, Sharma S. Exercise: The ultimate treatment to all ailments? Clin Cardiol 2020; 43:817-826. [PMID: 32506511 PMCID: PMC7403692 DOI: 10.1002/clc.23369] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 12/29/2022] Open
Abstract
Extensive clinical research has provided robust evidence that exercise is a cost‐effective measure to substantially alleviate the burden of a large number of diseases, many of which belong to the cardiovascular (CV) spectrum. In terms of cardiac benefit, the positive effects of exercise are attributed to improvements in standard risk factors for atherosclerosis, as well as to its positive impact on several pathophysiological mechanisms for CV diseases. For secondary prevention, exercise, optimally in the context of a cardiac rehabilitation program, has been shown to improve functional capacity and survival. Clinicians should encourage physical activity and provide exercise recommendations for all patients, taking into consideration any underlying pathology. In the present review, the benefits of exercise for the prevention and treatment of major CV risk factors and heart conditions are analyzed.
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Affiliation(s)
| | - Sanjay Sharma
- Cardiology Clinical and Academic Group, St George's University of London, London, UK
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Thomas JM, Kern PA, Bush HM, McQuerry KJ, Black WS, Clasey JL, Pendergast JS. Circadian rhythm phase shifts caused by timed exercise vary with chronotype. JCI Insight 2020; 5:134270. [PMID: 31895695 DOI: 10.1172/jci.insight.134270] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 12/19/2019] [Indexed: 12/24/2022] Open
Abstract
BACKGROUNDThe circadian system entrains behavioral and physiological rhythms to environmental cycles, and modern lifestyles disrupt this entrainment. We investigated a timed exercise intervention to phase shift the internal circadian rhythm.METHODSIn 52 young, sedentary adults, dim light melatonin onset (DLMO) was measured before and after 5 days of morning (10 hours after DLMO; n = 26) or evening (20 hours after DLMO; n = 26) exercise. Phase shifts were calculated as the difference in DLMO before and after exercise.RESULTSMorning exercise induced phase advance shifts (0.62 ± 0.18 hours) that were significantly greater than phase shifts from evening exercise (-0.02 ± 0.18 hours; P = 0.01). Chronotype also influenced the effect of timed exercise. For later chronotypes, both morning and evening exercise induced phase advances (0.54 ± 0.29 hours and 0.46 ±0.25 hours, respectively). In contrast, earlier chronotypes had phase advances from morning exercise (0.49 ± 0.25 hours) but had phase delays from evening exercise (-0.41 ± 0.29 hours).CONCLUSIONLate chronotypes - those who experience the most severe circadian misalignment - may benefit from phase advances induced by exercise in the morning or evening, but evening exercise may exacerbate circadian misalignment in early chronotypes. Thus, personalized exercise timing prescription, based on chronotype, could alleviate circadian misalignment in young adults.TRIAL REGISTRATIONTrial registration can be found at www.clinicaltrials.gov (NCT04097886).FUNDINGFunding was supplied by NIH grants UL1TR001998 and TL1TR001997, the Barnstable Brown Diabetes and Obesity Center, the Pediatric Exercise Physiology Laboratory Endowment, the Arvle and Ellen Turner Thacker Research Fund, and the University of Kentucky.
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Affiliation(s)
- J Matthew Thomas
- Department of Kinesiology and Health Promotion.,Center for Clinical and Translational Science
| | - Philip A Kern
- Center for Clinical and Translational Science.,The Department of Internal Medicine, Division of Endocrinology.,Barnstable Brown Diabetes and Obesity Center
| | - Heather M Bush
- Center for Clinical and Translational Science.,Department of Biostatistics
| | | | | | - Jody L Clasey
- Department of Kinesiology and Health Promotion.,Center for Clinical and Translational Science.,Barnstable Brown Diabetes and Obesity Center
| | - Julie S Pendergast
- Center for Clinical and Translational Science.,Barnstable Brown Diabetes and Obesity Center.,Department of Biology, and.,Saha Cardiovascular Research Center, University of Kentucky, Lexington, Kentucky, USA
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16
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Xu S, Zhang J, Dong Y, Chen R, Xu W, Tan Z, Gao L, Shang L. The PROMOTE study (High-protein and resistance-training combination in overweight and obesity) for short-term weight loss and long-term weight maintenance for Chinese people: a protocol for a pilot randomized controlled trial. Trials 2020; 21:47. [PMID: 31915038 PMCID: PMC6950796 DOI: 10.1186/s13063-019-3954-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 12/03/2019] [Indexed: 11/23/2022] Open
Abstract
Background It is very important for clinicians and dieticians to explore reasonable weight management strategies for obese people that address both short-term weight loss and subsequent weight maintenance. We hypothesized that resistance training combined with a high-protein diet would result in similar short-term weight loss but better long-term weight maintenance than either a conventional low-fat diet control or a high-protein diet alone. Methods/design This is an 8-week randomized parallel controlled trial followed by a 24-week observational follow-up study. A 48-week supplementary follow-up study will be carried out if necessary. The study will be conducted between June 2019 and October 2020. The 90 overweight or obese participants will be randomly assigned to the conventional low-fat diet group, the high-protein diet group and the high-protein diet and resistance training combination group. Primary outcomes are body weight change at week 8 and week 24 compared with the baseline level. Discussion High-quality research on the effect of a high-protein diet combined resistance training on weight loss and weight maintenance is limited in the Chinese population. Our study will provide a basis for obesity management in China and will promote the development of exercise- and diet-related studies. Trial registration Chinese Clinical Trial Registry, ChiCTR1900023841. Registered on 14 June 2019.
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Affiliation(s)
- Shaoyong Xu
- Department of Health Statistics, Shaanxi Key Laboratory of Free Radical Biology and Medicine and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University of PLA, Changle West Road No. 169, Xi'an, 710032, Shaanxi, China.,Department of Endocrinology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangyang, 441021, Hubei, China
| | - Juan Zhang
- Department of Endocrinology, 3201 Hospital of Xi'an Jiao tong University Health Science Center, 783 Tianhan Road, Hanzhong, 723000, Shaanxi, China
| | - Yuxiang Dong
- Department of Clinical Nutrition, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangyang City, 441021, Hubei, China
| | - Ruikun Chen
- Department of Endocrinology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangyang, 441021, Hubei, China
| | - Wenlei Xu
- Department of Endocrinology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangyang, 441021, Hubei, China
| | - Zhijun Tan
- Department of Health Statistics, Shaanxi Key Laboratory of Free Radical Biology and Medicine and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University of PLA, Changle West Road No. 169, Xi'an, 710032, Shaanxi, China
| | - Ling Gao
- Department of Endocrinology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangyang, 441021, Hubei, China.
| | - Lei Shang
- Department of Health Statistics, Shaanxi Key Laboratory of Free Radical Biology and Medicine and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University of PLA, Changle West Road No. 169, Xi'an, 710032, Shaanxi, China.
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17
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Kesztyüs D, Erhardt J, Schönsteiner D, Kesztyüs T. Therapeutic Treatment for Abdominal Obesity in Adults. DEUTSCHES ARZTEBLATT INTERNATIONAL 2019; 115:487-493. [PMID: 30135008 DOI: 10.3238/arztebl.2018.0487] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 11/17/2017] [Accepted: 04/03/2018] [Indexed: 01/20/2023]
Abstract
BACKGROUND Abdominal obesity, an accumulation of fat in the abdominal region, is a risk factor for several non-communicable diseases. This review aims to identify non-surgical treatment options for abdominal obesity in adults. Interventions with behavioral, dietary, physical activity, or pharmaceutical components were compared to control conditions. METHODS A systematic literature research for randomized controlled trials was conducted in Medline, Embase, and the Cochrane Central Register of Controlled Trials according to a prespecified and registered protocol (PROSPERO CRD42017057898). RESULTS Out of 2954 articles, 15 studies with 2918 participants remained after applying inclusion and exclusion criteria. Altogether the programs achieved a -2.65cm (95% confidence interval (CI) [-3.77, -1.53]) reduction in waist circumference (WC), as a measure of abdominal obesity. Eight behavioral interventions reduced WC by -1.88cm (95% CI [-2.55, -1.22]), and six combined interventions with behavioral plus dietary and/or physical activity components by -4.11cm (95% CI [-6.17, -2.05]). The only pharmaceutical trial did not find any effect on WC. CONCLUSION Overall, the identified interventions showed a moderate effect on WC. One reason may be that in most studies WC was a secondary outcome parameter, while only a small number of interventions primarily targeted abdominal obesity. Further research regarding the treatment of abdominal obesity is urgently needed.
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Affiliation(s)
- Dorothea Kesztyüs
- Ulm University, Institute of General Medicine, Ulm, Germany; Beuth University of Applied Sciences, Institute for Distance Learning, Berlin, Germany; Ulm University of Applied Sciences, Department of Computer Science, Ulm, Germany; Ulm University, Institute of Medical Systems Biology, Ulm, Germany
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18
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Beaudry KM, Devries MC. Nutritional Strategies to Combat Type 2 Diabetes in Aging Adults: The Importance of Protein. Front Nutr 2019; 6:138. [PMID: 31555655 PMCID: PMC6724448 DOI: 10.3389/fnut.2019.00138] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 08/13/2019] [Indexed: 12/14/2022] Open
Abstract
The prevalence of pre-diabetes (PD) and type II diabetes (T2D) has risen dramatically in recent years affecting an estimated 422 million adults worldwide. The risk of T2D increases with age, with the sharpest rise in diagnosis occurring after age 40. With age, there is also a progressive decline in muscle mass starting after the age of 30. The decline in muscle mass and function due to aging is termed sarcopenia and immediately precedes the sharp rise in T2D. The purpose of the current review is to discuss the role of protein to attenuate declines in muscle mass and insulin sensitivity to prevent T2D and sarcopenia in aging adults. The current recommended dietary allowance for protein consumption is set at 0.8 g/kg/day and is based on dated studies on young healthy men and may not be sufficient for older adults. Protein consumption upwards of 1.0-1.5 g/kg/day in older adults is able to induce improvements in glycemic control and muscle mass. Obesity, particularly central or visceral obesity is a major risk factor in the development of PD and T2D. However, the tissue composition of weight loss in older adults includes both lean body mass and fat mass and therefore may have adverse metabolic consequences in older adults who are already at a high risk of lean body mass loss. High protein diets have the ability to increase weight loss while preserving lean body mass therefore inducing "high-quality weight loss," which provides favorable metabolic changes in older adults. High protein diets also induce beneficial outcomes on glycemic markers due to satiety, lowered post-prandial glucose response, increased thermogenesis, and the ability to decrease rates of muscle protein breakdown (MPB). The consumption of dairy specific protein consumption has also been shown to improve insulin sensitivity by improving body composition, enhancing insulin release, accelerating fat oxidation, and stimulating rates of muscle protein synthesis (MPS) in older adults. Exercise, specifically resistance training, also works synergistically to attenuate the progression of PD and T2D by further stimulating rates of MPS thereby increasing muscle mass and inducing favorable changes in glycemic control independent of lean body mass increases.
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Affiliation(s)
- Kayleigh M Beaudry
- Department of Kinesiology, Faculty of Applied Health Sciences, University of Waterloo, Waterloo, ON, Canada
| | - Michaela C Devries
- Department of Kinesiology, Faculty of Applied Health Sciences, University of Waterloo, Waterloo, ON, Canada
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19
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Hunter GR, Singh H, Carter SJ, Bryan DR, Fisher G. Sarcopenia and Its Implications for Metabolic Health. J Obes 2019; 2019:8031705. [PMID: 30956817 PMCID: PMC6431367 DOI: 10.1155/2019/8031705] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 01/22/2019] [Accepted: 02/21/2019] [Indexed: 01/06/2023] Open
Abstract
Sarcopenia not only affects the ability to lead an active lifestyle but also contributes to increased obesity, reduced quality of life, osteoporosis, and metabolic health, in part due to reduced locomotion economy and ease. On the other hand, increased obesity, decreased quality of life, and reduced metabolic health also contribute to sarcopenia. The purpose of this mini-review is to discuss the implications sarcopenia has for the development of obesity and comorbidities that occur with aging.
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Affiliation(s)
- Gary R. Hunter
- Department of Nutrition Science, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Harshvardhan Singh
- Department of Physical Therapy, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Stephen J. Carter
- Department of Kinesiology, School of Public Health–Bloomington, Indiana University, Bloomington, IN, USA
| | - David R. Bryan
- Department of Nutrition Science, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Gordon Fisher
- Department of Human Studies, University of Alabama at Birmingham, Birmingham, AL, USA
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20
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Rao S, Pandey A, Garg S, Park B, Mayo H, Després JP, Kumbhani D, de Lemos JA, Neeland IJ. Effect of Exercise and Pharmacological Interventions on Visceral Adiposity: A Systematic Review and Meta-analysis of Long-term Randomized Controlled Trials. Mayo Clin Proc 2019; 94:211-224. [PMID: 30711119 PMCID: PMC6410710 DOI: 10.1016/j.mayocp.2018.09.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 09/07/2018] [Accepted: 09/27/2018] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To assess the effectiveness of exercise and pharmacotherapy interventions in reducing visceral adipose tissue (VAT). PATIENTS AND METHODS A systematic search of Ovid MEDLINE, Scopus, Web of Science, Cochrane Library, ClinicalTrials.gov, New York Academy of Science Grey Literature Report, and OpenGrey was combined with hand searches of existing literature. A total of 2515 titles and abstracts were reviewed. Only randomized controlled trials evaluating the effectiveness of monitored exercise or pharmacological interventions in reducing VAT by using computed tomography or magnetic resonance imaging during a sustained intervention period (≥6 months) were included. Data were independently extracted by reviewers according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and assessed for quality and risk of bias. Separate analyses for each intervention were performed using random effect models, with pooled estimates of the change in VAT area (in centimeters squared) from baseline to follow-up reported as standardized mean difference (SMD; with 95% CI). RESULTS A total of 3602 participants from 17 randomized controlled trials were included in the final analysis. Both exercise and pharmacological interventions were associated with significant reductions in VAT: small reduction with pharmacological interventions (SMD, -0.27; 95% CI, -0.47 to -0.07; P=.02) and more substantial reductions with exercise interventions (SMD, -0.54; 95% CI, -0.63 to -0.46; P<.001). The mean absolute VAT reduction was greater in pharmacological trials than in exercise trials. Meta-regression exhibited a linear correlation between VAT and weight loss (R2=0.52 for exercise and R2=0.88 for pharmacological interventions), but VAT reduction relative to weight loss differed by intervention type. CONCLUSION Exercise interventions resulted in greater reduction in VAT relative to weight loss than did pharmacological interventions. A preferential reduction in VAT may be clinically meaningful when monitoring success of interventions because weight loss alone may underestimate benefits.
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Affiliation(s)
- Shreya Rao
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Ambarish Pandey
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas; Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Sushil Garg
- Department of Internal Medicine, University of Minnesota Medical Center, Minneapolis
| | - Bryan Park
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Helen Mayo
- Health Sciences Digital Library and Learning Center, University of Texas Southwestern Medical Center, Dallas
| | | | - Dharam Kumbhani
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas; Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - James A de Lemos
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas; Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Ian J Neeland
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas; Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas.
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21
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Friedenreich CM, Ruan Y, Duha A, Courneya KS. Exercise Dose Effects on Body Fat 12 Months after an Exercise Intervention: Follow-up from a Randomized Controlled Trial. J Obes 2019; 2019:3916416. [PMID: 30805213 PMCID: PMC6363238 DOI: 10.1155/2019/3916416] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 12/09/2018] [Accepted: 12/30/2018] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Exercise interventions can result in weight loss, which is associated with reductions in disease risk. It is unknown how the volume of exercise prescribed in a one-time exercise intervention impacts long-term body fatness. We compared 24-month body fat changes among postmenopausal women previously prescribed 300 versus 150 minutes/week of exercise in a year-long exercise intervention trial. METHODS The Breast Cancer and Exercise Trial in Alberta (BETA) was a two-centred randomized controlled trial in Alberta, Canada. The trial consisted of a 12-month intervention and 12-month observation period. For the intervention, participants were randomized to either a moderate-volume exercise group (150 min/week) or a high-volume exercise group (300 min/week). Participants in this study were 334 inactive postmenopausal women who had been followed-up to 24 months. The primary outcome for this study was 24-month change in total body fat using dual energy X-ray absorptiometry scans. Other measures included weight, waist and hip circumferences, subcutaneous and intra-abdominal fat from computed tomography scans, and lean mass. Researchers were blinded to randomization group when measuring body fat. RESULTS Both groups self-reported ∼180 minutes/week moderate-vigorous activity at 24 months. No statistically significant difference was found in total body fat at 24 months between the two groups. Statistically significant effects (comparing high versus moderate groups) were found for BMI (least-square mean change (95% CI): -0.66 (-0.97, -0.36) versus -0.25 (-0.55, 0.05) kg/m2, P=0.04), waist-to-hip ratio (-0.033 (-0.040, -0.026) versus -0.023 (-0.030, -0.016), P=0.05), and subcutaneous abdominal fat area (-32.18 (-39.30, -25.06) versus -22.20 (-29.34, -15.05) cm2, P=0.04). CONCLUSION Prescribing 300 versus 150 minutes/week of exercise to inactive postmenopausal women resulted in some long-term greater decreases in measures of body composition but no overall differences in total body fat loss. This trail is registered with NCT01435005.
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Affiliation(s)
- Christine M. Friedenreich
- Department of Cancer Epidemiology and Prevention Research, CancerControl Alberta, Alberta Health Services, Calgary, Alberta, Canada
- Departments of Oncology and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Yibing Ruan
- Department of Cancer Epidemiology and Prevention Research, CancerControl Alberta, Alberta Health Services, Calgary, Alberta, Canada
| | - Aalo Duha
- Cross Cancer Institute, CancerControl Alberta, Alberta Health Services, Edmonton, Alberta, Canada
| | - Kerry S. Courneya
- Faculty of Physical Education and Recreation, University of Alberta, Edmonton, Alberta, Canada
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22
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Stotzer US, Pisani GFD, Canevazzi GHR, Shiguemoto GE, Duarte ACGDO, Perez SEDA, Selistre-de-Araújo HS. Benefits of resistance training on body composition and glucose clearance are inhibited by long-term low carbohydrate diet in rats. PLoS One 2018; 13:e0207951. [PMID: 30532163 PMCID: PMC6286018 DOI: 10.1371/journal.pone.0207951] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 10/28/2018] [Indexed: 01/01/2023] Open
Abstract
Background/Objectives Regular exercise training is effective to altering many markers of metabolic syndrome and its effects are strongly influenced by the type of consumed diet. Nowadays, resistance training (RT) has been frequently associated with low-carbohydrate high-fat diet (LCD). After long term these diets causes body weight (BW) regain with deleterious effects on body composition and metabolic risk factors. The effects of RT associated with long-term LCD on these parameters remain unexplored. We aimed to investigate the effects of RT when associated with long-term LCD on BW, feed efficiency, body composition, glucose homeostasis, liver parameters and serum biochemical parameters during BW regain period in rats. Subjects/Methods Male Sprague–Dawley rats were fed with LCD (LC groups) or standard diet (STD) (ST groups). After 10 weeks-diet animals were separated into sedentary (Sed-LC and Sed-ST) and resistance-trained (RT-LC and RT-ST) groups (N = 8/group). RT groups performed an 11-week climbing program on a ladder with progressive load. Dual x-ray absorptiometry, glucose tolerance tests and insulin tolerance tests were performed at weeks 10 and 20. Liver and serum were collected at week 21. Results RT reduced feed efficiency, BW gain, liver fat and total and LDL cholesterol, and improved body composition and glucose clearance in animals fed on STD. In those fed with LCD, RT reduced caloric intake, BW regain, liver fat and serum triglycerides levels. However, improvement in body composition was inhibited and bone mineral density and glucose clearance was further impaired in this association. Conclusions The LCD nullifies the beneficial effects of RT on body composition, glucose homeostasis and impairs some health parameters. Our results do not support the association of RT with LCD in a long term period.
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Affiliation(s)
- Uliana Sbeguen Stotzer
- Department of Physiological Sciences, Federal University of São Carlos, São Carlos, SP, Brazil
- * E-mail:
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Differences in Glucose Metabolism Among Women With Spinal Cord Injury May Not Be Fully Explained by Variations in Body Composition. Arch Phys Med Rehabil 2018; 100:1061-1067.e1. [PMID: 30316957 DOI: 10.1016/j.apmr.2018.08.191] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 07/26/2018] [Accepted: 08/18/2018] [Indexed: 01/25/2023]
Abstract
OBJECTIVE To investigate the differences in glucose metabolism among women with paraplegic, and tetraplegic spinal cord injury (SCI) in comparison to their able-bodied (AB) counterparts after adjusting for differences in body composition. DESIGN Cross-sectional study. After an overnight fast, each participant consumed a 75-g glucose solution for oral glucose tolerance test (OGTT). Blood glucose, insulin, and C-peptide concentrations were analyzed before and 30, 60, 90, and 120 minutes after ingesting glucose solution. Insulin sensitivity index (ISI) was estimated using the Matsuda index. Percentage fat mass (%FM) and total body lean mass (TBLM) were estimated using data from dual-energy x-ray absorptiometry. Visceral fat (VF) was quantified using computed tomography. Outcome measures were compared among groups using analysis of covariance with %FM (or VF) and TBLM as covariates. SETTING Research university. PARTICIPANTS Women (N=42) with SCI (tetraplegia: n=8; paraplegia: n=14) and their race-, body mass index-, and age-matched AB counterparts (n=20). INTERVENTIONS Not applicable. RESULTS At fasting, there was no difference in glucose homeostasis (glucose, insulin, C-peptide concentrations) among 3 groups of women. In contrast, glucose, insulin, and C-peptide concentrations at minute 120 during OGTT were higher in women with tetraplegia versus women with paraplegia and AB women (P<.05, adjusted for TBLM and %FM). In addition, women with tetraplegia had lower ISI (P<.05, adjusted for TBLM and %FM) versus AB women. These differences remained after adjusting for VF and TBLM. CONCLUSION Our study confirms that impaired glucose metabolism among women with tetraplegia may not be fully explained by changes in their body composition. Future studies exploring additional factors involved in glucose metabolism are warranted.
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Exercise training and/or diet on reduction of intra-abdominal adipose tissue and risk factors for cardiovascular disease. Eur J Clin Nutr 2018; 73:1063-1068. [PMID: 30250134 DOI: 10.1038/s41430-018-0318-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 08/15/2018] [Accepted: 09/05/2018] [Indexed: 11/08/2022]
Abstract
BACKGROUND/OBJECTIVES To test the effects of weight loss with and without exercise training (aerobic or resistance) on intra-abdominal adipose tissue (IAAT) and risk factors for cardiovascular disease (CVD). Additionally, CVD risk factors was evaluated before and after weight loss using previously established IAAT cut-points. SUBJECTS/METHODS One hundred twenty-two overweight premenopausal women were randomly assigned to one of three groups: (1) diet only (Diet); (2) diet and aerobic training (Diet + AT); or (3) diet and resistance training (Diet + RT); until a BMI of < 25 kg/m2 was reached. Computerized tomography was used to measure IAAT and blood lipids were measured by assay. Evaluations were made before and after weight loss. RESULTS Though no group-by-time effects were found after weight loss, we observed significant time effects for: IAAT (-38.0%, P < 0.001), total cholesterol (TC) (-2.2%, P = 0.008), low-density lipoprotein cholesterol (LDL-C) (-4.8%, P < 0.001), high-density lipoprotein cholesterol (HDL-C) (+20.2%, P < 0.001), triglycerides (-18.7%, P < 0.001), TC/HDL-C (-16.3%, P < 0.001), and LDL-C/HDL-C (-18.0%, P < 0.001). Following weight loss, 40.2% of all participants reduced IAAT to < 40 cm2 (IAAT associated with low CVD risk). Furthermore, only 2.5% of participants had an IAAT > 110 cm2 (IAAT associated with high CVD risk) after weight loss. We also observed that decreases of IAAT were associated with decreased CVD risk factors after weight loss independent of race, changes in %fat mass and changes in maximal oxygen uptake. CONCLUSIONS Caloric restriction leading to significant weight loss with or without exercise training appears to be equally effective for reducing IAAT and CVD risk factors.
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Abdul Aziz NS, Shahar S, Ambak R, Mohamad Nor NS, Jamil AT, Aris T. Influence of co-morbidity on body composition changes after weight loss intervention among overweight housewives: a follow-up study of the MyBFF@home. BMC WOMENS HEALTH 2018; 18:115. [PMID: 30066631 PMCID: PMC6069513 DOI: 10.1186/s12905-018-0600-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background Obesity is a risk factor for co-morbidities such as diabetes, hypertension, osteoarthritis and cardiovascular diseases. However, it is unclear if the presence of co-morbidities has any effect on the magnitude of body composition changes following weight reduction programmes. Thus, this study aimed to determine changes in body composition among obese housewives with and without co-morbidities after they participated in a weight loss intervention. Methods This is a follow-up study among 84 obese housewives without co-morbidities aged 18 to 59 years old who previously participated as a control group (delayed intervention, G1) in the My Body is Fit and Fabulous at Home (MyBFF@home) Phase II. Baseline data were obtained from 12 month data collection for this group. A new group of 42 obese housewives with co-morbidities (G2) were also recruited. Both groups received a 6 month intervention (July–December 2015) consisting of dietary counselling, physical activity (PA) and self-monitoring tools (PA diary, food diary and pedometer). Study parameters included weight, height, waist circumference, blood pressure and body compositions. Body compositions were measured using a bioelectrical impedance analysis device, Inbody 720. Descriptive and repeated measures ANOVA analyses were performed using SPSS 21. Results There were reductions in mean body fat, fat mass and visceral fat area, particularly among obese women without co-morbidities. There were also decreases fat and skeletal muscle from baseline to month six with mean difference − 0.12 (95% CI: -0.38, 0.14) and visceral fat area from month three to month six with mean difference − 9.22 (− 17.87, − 0.56) for G1. G2 showed a decreasing pattern of skeletal muscle from baseline to month six with mean difference − 0.01(95% CI: -0.38, 0.37). There was a significant difference for group effect of visceral fat area (p < 0.05) with mean difference of − 11.49(95% CI: -20.07, 2.91). It showed that the intervention programs was effective to reduce visceral fat area compared to other part of body composition. Conclusion Obese participants without co-morbidities showed more desirable changes in body composition. Visceral fat area was reduced regardless of morbidity status. Weight management efforts are therefore not as straightforward in those with co-morbidities compared to those without, and require thorough and tailor-made strategies for a better chance of success.
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Affiliation(s)
- Nur Shahida Abdul Aziz
- Institute for Public Health, National Institute of Health, Ministry of Health Malaysia, 50590, Kuala Lumpur, Malaysia.
| | - Suzana Shahar
- Department of Nutrition and Dietetics, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rashidah Ambak
- Institute for Public Health, National Institute of Health, Ministry of Health Malaysia, 50590, Kuala Lumpur, Malaysia
| | - Noor Safiza Mohamad Nor
- Institute for Public Health, National Institute of Health, Ministry of Health Malaysia, 50590, Kuala Lumpur, Malaysia
| | - Ahmad Taufik Jamil
- Population Health and Preventive Medicine, Faculty of Medicine, University Technology MARA (UiTM), Sungai Buloh Campus, Sungai Buloh, Selangor Darul Ehsan, Malaysia
| | - Tahir Aris
- Institute for Public Health, National Institute of Health, Ministry of Health Malaysia, 50590, Kuala Lumpur, Malaysia
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A one-year resistance training program following weight loss has no significant impact on body composition and energy expenditure in postmenopausal women living with overweight and obesity. Physiol Behav 2018; 189:99-106. [DOI: 10.1016/j.physbeh.2018.03.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 02/16/2018] [Accepted: 03/12/2018] [Indexed: 12/12/2022]
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Hunter GR, Plaisance EP, Carter SJ, Fisher G. Why intensity is not a bad word: Optimizing health status at any age. Clin Nutr 2018; 37:56-60. [PMID: 28214041 PMCID: PMC5550361 DOI: 10.1016/j.clnu.2017.02.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 08/05/2016] [Accepted: 02/02/2017] [Indexed: 10/20/2022]
Abstract
Age-related declines in health and function make locomotion increasingly difficult leading to reductions in non-exercise activity thermogenesis (NEAT), skeletal muscle size and strength, and increased adiposity. Exercise is an important strategy to attenuate loss of function through the life cycle. Despite claims to the contrary, high-intensity exercise is important for the prevention of obesity and sarcopenia with advancing age. Therefore, the purpose of this mini-review is to present literature supporting the contention that low volume, high-intensity aerobic and/or resistance training can slow sarcopenia, sustain ease of movement, stimulate NEAT, and attenuate the accretion of fat mass.
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Affiliation(s)
- Gary R Hunter
- Department of Human Studies, University of Alabama at Birmingham, USA; Department of Nutrition Sciences, University of Alabama at Birmingham, USA.
| | - Eric P Plaisance
- Department of Human Studies, University of Alabama at Birmingham, USA; Department of Nutrition Sciences, University of Alabama at Birmingham, USA
| | - Stephen J Carter
- Department of Nutrition Sciences, University of Alabama at Birmingham, USA
| | - Gordon Fisher
- Department of Human Studies, University of Alabama at Birmingham, USA; Department of Nutrition Sciences, University of Alabama at Birmingham, USA
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Arent SM, Walker AJ, Pellegrino JK, Sanders DJ, McFadden BA, Ziegenfuss TN, Lopez HL. The Combined Effects of Exercise, Diet, and a Multi-Ingredient Dietary Supplement on Body Composition and Adipokine Changes in Overweight Adults. J Am Coll Nutr 2017; 37:111-120. [PMID: 29111889 DOI: 10.1080/07315724.2017.1368039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Very few weight and fat loss supplements undergo finished-product research to examine efficacy. The purpose of this study was to determine the effects of an 8-week diet and exercise program on body composition, hip and waist girth, and adipokines and evaluate whether a dietary supplement containing raspberry ketone, capsaicin, caffeine, garlic, and Citrus aurantium enhanced outcomes. METHODS Overweight men and women completed this randomized, placebo-controlled, double-blind study. Participants consumed 4 capsules/d of supplement (EXP; n = 18) or placebo (PLA; n = 18). Participants underwent 8 weeks of daily supplementation, calorie restriction (500 kcal < RMR [resting metabolic rate] × 1.2), and supervised progressive exercise training 3 times a week. Body composition, girth, and adipokines were assessed at baseline and postintervention (T1 and T2). RESULTS Significant decreases in weight (-2.6 ± 0.57 kg, p < 0.001), fat mass (-1.8 ± 0.20 kg; p < 0.001), and percentage body fat (-3.7% ± 0.29%, p < 0.001) and a significant increase in lean body mass (LBM; 1.5 ± 0.26 kg; p < 0.001) were seen from T1 to T2 in both groups. For men, only those in the EXP group increased LBM from T1 to T2 (1.3 ± 0.38 kg; p < 0.05). Hip girth was also reduced, with the women in the EXP group (-10.7 ± 2.15 cm, p < 0.001) having a greater reduction. There was a time by group interaction, with significant decreases in leptin (p < 0.001) and significant increases in adiponectin (p < 0.05) in the EXP group. CONCLUSIONS Significant improvements in adipokines and leptin support the utility of exercise, diet, and fat loss for impacting inflammatory biomarkers. The improvement in adiponectin with EXP may suggest a unique health mechanism.
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Affiliation(s)
- Shawn M Arent
- a Center for Health and Human Performance, Rutgers University , New Brunswick , New Jersey , USA
| | - Alan J Walker
- a Center for Health and Human Performance, Rutgers University , New Brunswick , New Jersey , USA
| | - Joseph K Pellegrino
- a Center for Health and Human Performance, Rutgers University , New Brunswick , New Jersey , USA
| | - David J Sanders
- a Center for Health and Human Performance, Rutgers University , New Brunswick , New Jersey , USA
| | - Bridget A McFadden
- a Center for Health and Human Performance, Rutgers University , New Brunswick , New Jersey , USA
| | | | - Hector L Lopez
- b The Center for Applied Health Sciences , Stow , Ohio , USA
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Rottensteiner M, Mäkelä S, Bogl LH, Törmäkangas T, Kaprio J, Kujala UM. Sport disciplines, types of sports, and waist circumference in young adulthood – a population-based twin study. Eur J Sport Sci 2017; 17:1184-1193. [DOI: 10.1080/17461391.2017.1356874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mirva Rottensteiner
- Health Sciences, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Sara Mäkelä
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Leonie H. Bogl
- Department of Public Health, University of Helsinki, Helsinki, Finland
- Institute for Molecular Medicine FIMM, University of Helsinki, Helsinki, Finland
| | - Timo Törmäkangas
- Health Sciences, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Jaakko Kaprio
- Department of Public Health, University of Helsinki, Helsinki, Finland
- Institute for Molecular Medicine FIMM, University of Helsinki, Helsinki, Finland
| | - Urho M. Kujala
- Health Sciences, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
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Ingram KH, Hunter GR, James JF, Gower BA. Central fat accretion and insulin sensitivity: differential relationships in parous and nulliparous women. Int J Obes (Lond) 2017; 41:1214-1217. [PMID: 28465610 PMCID: PMC5555115 DOI: 10.1038/ijo.2017.104] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 02/24/2017] [Accepted: 04/23/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND/OBJECTIVES Childbearing is associated with a disproportionate accumulation of visceral fat and an increased risk of metabolic disease. However, it is unknown whether the visceral fat accretion associated with pregnancy modifies a woman's risk for metabolic disease. The purpose of this study was to test whether the association between abdominal fat and insulin sensitivity differs by parity status in healthy overweight women. SUBJECTS/METHODS Intra-abdominal adipose tissue (IAAT) via CT, body composition by DXA, insulin sensitivity via intravenous glucose tolerance test and minimal model (SI), HOMA-IR, and cardiorespiratory fitness (VO2max) were assessed in 212 non-diabetic, premenopausal, overweight non-Hispanic white and African-American women. RESULTS Nulliparous women (n=98) were younger, had less IAAT and higher VO2max, but similar SI, HOMA-IR and leg fat, compared to parous (n=114). In nulliparous women, IAAT was negatively associated with SI, controlling for age, race and body fat mass (r=-0.40, P<0.001), but this relationship was attenuated in parous women (r=-0.15, P=0.16). In multiple linear regression analysis, leg fat and IAAT were significant predictors of SI in nulliparous, but not parous women. CONCLUSIONS Results suggest that greater IAAT in parous women does not lead to greater insulin resistance; rather, transient insulin resistance during pregnancy may encourage intra-abdominal fat accumulation that is metabolically benign. This underscores the need to consider parity when assessing cardiometabolic risk.
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Affiliation(s)
- Katherine H. Ingram
- Department of Exercise Science and Sport Management, Kennesaw State University, Kennesaw, GA, USA
| | - Gary R. Hunter
- Department of Human Studies, University of Alabama at Birmingham, Birmingham, AL, USA
| | - JaBreia F. James
- Department of Exercise Science and Sport Management, Kennesaw State University, Kennesaw, GA, USA
| | - Barbara A. Gower
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL, USA
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Kim BY, Choi DH, Jung CH, Kang SK, Mok JO, Kim CH. Obesity and Physical Activity. J Obes Metab Syndr 2017; 26:15-22. [PMID: 31089489 PMCID: PMC6484923 DOI: 10.7570/jomes.2017.26.1.15] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/04/2017] [Accepted: 03/17/2017] [Indexed: 02/06/2023] Open
Abstract
Some clinical manifestations of obesity include nonalcoholic fatty liver disease, type 2 diabetes, and cardiovascular disease. Calorie restriction may aid in weight loss in the short term. Exercise and physical activity are other means of weight loss. However, the efficacy of exercise and physical activity in weight reduction in obese populations is still unknown. In this review, we discuss the effects of exercise and physical activity in obese and overweight populations. We also discuss the effects of aerobic exercise and/or resistance training in weight loss and maintenance.
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Affiliation(s)
- Bo-Yeon Kim
- Division of Endocrinology & Metabolism, Department of Internal Medicine, College of Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Dug-Hyun Choi
- Division of Endocrinology & Metabolism, Department of Internal Medicine, College of Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Chan-Hee Jung
- Division of Endocrinology & Metabolism, Department of Internal Medicine, College of Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Sung-Koo Kang
- Division of Endocrinology & Metabolism, Department of Internal Medicine, College of Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Ji-Oh Mok
- Division of Endocrinology & Metabolism, Department of Internal Medicine, College of Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Chul-Hee Kim
- Division of Endocrinology & Metabolism, Department of Internal Medicine, College of Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
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Zhang HJ, Pan LL, Ma ZM, Chen Z, Huang ZF, Sun Q, Lu Y, Han CK, Lin MZ, Li XJ, Yang SY, Li XY. Long-term effect of exercise on improving fatty liver and cardiovascular risk factors in obese adults: A 1-year follow-up study. Diabetes Obes Metab 2017; 19:284-289. [PMID: 27761987 DOI: 10.1111/dom.12809] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/12/2016] [Accepted: 10/17/2016] [Indexed: 01/22/2023]
Abstract
Exercise training can reduce hepatic fat accumulation and cardiovascular risk among patients with non-alcoholic fatty liver disease (NAFLD), but how long these benefits extend beyond the period of active intervention is unclear. Intrahepatic triglyceride (IHTG) content, measured by proton magnetic resonance spectroscopy, and metabolic risk factors among 220 obese people with NAFLD, who were randomly assigned to vigorous/moderate exercise, moderate exercise or no exercise (control), were assessed at 1 year after the 12-month exercise intervention. IHTG content was significantly reduced in the 2 exercise groups compared with the control group over the 12-month active intervention. It was significantly lower (by -2.39%) in the vigorous/moderate exercise group compared with the control group at the 1-year follow-up (95% confidence interval -4.72 to -0.05%; P = .045). Waist circumference and blood pressure remained significantly lower in the vigorous/moderate exercise group and the moderate exercise group compared with the control group at the 1-year follow-up. Visceral adipose fat remained significantly reduced, but with no differences among 3 groups. These findings suggest 12-month exercise intervention induced reductions in hepatic fat accumulation, abdominal obesity and blood pressure for up to 1 year after the active intervention, with some attenuation of the benefits.
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Affiliation(s)
- Hui-Jie Zhang
- Department of Endocrinology and Diabetes, First Affiliated Hospital of Xiamen University, Xiamen, China
- Department of Epidemiology, Tulane University Health Sciences Center, New Orleans, Louisiana
| | - Ling-Ling Pan
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrinology and Metabolism, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhi-Min Ma
- Department of Endocrinology, Suzhou Science and Technology Town Hospital, Suzhou, Jiangsu, China
| | - Zheng Chen
- Department of Endocrinology and Diabetes, First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Zhu-Feng Huang
- Department of Endocrinology and Diabetes, First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Qian Sun
- Department of Endocrinology and Diabetes, First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Yan Lu
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan Univeristy, Shanghai, China
| | - Cheng-Kun Han
- Department of Endocrinology and Diabetes, First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Ming-Zhu Lin
- Department of Endocrinology and Diabetes, First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Xue-Jun Li
- Department of Endocrinology and Diabetes, First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Shu-Yu Yang
- Department of Endocrinology and Diabetes, First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Xiao-Ying Li
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan Univeristy, Shanghai, China
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Affiliation(s)
- Yunjun Yang
- Inje University Ilsan Paik Hospital, Goyang, Korea
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Chin SH, Kahathuduwa CN, Binks M. Physical activity and obesity: what we know and what we need to know. Obes Rev 2016; 17:1226-1244. [PMID: 27743411 DOI: 10.1111/obr.12460] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 07/14/2016] [Indexed: 11/29/2022]
Abstract
Creating a negative energy balance by decreasing caloric consumption and increasing physical activity is a common strategy used to treat obesity. A large number of review and original research papers have considered the role of physical activity in weight loss and maintenance. However, their conclusions are at times conflicting. In this review, we have critically evaluated the findings of systematic reviews and meta-analyses and supplemented their conclusions with recently published, high-quality clinical trials. We have eliminated studies that were methodologically flawed in an attempt to reduce the ambiguity in the literature. We further sought, through selective review of these publications, to isolate the effects of various types of exercise, independent of dietary interventions, to further clarify their independent contributions. Thus, our review describes (i) combined calorie restriction with physical activity interventions, (ii) physical activity interventions without calorie restriction and (iii) the role of physical activity on maintenance of weight loss. Through this critical examination of the literature, we have provided conclusions to address certain ambiguities regarding the role of physical activity in obesity treatment that will inform clinical practice. We have also identified several long-standing gaps in knowledge that will inform future research.
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Affiliation(s)
- S-H Chin
- Behavioral Medicine and Translational Research Lab, Department of Nutritional Sciences, Texas Tech University, Lubbock, Texas, USA
| | - C N Kahathuduwa
- Behavioral Medicine and Translational Research Lab, Department of Nutritional Sciences, Texas Tech University, Lubbock, Texas, USA.,Department of Physiology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
| | - M Binks
- Behavioral Medicine and Translational Research Lab, Department of Nutritional Sciences, Texas Tech University, Lubbock, Texas, USA
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Benito PJ, Alvarez-Sánchez M, Díaz V, Morencos E, Peinado AB, Cupeiro R, Maffulli N. Cardiovascular Fitness and Energy Expenditure Response during a Combined Aerobic and Circuit Weight Training Protocol. PLoS One 2016; 11:e0164349. [PMID: 27832062 PMCID: PMC5104360 DOI: 10.1371/journal.pone.0164349] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 09/23/2016] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES The present study describes the oxygen uptake and total energy expenditure (including both aerobic and anaerobic contribution) response during three different circuit weight training (CWT) protocols of equivalent duration composed of free weight exercises, machine exercises, and a combination of free weight exercises intercalating aerobic exercise. DESIGN Controlled, randomized crossover designs. METHODS Subjects completed in a randomized order three circuit weight training protocols of the same duration (3 sets of 8 exercises, 45min 15s) and intensity (70% of 15 repetitions maximum). The circuit protocols were composed of free weight exercises, machine exercises, or a combination of free weight exercises with aerobic exercise. Oxygen consumption and lactate concentration were measured throughout the circuit to estimate aerobic and anaerobic energy expenditure respectively. RESULTS Energy expenditure is higher in the combined exercise protocol (29.9±3.6 ml/kg/min), compared with Freeweight (24.2±2.8ml/kg/min) and Machine (20.4±2.9ml/kg/min). The combined exercise protocol produced the highest total energy expenditure but the lowest lactate concentration and perceived exertion. The anaerobic contribution to total energy expenditure was higher in the machine and free weight protocols compared with the combined exercise protocol (6.2%, 4.6% and 2.3% respectively). CONCLUSIONS In the proposed protocols, the combined exercise protocol results in the highest oxygen consumption. Total energy expenditure is related to the type of exercise included in the circuit. Anaerobic contributions to total energy expenditure during circuit weight training may be modest, but lack of their estimation may underestimate total energy expenditure. TRIAL REGISTRATION ClinicalTrials.gov NCT01116856.
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Affiliation(s)
- Pedro J. Benito
- Department of Health and Human Performance, Faculty of Physical Activity and Sport Sciences, Technical University of Madrid, Madrid, Spain
| | - María Alvarez-Sánchez
- Institute of Veterinary Physiology, University of Zurich, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology (ZIHP), Zurich, Switzerland
| | - Víctor Díaz
- Department of Health and Human Performance, Faculty of Physical Activity and Sport Sciences, Technical University of Madrid, Madrid, Spain
- Institute of Veterinary Physiology, University of Zurich, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology (ZIHP), Zurich, Switzerland
| | - Esther Morencos
- Department of Health and Human Performance, Faculty of Physical Activity and Sport Sciences, Technical University of Madrid, Madrid, Spain
- Francisco de Vitoria University, Exercise and Sport Sciences, Madrid, Spain
| | - Ana B. Peinado
- Department of Health and Human Performance, Faculty of Physical Activity and Sport Sciences, Technical University of Madrid, Madrid, Spain
| | - Rocio Cupeiro
- Department of Health and Human Performance, Faculty of Physical Activity and Sport Sciences, Technical University of Madrid, Madrid, Spain
| | - Nicola Maffulli
- University of Salerno School of Medicine and Surgery, Department of Musculoskeletal Disorders, Salerno, Italy
- Centre for Sport and Exercise Medicine, Queen Mary University of London, Mile End Hospital, 275 Bancroft Road, London E1 4DG, England, United Kingdom
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Cooper JHF, Collins BEG, Adams DR, Robergs RA, Donges CE. Limited Effects of Endurance or Interval Training on Visceral Adipose Tissue and Systemic Inflammation in Sedentary Middle-Aged Men. J Obes 2016; 2016:2479597. [PMID: 27777795 PMCID: PMC5061978 DOI: 10.1155/2016/2479597] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 09/14/2016] [Indexed: 12/21/2022] Open
Abstract
Purpose. Limited data exists for the effects of sprint-interval training (SIT) and endurance training (ET) on total body composition, abdominal visceral adipose tissue, and plasma inflammation. Moreover, whether "active" or "passive" recovery in SIT provides a differential effect on these measures remains uncertain. Methods. Sedentary middle-aged men (n = 62; 49.5 ± 5.8 y; 29.7 ± 3.7 kg·m2) underwent abdominal computed tomography, dual-energy X-ray absorptiometry, venepuncture, and exercise testing before and after the interventions, which included the following: 12 wks 3 d·wk-1 ET (n = 15; 50-60 min cycling; 80% HRmax), SIT (4-10 × 30 s sprint efforts) with passive (P-SIT; n = 15) or active recovery (A-SIT; n = 15); or nonexercise control condition (CON; n = 14). Changes in cardiorespiratory fitness, whole-body and visceral fat mass, and plasma systemic inflammation were examined. Results. Compared to CON, significant increases in interpolated power output (P-SIT, P < 0.001; ET, P = 0.012; A-SIT, P = 0.041) and test duration (P-SIT, P = 0.001; ET, P = 0.012; A-SIT, P = 0.046) occurred after training. Final VO2 consumption was increased after P-SIT only (P < 0.001). Despite >90% exercise compliance, there was no change in whole-body or visceral fat mass or plasma inflammation (P > 0.05). Conclusion. In sedentary middle-aged men, SIT was a time-effective alternative to ET in facilitating conditioning responses yet was ineffective in altering body composition and plasma inflammation, and compared to passive recovery, evidenced diminished conditioning responses when employing active recovery.
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Affiliation(s)
- Joshua H. F. Cooper
- School of Exercise Science, Sport and Health, Charles Sturt University, Bathurst, NSW, Australia
| | - Blake E. G. Collins
- School of Exercise Science, Sport and Health, Charles Sturt University, Bathurst, NSW, Australia
| | - David R. Adams
- School of Exercise Science, Sport and Health, Charles Sturt University, Bathurst, NSW, Australia
| | | | - Cheyne E. Donges
- School of Exercise Science, Sport and Health, Charles Sturt University, Bathurst, NSW, Australia
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Pedersen BK, Saltin B. Exercise as medicine - evidence for prescribing exercise as therapy in 26 different chronic diseases. Scand J Med Sci Sports 2016; 25 Suppl 3:1-72. [PMID: 26606383 DOI: 10.1111/sms.12581] [Citation(s) in RCA: 1637] [Impact Index Per Article: 204.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2015] [Indexed: 12/12/2022]
Abstract
This review provides the reader with the up-to-date evidence-based basis for prescribing exercise as medicine in the treatment of 26 different diseases: psychiatric diseases (depression, anxiety, stress, schizophrenia); neurological diseases (dementia, Parkinson's disease, multiple sclerosis); metabolic diseases (obesity, hyperlipidemia, metabolic syndrome, polycystic ovarian syndrome, type 2 diabetes, type 1 diabetes); cardiovascular diseases (hypertension, coronary heart disease, heart failure, cerebral apoplexy, and claudication intermittent); pulmonary diseases (chronic obstructive pulmonary disease, asthma, cystic fibrosis); musculo-skeletal disorders (osteoarthritis, osteoporosis, back pain, rheumatoid arthritis); and cancer. The effect of exercise therapy on disease pathogenesis and symptoms are given and the possible mechanisms of action are discussed. We have interpreted the scientific literature and for each disease, we provide the reader with our best advice regarding the optimal type and dose for prescription of exercise.
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Affiliation(s)
- B K Pedersen
- The Centre of Inflammation and Metabolism and The Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - B Saltin
- The Copenhagen Muscle Research Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Alterations in Hemoglobin and Serum 25-hydroxyvitamin D are Related Before and After Weight Loss Independent of African Admixture. Int J Sport Nutr Exerc Metab 2016; 27:59-66. [PMID: 27203820 DOI: 10.1123/ijsnem.2016-0002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
African American (AA) and European American (EA) women often exhibit differences in hemoglobin (Hb) and 25-hydroxyvitamin D [25(OH)D], both of which can be altered by calorie restriction leading to weight loss. Given these known differences, it is of clinical interest to examine the potential for race-specific, adverse responses to weight loss. Sixty-four overweight (BMI 27-29.9 kg/m2), premenopausal women consumed a standardized, very-low calorie diet to reduce BMI < 25 kg/m2. Ancestry informative markers provided estimates of African admixture, an objective mean of expressing race. Blood sampling and anthropometric measures were performed at baseline and upon meeting target BMI. At baseline, in the overweight state, Hb (g/dL) (AA, 11.7 ± 0.9 vs. EA, 12.5 ± 0.8; p < .01) and 25(OH)D (nmol/L) (AA, 35.7 ± 12.9 vs. EA, 57.0 ± 20.0; p < .01) were lower in AAs. After weight loss, Hb decreased (AA, -0.5 ± 0.7 vs. EA, -0.4 ± 0.6; p = .48) to a similar extent among races. Conversely, 25(OH)D increased (AA, 43.4 ± 14.0 vs. EA 68.2 ± 24.3; p < .01) though the magnitude of change (Δ) was not different (AA, +7.8 ± 13.5 vs. EA, +11.2 ± 16.7; p = .37) between races. Multiple linear regression revealed a positive association between ΔHb and Δ25(OH)D (r = .386; p < .01) adjusted for African admixture, Δtestosterone, and Δbody fat%. Path analyses revealed a significant indirect effect of Δbody fat% on ΔHb through Δ25(OH)D, β =-0.023, CI [-0.06, -0.004]. Following 15% weight loss, participants with the largest increase in serum 25(OH)D exhibited the smallest decrease in Hb. Future research should clarify the optimal degree of calorie restriction to stimulate weight loss while mitigating the potential risk of anemia associated with dieting efforts.
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Hunter GR, Fisher G, Neumeier WH, Carter SJ, Plaisance EP. Exercise Training and Energy Expenditure following Weight Loss. Med Sci Sports Exerc 2016; 47:1950-7. [PMID: 25606816 DOI: 10.1249/mss.0000000000000622] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE This study aims to determine the effects of aerobic or resistance training on activity-related energy expenditure (AEE; kcal·d(-1)) and physical activity index (activity-related time equivalent (ARTE)) following weight loss. It was hypothesized that weight loss without exercise training would be accompanied by decreases in AEE, ARTE, and nontraining physical activity energy expenditure (nonexercise activity thermogenesis (NEAT)) and that exercise training would prevent decreases in free-living energy expenditure. METHODS One hundred forty premenopausal women had an average weight loss of 25 lb during a diet (800 kcal·d(-1)) of furnished food. One group aerobically trained 3 times per week (40 min·d(-1)), another group resistance-trained 3 times per week (10 exercises/2 sets × 10 repetitions), and the third group did not exercise. Dual-energy x-ray absorptiometry was used to measure body composition, indirect calorimetry was used to measure resting energy expenditure (REE) and walking energy expenditure, and doubly labeled water was used to measure total energy expenditure (TEE). AEE, ARTE, and nontraining physical activity energy expenditure (NEAT) were calculated. RESULTS TEE, REE, and NEAT all decreased following weight loss for the no-exercise group, but not for aerobic and resistance trainers. Only REE decreased in the two exercise groups. Resistance trainers increased ARTE. HR and oxygen uptake while walking on the flat and up a grade were consistently related to TEE, AEE, NEAT, and ARTE. CONCLUSIONS Exercise training prevents a decrease in energy expenditure, including free-living energy expenditure separate from exercise training, following weight loss. Resistance training increases physical activity, whereas economy/ease of walking is associated with increased TEE, AEE, NEAT, and ARTE.
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Affiliation(s)
- Gary R Hunter
- 1Department of Human Studies, University of Alabama at Birmingham, Birmingham, AL; and 2Department of Psychology, University of Alabama at Birmingham, Birmingham, AL
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Sweatt SK, Willig AL, Agne AA, Powell JL, Cherrington AL. Physical Activity Patterns of Latina Immigrants Living in Alabama. J Racial Ethn Health Disparities 2015; 2:365-72. [PMID: 26413457 PMCID: PMC4581436 DOI: 10.1007/s40615-015-0083-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Latinos are the fastest growing minority group in the Southeastern USA. Latinos living in the USA have a higher prevalence of obesity, metabolic diseases, and physical inactivity compared to non-Latino Whites, particularly Latina women. The objective of this study is to assess the patterns of physical activity (PA) in overweight Latina immigrants in Alabama using a self-report and an accelerometer. METHODS Participants included foreign-born Latina women age ≥19 years with BMI ≥25 kg/m(2). The Global Physical Activity Questionnaire was used to assess self-reported physical activity. Accelerometers were used as an objective measure of physical activity. RESULTS Among 44 overweight/obese Latina immigrants (mean age 36.6 years and BMI 33.3 kg/m(2)), 36.4 % met PA recommendations by self-report while only 20.5 % met recommendations according to the accelerometer. Self-report sedentary activity was underestimated (186 min/day self-report vs. 575 min/day accelerometer) while moderate activity was overestimated (34 min/day self-report vs. 15 min/day accelerometer). While the number of years living in the USA was positively associated with vigorous activity (r=0.32, p= 0.03), the number of years living in Alabama tended to be positively associated with sedentary activity and negatively associated with moderate activity. CONCLUSIONS Latina immigrants living in Alabama overestimated the amount of time spent in moderate PA and underestimated time spent in sedentary activity.
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Wirth A, Wabitsch M, Hauner H. The prevention and treatment of obesity. DEUTSCHES ARZTEBLATT INTERNATIONAL 2015; 111:705-13. [PMID: 25385482 DOI: 10.3238/arztebl.2014.0705] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 07/23/2014] [Accepted: 07/23/2014] [Indexed: 12/30/2022]
Abstract
BACKGROUND The high prevalence of obesity (24% of the adult population) and its adverse effects on health call for effective prevention and treatment. METHOD Pertinent articles were retrieved by a systematic literature search for the period 2005 to 2012. A total of 4495 abstracts were examined. 119 publications were analyzed, and recommendations were issued in a structured consensus procedure by an interdisciplinary committee with the participation of ten medical specialty societies. RESULTS Obesity (body-mass index [BMI] ge;30 kg/m2) is considered to be a chronic disease. Its prevention is especially important. For obese persons, it is recommended that a diet with an energy deficit of 500 kcal/day and a low energy density should be instituted for the purpose of weight loss and stabilization of a lower weight. The relative proportion of macronutrients is of secondary importance for weight loss. If the BMI exceeds 30 kg/m2, formula products can be used for a limited time. More physical exercise in everyday life and during leisure time promotes weight loss and improves risk factors and obesity-associated diseases. Behavior modification and behavioral therapy support changes in nutrition and exercise in everyday life. With respect to changes in lifestyle, there is no scientific evidence to support any particular order of the measures to be taken. Weight-loss programs whose efficacy has been scientifically evaluated are recommended. Surgical intervention is more effective than conservative treatment with respect to reduction of bodily fat, improvement of obesity-associated diseases, and lowering mortality. Controlled studies indicate that, within 1 to 2 years, a weight loss of ca. 4 to 6 kg can be achieved by dietary therapy, 2 to 3 kg by exercise therapy, and 20 to 40 kg by bariatric surgery. CONCLUSION There is good scientific evidence for effective measures for the prevention and treatment of obesity.
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Affiliation(s)
- Alfred Wirth
- Bad Rothenfelde, Department of Pediatrics and Adolescent Medicine, Section of Pediatric Endocrinology and Diabetes, University Medical Center Ulm, Ulm, Else Kroener-Fresenius-Center for Nutritional Medicine, Klinikum rechts der Isar, Technische Universität München, Munich
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Sertié RAL, Andreotti S, Proença ARG, Campaña AB, Lima FB. Fat gain with physical detraining is correlated with increased glucose transport and oxidation in periepididymal white adipose tissue in rats. ACTA ACUST UNITED AC 2015; 48:650-3. [PMID: 26017340 PMCID: PMC4512105 DOI: 10.1590/1414-431x20154356] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 03/13/2015] [Indexed: 11/25/2022]
Abstract
As it is a common observation that obesity tends to occur after discontinuation of
exercise, we investigated how white adipocytes isolated from the periepididymal fat
of animals with interrupted physical training transport and oxidize glucose, and
whether these adaptations support the weight regain seen after 4 weeks of physical
detraining. Male Wistar rats (45 days old, weighing 200 g) were divided into two
groups (n=10): group D (detrained), trained for 8 weeks and detrained for 4 weeks;
and group S (sedentary). The physical exercise was carried out on a treadmill for 60
min/day, 5 days/week for 8 weeks, at 50-60% of the maximum running capacity. After
the training protocol, adipocytes isolated from the periepididymal adipose tissue
were submitted to glucose uptake and oxidation tests. Adipocytes from detrained
animals increased their glucose uptake capacity by 18.5% compared with those from
sedentary animals (P<0.05). The same cells also showed a greater glucose oxidation
capacity in response to insulin stimulation (34.55%) compared with those from the S
group (P<0.05). We hypothesize that, owing to the more intense glucose entrance
into adipose cells from detrained rats, more substrate became available for
triacylglycerol synthesis. Furthermore, this increased glucose oxidation rate allowed
an increase in energy supply for triacylglycerol synthesis. Thus, physical detraining
might play a role as a possible obesogenic factor for increasing glucose uptake and
oxidation by adipocytes.
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Affiliation(s)
- R A L Sertié
- Instituto de Ciências Biomédicas, Departamento de Fisiologia e Biofísica, Universidade de São Paulo, São Paulo, SP, Brasil
| | - S Andreotti
- Instituto de Ciências Biomédicas, Departamento de Fisiologia e Biofísica, Universidade de São Paulo, São Paulo, SP, Brasil
| | - A R G Proença
- Faculdade de Ciências Aplicadas, Laboratório de Biotecnologia, Universidade Estadual de Campinas, Limeira, SP, Brasil
| | - A B Campaña
- Instituto de Ciências Biomédicas, Departamento de Fisiologia e Biofísica, Universidade de São Paulo, São Paulo, SP, Brasil
| | - F B Lima
- Instituto de Ciências Biomédicas, Departamento de Fisiologia e Biofísica, Universidade de São Paulo, São Paulo, SP, Brasil
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Brooks D, Churchill J, Fein K, Linder D, Michel KE, Tudor K, Ward E, Witzel A. 2014 AAHA weight management guidelines for dogs and cats. J Am Anim Hosp Assoc 2015; 50:1-11. [PMID: 24216501 DOI: 10.5326/jaaha-ms-6331] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Communicating and implementing a weight management program for dogs and cats can be a challenging endeavor for veterinarians, but a rewarding one. An effective individualized weight loss program provides a consistent and healthy rate of weight loss to reduce risk of disease, prevent malnutrition, and improve quality of life. Weight loss is achieved with appropriate caloric restriction, diet selection, exercise, and strategies to help modify behavior of both the pet and client. This document offers guidelines and tools for the management of weight loss and long-term maintenance of healthy weight.
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Herman KM, Carver TE, Christou NV, Andersen RE. Keeping the weight off: physical activity, sitting time, and weight loss maintenance in bariatric surgery patients 2 to 16 years postsurgery. Obes Surg 2015; 24:1064-72. [PMID: 24682779 DOI: 10.1007/s11695-014-1212-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Bariatric surgery patients often exhibit low levels of physical activity (PA), despite the presumed importance of PA as an adjunct to surgery for successful weight loss. Little is known regarding the associations of PA and sedentary behaviors to weight loss outcomes in the long term following surgery. The objective of the study was to assess the associations of PA and sitting time with weight status, weight loss, and weight maintenance outcomes in bariatric patients 2-16 years postsurgery. METHODS A total of 303 Roux-en-Y Gastric Bypass patients (73% female; mean age 47 ± 10 years, mean 7 ± 4 years since surgery) completed a telephone questionnaire. Patients reported moderate-to-vigorous PA (MVPA: # sessions/week ≥30 min) and average daily sitting time (h/day). Associations with various weight outcomes were assessed. RESULTS Only 48% of patients reported ≥1 session/week MVPA, and mean reported sitting time was 7 ± 4 h/day. Neither MVPA nor sitting time was associated with weight loss outcomes at patients' lowest weight postsurgery. However, both MVPA and sitting time were independently positively and inversely, respectively, associated with total (kg) weight loss, % weight loss, and % excess weight loss at current weight, as well as weight loss maintained vs. regained, controlling for age, sex, surgery type, presurgery BMI, total initial weight loss, and time since surgery. CONCLUSIONS Results demonstrate associations between MVPA and high sitting time and weight loss outcomes among bariatric patients in the long term. The implications for long-term weight management and concomitant health outcomes highlight the need for appropriate follow-up and interventions in this unique high-risk patient population.
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Affiliation(s)
- Katya M Herman
- Department of Kinesiology and Physical Education, McGill University, 475 Pine Ave W, Montreal, QC, H2W 1S4, Canada,
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Ceaser T, Hunter G. Black and White Race Differences in Aerobic Capacity, Muscle Fiber Type, and Their Influence on Metabolic Processes. Sports Med 2015; 45:615-23. [DOI: 10.1007/s40279-015-0318-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Schoenfeld BJ, Aragon AA, Wilborn CD, Krieger JW, Sonmez GT. Body composition changes associated with fasted versus non-fasted aerobic exercise. J Int Soc Sports Nutr 2014; 11:54. [PMID: 25429252 PMCID: PMC4242477 DOI: 10.1186/s12970-014-0054-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 10/23/2014] [Indexed: 01/04/2023] Open
Abstract
It has been hypothesized that performing aerobic exercise after an overnight fast accelerates the loss of body fat. The purpose of this study was to investigate changes in fat mass and fat-free mass following four weeks of volume-equated fasted versus fed aerobic exercise in young women adhering to a hypocaloric diet. Twenty healthy young female volunteers were randomly assigned to 1 of 2 experimental groups: a fasted training (FASTED) group that performed exercise after an overnight fast (n = 10) or a post-prandial training (FED) group that consumed a meal prior to exercise (n = 10). Training consisted of 1 hour of steady-state aerobic exercise performed 3 days per week. Subjects were provided with customized dietary plans designed to induce a caloric deficit. Nutritional counseling was provided throughout the study period to help ensure dietary adherence and self-reported food intake was monitored on a regular basis. A meal replacement shake was provided either immediately prior to exercise for the FED group or immediately following exercise for the FASTED group, with this nutritional provision carried out under the supervision of a research assistant. Both groups showed a significant loss of weight (P = 0.0005) and fat mass (P = 0.02) from baseline, but no significant between-group differences were noted in any outcome measure. These findings indicate that body composition changes associated with aerobic exercise in conjunction with a hypocaloric diet are similar regardless whether or not an individual is fasted prior to training.
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Affiliation(s)
| | | | - Colin D Wilborn
- Exercise and Sport Science Department, University of Mary Hardin-Baylor, Belton, TX USA
| | | | - Gul T Sonmez
- Department of Health Science, Lehman College, Bronx, NY USA
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Fisher G, Hunter GR, Allison DB. Commentary: physical activity does influence obesity risk when it actually occurs in sufficient amount. Int J Epidemiol 2014; 42:1845-8. [PMID: 24415621 DOI: 10.1093/ije/dyt163] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Gordon Fisher
- Department of Human Studies, University of Alabama at Birmingham, Birmingham, AL, USA and Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
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Does the method of weight loss effect long-term changes in weight, body composition or chronic disease risk factors in overweight or obese adults? A systematic review. PLoS One 2014; 9:e109849. [PMID: 25333384 PMCID: PMC4198137 DOI: 10.1371/journal.pone.0109849] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 09/03/2014] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Differences in biological changes from weight loss by energy restriction and/or exercise may be associated with differences in long-term weight loss/regain. OBJECTIVE To assess the effect of weight loss method on long-term changes in weight, body composition and chronic disease risk factors. DATA SOURCES PubMed and Embase were searched (January 1990-October 2013) for studies with data on the effect of energy restriction, exercise (aerobic and resistance) on long-term weight loss. Twenty articles were included in this review. STUDY ELIGIBILITY CRITERIA Primary source, peer reviewed randomized trials published in English with an active weight loss period of >6 months, or active weight loss with a follow-up period of any duration, conducted in overweight or obese adults were included. STUDY APPRAISAL AND SYNTHESIS METHODS Considerable heterogeneity across trials existed for important study parameters, therefore a meta-analysis was considered inappropriate. Results were synthesized and grouped by comparisons (e.g. diet vs. aerobic exercise, diet vs. diet + aerobic exercise etc.) and study design (long-term or weight loss/follow-up). RESULTS Forty percent of trials reported significantly greater long-term weight loss with diet compared with aerobic exercise, while results for differences in weight regain were inconclusive. Diet+aerobic exercise resulted in significantly greater weight loss than diet alone in 50% of trials. However, weight regain (∼ 55% of loss) was similar in diet and diet+aerobic exercise groups. Fat-free mass tended to be preserved when interventions included exercise.
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Long-term weight status in regainers after weight loss by lifestyle intervention: status and challenges. Proc Nutr Soc 2014; 73:509-18. [PMID: 25192545 DOI: 10.1017/s0029665114000718] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
After having participated in a weight loss trial, most participants do not stabilise the obtained weight loss but return to their initial weight. The aim of this review is to describe the main determinants of continued low weight status after weight loss, and the effectiveness of physical activity (PA), energy restriction and macronutrient composition of the diet for low long-term weight regain. Studies with intervention periods of at least 3 months duration of weight reduction measures and a follow-up at least 2 years after the intervention period were considered as eligible for the review. Owing to limited data, the studies describing the role of PA in weight management were eligible with a follow-up of 1 year only. It appears that a diet with self-regulation of dietary intake seems to be given a prominent role in the strategy of successful long-term weight loss among the obese. This measure could be combined with behaviour therapy and PA and tailored to the individual situation. However, considering available evidence it is difficult to conclude regarding unambiguous measures and to recommend a specific dietary intervention. Nevertheless, interventions should be effective in promoting intrinsic motivation and self-efficacy. The harmonisation and standardisation of data collection in the follow-up period of long-term weight loss studies is a major challenge.
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