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Cristi-Montero C, Martínez-Flores R, Espinoza-Puelles JP, Favero-Ramirez L, Zurita-Corvalan N, Cañete IC, Leppe J, Ferrari G, Sadarangani KP, Cancino-López J, Hernandez-Jaña S, Farias TY, Lemes VB, Rodríguez-Rodríguez F, Brand C. Study protocol and rationale of "the UP project": evaluating the effectiveness of active breaks on health indicators in desk-based workers. Front Public Health 2024; 12:1363015. [PMID: 38566792 PMCID: PMC10985339 DOI: 10.3389/fpubh.2024.1363015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 03/07/2024] [Indexed: 04/04/2024] Open
Abstract
Background Excessive sedentary time has been negatively associated with several health outcomes, and physical activity alone does not seem to fully counteract these consequences. This panorama emphasizes the essential of sedentary time interruption programs. "The Up Project" seeks to assess the effectiveness of two interventions, one incorporating active breaks led by a professional and the other utilizing a computer application (self-led), of both equivalent duration and intensity. These interventions will be compared with a control group to evaluate their impact on physical activity levels, sedentary time, stress perception, occupational pain, and cardiometabolic risk factors among office workers. Methods This quasi-experimental study includes 60 desk-based workers from universities and educational institutes in Valparaiso, Chile, assigned to three groups: (a) booster breaks led by professionals, (b) computer prompts that are unled, and (c) a control group. The intervention protocol for both experimental groups will last 12 weeks (only weekdays). The following measurements will be performed at baseline and post-intervention: cardiometabolic risk based on body composition (fat mass, fat-free mass, and bone mass evaluated by DXA), waist circumference, blood pressure, resting heart rate, and handgrip strength. Physical activity and sedentary time will be self-reported and device-based assessed using accelerometry. Questionnaires will be used to determine the perception of stress and occupational pain. Discussion Governments worldwide are addressing health issues associated with sedentary behavior, particularly concerning individuals highly exposed to it, such as desk-based workers. Despite implementing certain strategies, there remains a noticeable gap in comprehensive research comparing diverse protocols. For instance, studies that contrast the outcomes of interventions led by professionals with those prompted by computers are scarce. This ongoing project is expected to contribute to evidence-based interventions targeting reduced perceived stress levels and enhancing desk-based employees' mental and physical well-being. The implications of these findings could have the capacity to lay the groundwork for future public health initiatives and government-funded programs.
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Affiliation(s)
- Carlos Cristi-Montero
- IRyS Group, Physical Education School, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Ricardo Martínez-Flores
- IRyS Group, Physical Education School, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | | | - Laura Favero-Ramirez
- IRyS Group, Physical Education School, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Natalia Zurita-Corvalan
- IRyS Group, Physical Education School, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Ignacio Castillo Cañete
- IRyS Group, Physical Education School, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Jaime Leppe
- School of Physical Therapy Faculty of Medicine, Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Gerson Ferrari
- Universidad de Santiago de Chile (USACH), Escuela de Ciencias de la Actividad Física, el Deporte y la Salud, Santiago, Chile
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Providencia, Santiago, Chile
| | - Kabir P. Sadarangani
- Universidad Autónoma de Chile, Santiago, Chile
- Escuela de Kinesiología, Facultad de Salud Y Odontología, Universidad Diego Portales, Santiago, Chile
| | - Jorge Cancino-López
- Laboratorio de Fisiología del Ejercicio y Metabolismo, Escuela de Kinesiología, Facultad de Medicina, Universidad Finis Terrae. Santiago, Santiago, Chile
| | - Sam Hernandez-Jaña
- IRyS Group, Physical Education School, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | | | - Vanilson Batista Lemes
- Universidade Federal do Rio Grande do Sul, Escola de Educação Física, Fisioterapia e Dança, Porto Alegre, Brazil
| | | | - Caroline Brand
- IRyS Group, Physical Education School, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
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Gao T, Zheng Y, Joyce BT, Kho M, Terry JG, Wang J, Nannini D, Carr JJ, Nair S, Zhang K, Zhao W, Jacobs DR, Schreiner PJ, Greenland P, Lloyd-Jones D, Smith JA, Hou L. Epigenetic Aging Is Associated With Measures of Midlife Muscle Volume and Attenuation in CARDIA Study. J Gerontol A Biol Sci Med Sci 2024; 79:glad261. [PMID: 37956337 PMCID: PMC10876078 DOI: 10.1093/gerona/glad261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND GrimAge acceleration (GAA), an epigenetic marker that represents physiologic aging, is associated with age-related diseases including cancer and cardiovascular diseases. However, the associations between GAA and muscle mass and function are unknown. METHODS We estimated measures of GAA in 1 118 Black and White participants from the Coronary Artery Risk Development in Young Adults (CARDIA) Study at exam years (Y) 15 (2000-2001) and 20 (2005-2006). Abdominal muscle composition was measured using CT scans at the Y25 (2010-2011) visit. We used multivariate regression models to examine associations of GAA estimates with muscle imaging measurements. RESULTS In the CARDIA study, each 1-year higher GAA was associated with an average 1.1% (95% confidence interval [CI]: 0.6%, 1.5%) higher intermuscular adipose tissue (IMAT) volume for abdominal muscles. Each 1-year higher GAA was associated with an average -0.089 Hounsfield unit (HU; 95% CI: -0.146, -0.032) lower lean muscle attenuation and an average -0.049 HU (95% CI: -0.092, -0.007) lower IMAT attenuation for abdominal muscles. Stratified analyses showed that GAA was more strongly associated with higher abdominal muscle IMAT volume in females and significantly associated with lower lean muscle attenuation for White participants only. CONCLUSIONS Higher GAA is associated with higher abdominal muscle IMAT volume and lower lean muscle attenuation in a midlife population.
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Affiliation(s)
- Tao Gao
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Global Oncology, Institute for Global Health, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Yinan Zheng
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Global Oncology, Institute for Global Health, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Brian T Joyce
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Global Oncology, Institute for Global Health, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Minjung Kho
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
| | - James G Terry
- Department of Radiology, Vanderbilt University Medicine Center, Nashville, Tennessee, USA
| | - Jun Wang
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Global Oncology, Institute for Global Health, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Drew Nannini
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Global Oncology, Institute for Global Health, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - John Jeffrey Carr
- Department of Radiology, Vanderbilt University Medicine Center, Nashville, Tennessee, USA
| | - Sangeeta Nair
- Department of Radiology, Vanderbilt University Medicine Center, Nashville, Tennessee, USA
| | - Kai Zhang
- Department of Environmental Health Sciences, School of Public Health, University at Albany, State University of New York, Albany, New York, USA
| | - Wei Zhao
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, Michigan, USA
| | - David R Jacobs
- Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, Minnesota, USA
| | - Pamela J Schreiner
- Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, Minnesota, USA
| | - Philip Greenland
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Donald Lloyd-Jones
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jennifer A Smith
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, Michigan, USA
| | - Lifang Hou
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Global Oncology, Institute for Global Health, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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Alsamman RA, Shousha TM, Faris ME, Abdelrahim DN, Arumugam A. Association of sociodemographic, anthropometric, and sleep quality factors with accelerometer-measured sitting and physical activity times among Emirati working women during the COVID-19 pandemic: A cross-sectional study. WOMEN'S HEALTH (LONDON, ENGLAND) 2024; 20:17455057231225539. [PMID: 38279820 PMCID: PMC10822070 DOI: 10.1177/17455057231225539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/29/2024]
Abstract
BACKGROUND Although a significant lack of physical activity has been linked to an increase in obesity among Emirati women, the factors associated with accelerometer-measured sitting and physical activity times in Emirati women remain unclear. OBJECTIVES To explore the association of accelerometer-measured sitting and physical activity times with sociodemographic, anthropometric, and sleep quality factors among Emirati working women. DESIGN A cross-sectional study. METHODS A convenience sample of 163 healthy working Emirati women aged 18-45 years was used. Sedentary and physical activity times were measured using the Fibion accelerometers worn on the thighs for 4-7 days. General demographic information, anthropometric measurements, and self-reported sleep quality (Pittsburgh sleep quality index score) were collected. Only participants who had valid data (i.e. wear time of ⩾600 min (10 h) per day for a minimum of 4-7 days) were evaluated. All values were normalized to a 16-h day to mitigate differences in wear time among the participants. RESULTS Overall, 110 Emirati women were included. The mean sitting time per 16-h day was 11.6 ± 1.1 h; mean moderate activity time per day, 40.88 ± 17.99 min; and mean vigorous activity time per day, 2.41 ± 1.21 min. Longer sitting time was associated with high body fat, secondary education, and divorce. Sitting time was reduced in those with good sleep quality. Moderate-to-vigorous physical activity time was increased in women with postgraduate education and was decreased in women with a longer work experience and with comorbidities. The total activity time increased with increasing age and good sleep quality, whereas it decreased with increasing body fat, presence of at least one comorbidity, secondary education, and divorce. CONCLUSION Certain demographic, anthropometric, and sleep quality factors were associated with accelerometer-measured sitting and physical activity times among Emirati working women. Future longitudinal studies should consider these factors when investigating predictors of physical activity levels in this population.
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Affiliation(s)
- Razan Adnan Alsamman
- Department of Physiotherapy, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Tamer Mohamed Shousha
- Department of Physiotherapy, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Neuromusculoskeletal Rehabilitation Research Group, RIMHS–Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Faculty of Physical Therapy, Cairo University, Giza, Egypt
| | - MoezAlIslam E. Faris
- Department of Clinical Nutrition and Dietetics, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Nutrition and Food Research Group, Research Institute for medical and Health Sciences (RIMHS), University of Sharjah, Sharjah, United Arab Emirates
- Environment and Cancer Research Group, Research Institute for medical and Health Sciences (RIMHS), University of Sharjah, Sharjah, United Arab Emirates
| | - Dana N. Abdelrahim
- Research Institute for medical and Health Sciences (RIMHS), University of Sharjah, Sharjah, United Arab Emirates
| | - Ashokan Arumugam
- Department of Physiotherapy, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Neuromusculoskeletal Rehabilitation Research Group, RIMHS–Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Sustainable Engineering Asset Management Research Group, RISE-Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, United Arab Emirates
- Adjunct Faculty, Department of Physiotherapy, Manipal College of Health professions, Manipal Academy of Higher Education, Manipal, India
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Ten-Year Changes in Television Viewing and Physical Activity Are Associated With Concurrent 10-Year Change in Pericardial Adiposity: The Coronary Artery Risk Development in Young Adults Study. J Phys Act Health 2022; 19:531-539. [PMID: 35894964 DOI: 10.1123/jpah.2021-0726] [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: 11/10/2021] [Revised: 05/08/2022] [Accepted: 06/01/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Longitudinal association of television (TV) viewing and moderate- to vigorous-intensity physical activity (MVPA) with pericardial adipose tissue (PAT) is unclear. METHODS We studied Coronary Artery Risk Development in Young Adults Study participants transitioning from early to middle age at Coronary Artery Risk Development in Young Adults (CARDIA) exam years 15 (2000-2001; N = 1975, mean age = 40.4, 55.4% women, 45.3% Black) and 25 (2010-2011). TV viewing (in hours per day) and MVPA (in exercise units) were measured using a self-report questionnaire. PAT volume (in milliliters) was measured using computed tomography. Multivariable linear regression was used to examine the associations of tertiles of 10-year change (years 25-15) in TV viewing and MVPA with a concurrent change in PAT with adjustments for covariates. RESULTS Participants in the highest tertile of 10-year increase in TV viewing had a greater increase in PAT (β = 2.96 mL, P < .01). Participants in both middle (β = -3.93 mL, P < .01) and highest (β = -6.22 mL, P < .01) tertiles of 10-year changes in MVPA had smaller mean increases in PAT over 10 years when compared with the lowest tertile in fully adjusted models. CONCLUSIONS Reducing or maintaining early-midlife levels of TV viewing and increasing MVPA may be associated with less PAT accumulation with age.
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Oh M, Jacobs DR, Gabriel KP, Bao W, Pierce GL, Carr LJ, Ding J, Whitaker KM. Cross-Sectional and Longitudinal Associations of Lifestyle Behaviors with Pericardial Adipose Tissue: The MESA Study. Med Sci Sports Exerc 2022; 54:984-993. [PMID: 35576135 PMCID: PMC9139422 DOI: 10.1249/mss.0000000000002866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE We examined associations of sedentary behavior (SB), light-intensity physical activity (LPA), and moderate-to-vigorous intensity physical activity (MVPA) with pericardial adipose tissue (PAT). METHODS Adults from the Multi-Ethnic Study of Atherosclerosis were included from exam years 1 (2000-2002; N = 6057; mean age, 62.2 yr; 52.9% female, 38.0% White; 12.8% Chinese American, 26.7% African American, 22.5% Hispanic American), 2 (2002-2004), and 3 (2004-2005). Weekly volume of SB, LPA, and MVPA (in MET-hours per week) was reported using a questionnaire. PAT volume (in cubic centimeters) was quantified using computed tomography, analysis of covariance, and repeated-measures linear mixed models with adjustment for covariates (sociodemographics, cardiovascular disease risk factors, inflammation, waist circumference) tested cross-sectional and longitudinal associations, respectively. RESULTS In cross-sectional analysis, the highest tertile of SB (β = 2.71; 95% confidence interval (CI), 0.69 to 4.73; P < 0.01) and the middle tertile of MVPA (β = -1.97; 95% CI, -3.92 to -0.02; P < 0.05) were associated with PAT, whereas no association was observed for LPA in fully adjusted models. In longitudinal models, SB, LPA, and MVPA were not associated with PAT in the full study sample; however, LPA was inversely associated with PAT among Whites in stratified analysis (β = -0.54; 95% CI, -0.95 to -0.13; P < 0.05). CONCLUSIONS Lower SB and higher LPA (among Whites only) and MVPA may be associated with lower PAT, but additional longitudinal research is needed.
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Affiliation(s)
- Minsuk Oh
- Department of Public Health, Baylor University, Waco,
TX
| | - David R. Jacobs
- Division of Epidemiology and Community Health, University
of Minnesota, Minneapolis, MN
| | | | - Wei Bao
- Department of Epidemiology, University of Iowa, Iowa City,
IA
| | - Gary L. Pierce
- Department of Health and Human Physiology, University of
Iowa, Iowa City, IA
| | - Lucas J. Carr
- Department of Health and Human Physiology, University of
Iowa, Iowa City, IA
| | - Jingzhong Ding
- Gerontology and Geriatric Medicine, Wake Forest School of
Medicine, Winston-Salem, NC
| | - Kara M. Whitaker
- Department of Epidemiology, University of Iowa, Iowa City,
IA
- Department of Health and Human Physiology, University of
Iowa, Iowa City, IA
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Kim YH, Jeong MK, Park H, Park SK. Effects of Regular Taekwondo Intervention on Health-Related Physical Fitness, Cardiovascular Disease Risk Factors and Epicardial Adipose Tissue in Elderly Women with Hypertension. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:2935. [PMID: 33809392 PMCID: PMC7999820 DOI: 10.3390/ijerph18062935] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 12/18/2022]
Abstract
Regular exercise has been proven to prevent hypertension and to help in the management of hypertension. There is a lack of studies examining changes in these issues as a result of Taekwondo training intervention. The aim of the current trial is to identify the effects of a regular Taekwondo (TKD) training program on health-related physical fitness (HRPF), cardiovascular disease (CVD) risk factors, inflammatory factors, and epicardial adipose tissue (EAT) in elderly women with hypertension. To accomplish this, 20 participants, who were older women with hypertension, were divided into a TKD group (n = 10) and a control group (n = 10). The TKD program was conducted in program for 90 min, three times a week, for 12 weeks. Outcomes, including body composition, blood pressure (BP), HRPF, cardiovascular risk factor and EAT, were measured before and after the Taekwondo program. The 12-week TKD program improved body composition, BP, HRPF, CVD risk factor, and EAT in elderly women with hypertension relative to controls. Meanwhile, EAT and interukin-1β (r = 0.530, p < 0.05), monocyte chemotactic protein-1 (r = 0.524, p < 0.05), triglyceride (r = 0.493, p < 0.05) and sedentary behavior (r = 0.459, p < 0.05) presented a positive correlation, while EAT and lean body mass (r = -0.453, p < 0.05) showed a negative correlation. The 12-week regular TKD training intervention was found to be effective in reducing the thickness of EAT measured by multi-detector computed tomography and can also enhance health-related physical fitness and risk factors of CVD in older individuals with hypertension.
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Affiliation(s)
- Yun Hwan Kim
- College of Arts and Sports, Dong-A University, Busan 49315, Korea; (Y.H.K.); (M.K.J.)
| | - Min Ki Jeong
- College of Arts and Sports, Dong-A University, Busan 49315, Korea; (Y.H.K.); (M.K.J.)
| | - Hyuntae Park
- Department of Health Sciences, Graduate School, Dong-A University, Busan 49315, Korea
- Institute of Convergence Bio-Health, Dong-A University, Busan 49315, Korea
| | - Sang Kab Park
- College of Arts and Sports, Dong-A University, Busan 49315, Korea; (Y.H.K.); (M.K.J.)
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Larivière C, Henry SM, Preuss R. Structural remodeling of the lumbar multifidus, thoracolumbar fascia and lateral abdominal wall perimuscular connective tissues: A search for its potential determinants. J Anat 2021; 238:536-550. [PMID: 33070313 PMCID: PMC7855088 DOI: 10.1111/joa.13330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 09/14/2020] [Accepted: 09/17/2020] [Indexed: 01/07/2023] Open
Abstract
Recently remodeling of lumbar soft tissues has received increased research attention. However, the major determinants that influence remodeling need to be elucidated in order to understand the impact of different rehabilitation modalities on tissue remodeling. The main aim of this study was to explore the between-subject variance of different measures of lumbar soft tissues quantified with rehabilitative ultrasound imaging (RUSI). RUSI measures (n = 8) were collected from 30 subjects without and 34 patients with LBP: (1) lumbar multifidus (LM) echogenicity (fatty infiltration/fibrosis) at three vertebral levels (L3/L4, L4/L5 and L5/S1) (n = 3); (2) posterior layer thickness of the thoracolumbar fascia (n = 1); and (3) thickness of the fasciae surrounding the external oblique (EO), internal oblique (IO), and transversus abdominis (TrA) (n = 4). Forward stepwise multivariate regression modeling was conducted with these RUSI measures as dependent variables, using the following independent variables as potential determinants: age, sex, the presence of LBP, body size/composition characteristics (height, weight, trunk length, subcutaneous tissue thickness over the abdominal, and LM muscles), trunk muscle function (or activation) as determined with the percent thickness change of LM, EO, IO, and TrA muscles during a standardized effort (RUSI measures), and physical activity level during sport and leisure activities as estimated with a self-report questionnaire. Two or three statistically significant predictors (or determinants) were selected in the regression model of each RUSI measure (n = 8 models), accounting for 26-64% of their total variance. The subcutaneous tissue thickness on the back accounted for 15-30% variance of LM echogenicity measures and thoracolumbar fascia thickness while the subcutaneous tissue thickness over the abdominals accounted for up to 42% variance of the fascia separating the subcutaneous adipose tissues and the EO muscle. The thickness of IO at rest accounted for 13-21% variance of all investigated abdominal fasciae except the fascia separating the subcutaneous adipose tissue and EO. Pain status accounted for 13-18% variance of the anterior and posterior fasciae of the TrA. Age accounted for 11-14% variance of LM echogenicity at all investigated vertebral levels while sex accounted for 15-21% variance of LM echogenicity at L3/L4 and fascia separating subcutaneous adipose tissue and EO muscle. The function (or activation) of EO and LM at L3/L4 accounted for 8-11% variance of the thoracolumbar fascia and fascia separating TrA and intra-abdominal content (TrA posterior fascia), respectively. Finally, the physical activity level during sport activities accounted for 7% variance of the fascia separating the subcutaneous adipose tissues and the EO muscle. These findings suggest that determinants other than body size characteristics may impact the remodeling of lumbar soft tissues, more importantly the subcutaneous adipose tissue deposits (thickness RUSI measures), which are associated with ectopic fat deposition in the LM and in the fasciae that are more closely positioned to the surface. While age, sex, and pain status explain some variability, modifiable factors such as physical activity level as well as trunk muscle thickness and function were involved. Overall, these results suggest that rehabilitation can potentially impact tissue remodeling, particularly in terms of intramuscular and perimuscular adipose tissues.
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Affiliation(s)
- Christian Larivière
- Institut de recherche Robert‐Sauvé en santé et en sécurité du travail (IRSST)MontréalQuébecCanada,Center for Interdisciplinary Research in Rehabilitation of Greater Montreal (CRIR)Institut Universitaire sur la réadaptation en déficience physique de Montréal (IURDPM)Centre intégré universitaire de santé et de services sociaux du Centre‐Sud‐de‐l’Ile‐de‐Montréal (CCSMTL)MontréalQuébecCanada
| | - Sharon M. Henry
- Department of Neurological SciencesUniversity of VermontBurlingtonVTUSA
| | - Richard Preuss
- Center for Interdisciplinary Research in Rehabilitation of Greater Montreal (CRIR)Institut Universitaire sur la réadaptation en déficience physique de Montréal (IURDPM)Centre intégré universitaire de santé et de services sociaux du Centre‐Sud‐de‐l’Ile‐de‐Montréal (CCSMTL)MontréalQuébecCanada,School of Physical & Occupational TherapyMcGill UniversityMontréalQCCanada
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Vermote M, Deliens T, Deforche B, D'Hondt E. The impact of non-residential grandchild care on physical activity and sedentary behavior in people aged 50 years and over: study protocol of the Healthy Grandparenting Project. BMC Public Health 2021; 21:38. [PMID: 33407287 PMCID: PMC7789577 DOI: 10.1186/s12889-020-10024-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 12/08/2020] [Indexed: 11/11/2022] Open
Abstract
Background Finding effective ways to support people aged > 50 years to develop adequate levels of physical activity and sedentary behavior is necessary as these behaviors are positively related to the maintenance of functional independence and health-related quality of life. Given the widespread provision of grandparental child care, examining its impact on grandparents’ energy-expenditure related behavior in the broader context of health is imperative. Therefore, the Healthy Grandparenting Project will aim to investigate the levels of physical activity and sedentary behavior, body composition and health-related quality of life in grandparents caring for their grandchildren and to compare these outcomes with non-caregiving grandparents and older adults without grandchildren, both momentarily and over time. An additional purpose is to identify possible predictors of potential changes over time. Methods A prospective cohort study will run over a period of 2 years, including three test occasions with a one-year time interval in between (T0 = baseline, T1 = 12 months, T2 = 24 months). A total of 276 participants will be recruited in Flanders through non-probability quota sampling (50–50% men-women), of which 92 caregiving grandparents, 92 non-caregiving grandparents and 92 non-grandparents. All three subsamples will be matched for age and sex. At each test occasion, anthropometric and body composition measurements will be determined. Participants’ levels of physical activity and sedentary behavior will be assessed both objectively and subjectively by means of accelerometry and self-report questionnaires. Information about their grandchildren and the provided grandparental care (if applicable) as well as their health-related quality of life will also be assessed using self-report questionnaires. Mixed modelling will be used to identify differences in physical activity, sedentary behavior, body composition and health-related quality of life between the subsamples at baseline, as well as to evaluate and compare changes in energy-expenditure related behavior over time between subsamples and to identify predictors of the detected changes. Discussion The Healthy Grandparenting Project is an innovative study examining the levels of physical activity and sedentary behavior in caregiving grandparents, non-caregiving grandparents and non-grandparents. Obtained results will help in the development of campaigns to maintain/improve health in adults at a more advanced age. Trial registration clinicaltrials.gov, Identifier: NTC04307589. Registered March 2020.
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Affiliation(s)
- Marie Vermote
- Department of Movement and Sport Sciences, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium. .,Department of Public Health and Primary Care, Ghent University, C. Heymanslaan 10, 9000, Ghent, Belgium. .,Research Foundation - Flanders (FWO), Egmontstraat 5, 1000, Brussels, Belgium.
| | - Tom Deliens
- Department of Movement and Sport Sciences, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium
| | - Benedicte Deforche
- Department of Movement and Sport Sciences, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium.,Department of Public Health and Primary Care, Ghent University, C. Heymanslaan 10, 9000, Ghent, Belgium
| | - Eva D'Hondt
- Department of Movement and Sport Sciences, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium
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Prevalence, diagnostic criteria, and factors associated with sarcopenic obesity in older adults from a low middle income country: A systematic review. Clin Nutr ESPEN 2020; 41:94-103. [PMID: 33487312 DOI: 10.1016/j.clnesp.2020.11.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 10/30/2020] [Accepted: 11/03/2020] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To evaluate the scientific evidences on the prevalence, diagnostic criteria, and factors related to sarcopenic obesity (SO) in Brazilian older adults. METHODS this systematic review was based on searches of the databases PubMed, Science Direct, Excerpta Medica Database (Embase), Web of Science, Scientific Electronic Library Online (SciELO), and Scopus. The systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA). The inclusion criteria were: original articles of observational design that evaluated the presence of sarcopenic obesity in Brazilian older adults (≥60 years). Therefore, studies that investigated only obesity or sarcopenia, animal studies, review studies, congress publications, theses, dissertations, book chapters, editorials, letters to the editor, and newspaper articles were not included. RESULTS The initial screening identified 549 records. After removing the duplicates, assessing the titles and abstracts, and the complete analysis of the papers, 12 studies were included in the review. The sample size of the studies ranged from 56 to 1373 subjects, most of them selected by convenience sampling (n = 11) and exclusively with women (n = 9). The prevalence of SO varied from 4.4% to 48.4%. No consensus was found on the diagnostic criteria for SO. The main associations identified were between SO and decrease in muscle strength, aerobic fitness, gait speed, and increase in frequency of frailty and cardiometabolic and inflammatory alterations. CONCLUSIONS Epidemiological studies conducted so far in Brazil are heterogeneous, which limits the possibility of comparison between prevalence and distribution of sarcopenic obesity among older adults. Further studies with representative samples of the population are required to understand the magnitude of SO in this group.
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Anton SD, Cruz-Almeida Y, Singh A, Alpert J, Bensadon B, Cabrera M, Clark DJ, Ebner NC, Esser KA, Fillingim RB, Goicolea SM, Han SM, Kallas H, Johnson A, Leeuwenburgh C, Liu AC, Manini TM, Marsiske M, Moore F, Qiu P, Mankowski RT, Mardini M, McLaren C, Ranka S, Rashidi P, Saini S, Sibille KT, Someya S, Wohlgemuth S, Tucker C, Xiao R, Pahor M. Innovations in Geroscience to enhance mobility in older adults. Exp Gerontol 2020; 142:111123. [PMID: 33191210 PMCID: PMC7581361 DOI: 10.1016/j.exger.2020.111123] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 02/07/2023]
Abstract
Aging is the primary risk factor for functional decline; thus, understanding and preventing disability among older adults has emerged as an important public health challenge of the 21st century. The science of gerontology - or geroscience - has the practical purpose of "adding life to the years." The overall goal of geroscience is to increase healthspan, which refers to extending the portion of the lifespan in which the individual experiences enjoyment, satisfaction, and wellness. An important facet of this goal is preserving mobility, defined as the ability to move independently. Despite this clear purpose, this has proven to be a challenging endeavor as mobility and function in later life are influenced by a complex interaction of factors across multiple domains. Moreover, findings over the past decade have highlighted the complexity of walking and how targeting multiple systems, including the brain and sensory organs, as well as the environment in which a person lives, can have a dramatic effect on an older person's mobility and function. For these reasons, behavioral interventions that incorporate complex walking tasks and other activities of daily living appear to be especially helpful for improving mobility function. Other pharmaceutical interventions, such as oxytocin, and complementary and alternative interventions, such as massage therapy, may enhance physical function both through direct effects on biological mechanisms related to mobility, as well as indirectly through modulation of cognitive and socioemotional processes. Thus, the purpose of the present review is to describe evolving interventional approaches to enhance mobility and maintain healthspan in the growing population of older adults in the United States and countries throughout the world. Such interventions are likely to be greatly assisted by technological advances and the widespread adoption of virtual communications during and after the COVID-19 era.
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Affiliation(s)
- Stephen D Anton
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Yenisel Cruz-Almeida
- University of Florida, Department of Community Dentistry and Behavioral Science, 1329 SW Archer Road, Gainesville, FL 32610, United States.
| | - Arashdeep Singh
- University of Florida, Department of Pharmacodynamics, College of Pharmacy, 1345 Center Drive, Gainesville, FL 32610, United States.
| | - Jordan Alpert
- University of Florida, College of Journalism and Communications, Gainesville, FL 32610, United States.
| | - Benjamin Bensadon
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Melanie Cabrera
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - David J Clark
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Natalie C Ebner
- University of Florida, Department of Psychology, 945 Center Drive, Gainesville, FL 32611, United States.
| | - Karyn A Esser
- University of Florida, Department of Physiology and Functional Genomics, 1345 Center Drive, Gainesville, FL, United States.
| | - Roger B Fillingim
- University of Florida, Department of Community Dentistry and Behavioral Science, 1329 SW Archer Road, Gainesville, FL 32610, United States.
| | - Soamy Montesino Goicolea
- University of Florida, Department of Community Dentistry and Behavioral Science, 1329 SW Archer Road, Gainesville, FL 32610, United States.
| | - Sung Min Han
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Henrique Kallas
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Alisa Johnson
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Christiaan Leeuwenburgh
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Andrew C Liu
- University of Florida, Department of Physiology and Functional Genomics, 1345 Center Drive, Gainesville, FL, United States.
| | - Todd M Manini
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Michael Marsiske
- University of Florida, Department of Clinical & Health Psychology, 1225 Center Drive, Gainesville, FL 32610, United States.
| | - Frederick Moore
- University of Florida, Department of Surgery, Gainesville, FL 32610, United States.
| | - Peihua Qiu
- University of Florida, Department of Biostatistics, Gainesville, FL 32611, United States.
| | - Robert T Mankowski
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Mamoun Mardini
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Christian McLaren
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Sanjay Ranka
- University of Florida, Department of Computer & Information Science & Engineering, Gainesville, FL 32611, United States.
| | - Parisa Rashidi
- University of Florida, Department of Biomedical Engineering. P.O. Box 116131. Gainesville, FL 32610, United States.
| | - Sunil Saini
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Kimberly T Sibille
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Shinichi Someya
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Stephanie Wohlgemuth
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Carolyn Tucker
- University of Florida, Department of Psychology, 945 Center Drive, Gainesville, FL 32611, United States.
| | - Rui Xiao
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
| | - Marco Pahor
- University of Florida, Department of Aging and Geriatric Research, 2004 Mowry Road, Gainesville, FL 32611, United States.
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LaMonte MJ, Larson JC, Manson JE, Bellettiere J, Lewis CE, LaCroix AZ, Bea JW, Johnson KC, Klein L, Noel CA, Stefanick ML, Wactawski-Wende J, Eaton CB. Association of Sedentary Time and Incident Heart Failure Hospitalization in Postmenopausal Women. Circ Heart Fail 2020; 13:e007508. [PMID: 33228398 PMCID: PMC7738397 DOI: 10.1161/circheartfailure.120.007508] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND The 2018 US Physical Activity Guidelines recommend reducing sedentary behavior (SB) for cardiovascular health. SB's role in heart failure (HF) is unclear. METHODS We studied 80 982 women in the Women's Health Initiative Observational Study, aged 50 to 79 years, who were without known HF and reported ability to walk ≥1 block unassisted at baseline. Mean follow-up was 9 years for physician-adjudicated incident HF hospitalization (1402 cases). SB was assessed repeatedly by questionnaire. Time-varying total SB was categorized according to awake time spent sitting or lying down (≤6.5, 6.6-9.5, >9.5 h/d); sitting time (≤4.5, 4.6-8.5, >8.5 h/d) was also evaluated. Hazard ratios and 95% CI were estimated using Cox regression. RESULTS Controlling for age, race/ethnicity, education, income, smoking, alcohol, menopausal hormone therapy, and hysterectomy status, higher HF risk was observed across incremental tertiles of time-varying total SB (hazard ratios [95% CI], 1.00 [referent], 1.15 [1.01-1.31], 1.42 [1.25-1.61], trend P<0.001) and sitting time (1.00 [referent], 1.14 [1.01-1.28], 1.54 [1.34-1.78], trend P<0.001). The inverse trends remained significant after further controlling for comorbidities including time-varying myocardial infarction and coronary revascularization (hazard ratios: SB, 1.00, 1.11, 1.27; sitting, 1.00, 1.09, 1.37, trend P<0.001 each) and for baseline physical activity (hazard ratios: SB 1.00, 1.10, 1.24; sitting 1.00, 1.08, 1.33, trend P<0.001 each). Associations with SB exposures were not different according to categories of baseline age, race/ethnicity, body mass index, physical activity, physical functioning, diabetes, hypertension, or coronary heart disease. CONCLUSIONS SB was associated with increased risk of incident HF hospitalization in postmenopausal women. Targeted efforts to reduce SB could enhance HF prevention in later life.
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Affiliation(s)
- Michael J. LaMonte
- University at Buffalo, Department of Epidemiology and Environmental Health, Buffalo, NY
| | | | - JoAnn E. Manson
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - John Bellettiere
- University of California San Diego, Department of Family Medicine and Public Health, San Diego, CA
| | - Cora E. Lewis
- University of Alabama Birmingham, Department of Epidemiology, Birmingham, AL
| | - Andrea Z. LaCroix
- University of California San Diego, Department of Family Medicine and Public Health, San Diego, CA
| | | | | | - Liviu Klein
- University of California San Francisco School of Medicine, San Francisco, CA
| | - Corinna A. Noel
- Brown University Warren Alpert School of Medicine, and School of Public Health, Providence, RI
| | - Marcia L. Stefanick
- Stanford University School of Medicine and Prevention Research Center, Palo Alto, CA
| | - Jean Wactawski-Wende
- University at Buffalo, Department of Epidemiology and Environmental Health, Buffalo, NY
| | - Charles B. Eaton
- Brown University Warren Alpert School of Medicine, and School of Public Health, Providence, RI
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Association of smoking with abdominal adipose deposition and muscle composition in Coronary Artery Risk Development in Young Adults (CARDIA) participants at mid-life: A population-based cohort study. PLoS Med 2020; 17:e1003223. [PMID: 32692748 PMCID: PMC7373261 DOI: 10.1371/journal.pmed.1003223] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 06/18/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Smokers have lower risk of obesity, which some consider a "beneficial" side effect of smoking. However, some studies suggest that smoking is simultaneously associated with higher central adiposity and, more specifically, ectopic adipose deposition. Little is known about the association of smoking with intermuscular adipose tissue (IMAT), an ectopic adipose depot associated with cardiovascular disease (CVD) risk and a key determinant of muscle quality and function. We tested the hypothesis that smokers have higher abdominal IMAT and lower lean muscle quality than never smokers. METHODS AND FINDINGS We measured abdominal muscle total, lean, and adipose volumes (in cubic centimeters) and attenuation (in Hounsfield units [HU]) along with subcutaneous (SAT) and visceral adipose tissue (VAT) volumes using computed tomography (CT) in 3,020 middle-aged Coronary Artery Risk Development in Young Adults (CARDIA) participants (age 42-58, 56.3% women, 52.6% white race) at the year 25 (Y25) visit. The longitudinal CARDIA study was initiated in 1985 with the recruitment of young adult participants (aged 18-30 years) equally balanced by female and male sex and black and white race at 4 field centers located in Birmingham, AL, Chicago, IL, Minneapolis, MN, and Oakland, CA. Multivariable linear models included potential confounders such as physical activity and dietary habits along with traditional CVD risk factors. Current smokers had lower BMI than never smokers. Nevertheless, in the fully adjusted multivariable model with potential confounders, including BMI and CVD risk factors, adjusted mean (95% CI) IMAT volume was 2.66 (2.55-2.76) cm3 in current smokers (n = 524), 2.36 (2.29-2.43) cm3 in former smokers (n = 944), and 2.23 (2.18-2.29) cm3 in never smokers (n = 1,552) (p = 0.007 for comparison of former versus never smoker, and p < 0.001 for comparison of current smoker versus never and former smoker). Moreover, compared to participants who never smoked throughout life (41.6 [41.3-41.9] HU), current smokers (40.4 [39.9-40.9] HU) and former smokers (40.8 [40.5-41.2] HU) had lower lean muscle attenuation suggesting lower muscle quality in the fully adjusted model (p < 0.001 for comparison of never smokers with either of the other two strata). Among participants who had ever smoked, pack-years of smoking exposure were directly associated with IMAT volume (β [95% CI]: 0.017 [0.010-0.025]) (p < 0.001). Despite having less SAT, current smokers also had higher VAT/SAT ratio than never smokers. These findings must be viewed with caution as residual confounding and/or reverse causation may contribute to these associations. CONCLUSIONS We found that, compared to those who never smoked, current and former smokers had abdominal muscle composition that was higher in adipose tissue volume, a finding consistent with higher CVD risk and age-related physical deconditioning. These findings challenge the belief that smoking-associated weight loss or maintenance confers a health benefit.
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13
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Engaging the ASEAN Diaspora: Type 2 Diabetes Prevalence, Pathophysiology, and Unique Risk Factors among Filipino Migrants in the United States. J ASEAN Fed Endocr Soc 2019; 34:126-133. [PMID: 33442147 PMCID: PMC7784106 DOI: 10.15605/jafes.034.02.02] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 10/30/2019] [Indexed: 12/16/2022] Open
Abstract
Type 2 diabetes prevalence is rising rapidly in Southeast Asia (SEA) where urbanization and adoption of ‘western’ behavioral lifestyles are attributed as predominant risk factors. The Southeast Asian diaspora to the United States has resulted in a sizable portion of migrant and US born SEAs, with approximately 4 million Filipino Americans, 2 million Vietnamese-Americans, Cambodians (330,000), and Thai (300,000) as the most populous. Their longer exposure to a western lifestyle and participation in clinical studies with other racial/ethnic groups, provide opportunities to evaluate etiologic factors which might inform trends and intervention opportunities among residents of Southeast Asia. Epidemiologic studies in the US have identified higher T2D prevalence among Filipinos (16.1%) compared to groups perceived to be at highest risk for T2D, namely Latinos (14.0%), Black (13.7%), and Native Americans (13.4%), while SEAs (including Burmese, Cambodian, Indonesian, Laotian, Malaysian, and Thai, 10.5%) and Vietnamese (9.9%) had higher T2D risk compared to Whites (7.7%), despite their absence of general obesity. Asian-Americans, including SEAs, East and South Asians, collectively have higher rates of undiagnosed T2D compared to other racial/ethnic groups in the US. Almost half (44%) of Filipinos with newly diagnosed T2D have isolated post-challenge hyperglycemia and will remain undiagnosed if current screening practices remain limited to measures of glycosylated hemoglobin and fasting plasma glucose. The University of California San Diego Filipino Health Study found excess visceral adipose tissue accumulation, low ratio of muscle to total abdominal mass area, low adiponectin concentration, multiparity (≥ 6 live births), and sleep insufficiency (<7 hours) to be unique T2D risk factors among Filipino-American women, even after adjusting for established T2D risk factors including hypertension and parental history of T2D. Social determinants such as low educational attainment (less than college completion), and sustained social disadvantage during childhood and adulthood were independently associated with T2D risk. Gestational diabetes is a known risk factor for future T2DM among women; Northern California data shows that following Asian Indians, gestational diabetes was highest among Filipina and SEA parturients, who had twice the GDM prevalence as Black, Hispanic, and White women. Identification of novel T2D risk factors among SEAs may guide early diagnosis, inform pathophysiology, and identify unique opportunities for T2D prevention and management.
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de Almeida AC, Pedroso MG, Aily JB, Gonçalves GH, Pastre CM, Mattiello SM. Influence of a periodized circuit training protocol on intermuscular adipose tissue of patients with knee osteoarthritis: protocol for a randomized controlled trial. BMC Musculoskelet Disord 2018; 19:421. [PMID: 30497420 PMCID: PMC6267088 DOI: 10.1186/s12891-018-2325-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 10/26/2018] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The objective of this study is to analyze the influence of a 14-week periodized circuit training protocol on patients with knee osteoarthritis (OA), in randomized intervention groups, on thigh intermuscular adipose tissue (interMAT), body composition, systemic inflammation, cartilage degradation, and its repercussion on pain, functional performance and quality of life. METHODS This study presents a protocol for a randomized controlled trial. Sixty selected participants diagnosed with knee OA grades II and III, 40-65 years old and BMI < 30 kg/m2, will be randomly divided into three groups:periodized circuit training, strength training, and educational protocol. The circuit training and strength training protocols consist of 14-week training protocols conducted 3 times a week. The circuit training group will perform selected exercises previously stratified as light, moderate, and intense, arranged progressively in a circuit model, the strength group will perform regular strength exercises, and the educational protocol group will participate in a 14-week protocol with lectures twice a month about healthy lifestyles. Baseline and follow-up evaluations will be conducted for thigh interMAT (computed tomography), body composition (DXA), inflammation (IL-1β, IL-6, IL-10, TNF-α, leptin, and adiponectin), and joint degradation biomarkers (uCTX-II and sCOMP), performance-based tests (30s Chair Stand Test, 40 m Fast-paced Walk Test and Stair Climb Test), quadriceps and hamstring maximal isometric voluntary contraction (MIVC), and questionnaires (WOMAC and pain catastrophizing scale). Repeated measures ANOVA will be used to compare differences between groups (circuit training X strength training X educational protocol) at the different times of assessment (baseline x follow-up or baseline x during protocol x follow-up) for each of the dependent variables. When significant main effects were found, the pots hoc Bonferroni test will be used to identify statistical differences. A significance level of 5% (p < 0.05) will be adopted. DISCUSSION This will be the first randomized controlled trial to assess the effects of a circuit training protocol on patients with knee OA on thigh intermuscular adipose tissue (interMAT). Given the prevalence and impact of OA and the widespread availability of this intervention, assessing the efficacy of a low-cost, non-pharmacological, and non-invasive treatment for knee OA patients has the potential for immediate and high clinical impact. TRIAL REGISTRATION ClinicalTrials.gov, NCT02761590 , registered in May 4, 2016.
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Affiliation(s)
- Aline Castilho de Almeida
- Department of Physical Therapy, Federal University of São Carlos (UFSCar), Km 235,Rod. Washington Luís–SP310, Postal code, São Carlos, (SP) 13565-905 Brazil
| | - Maria Gabriela Pedroso
- Department of Physical Therapy, Federal University of São Carlos (UFSCar), Km 235,Rod. Washington Luís–SP310, Postal code, São Carlos, (SP) 13565-905 Brazil
| | - Jessica Bianca Aily
- Department of Physical Therapy, Federal University of São Carlos (UFSCar), Km 235,Rod. Washington Luís–SP310, Postal code, São Carlos, (SP) 13565-905 Brazil
| | - Glaucia Helena Gonçalves
- Department of Physical Therapy, Federal University of São Carlos (UFSCar), Km 235,Rod. Washington Luís–SP310, Postal code, São Carlos, (SP) 13565-905 Brazil
| | - Carlos Marcelo Pastre
- Department of Physical Therapy, São Paulo State University (UNESP) - School of Sciences and Technology, 305, Roberto Simonsen St., Presidente Prudente, (SP) 19060-900 Brazil
| | - Stela Marcia Mattiello
- Department of Physical Therapy, Federal University of São Carlos (UFSCar), Km 235,Rod. Washington Luís–SP310, Postal code, São Carlos, (SP) 13565-905 Brazil
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Associations of Sedentary Behavior and Abdominal Muscle Density: The Multi-Ethnic Study of Atherosclerosis. J Phys Act Health 2018; 15:827-833. [PMID: 30301405 DOI: 10.1123/jpah.2018-0028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Sedentary behaviors (SB) may exacerbate loss of muscle mass and function, independent of physical activity levels. This study examined the associations of SB with abdominal muscle area and density, a marker of muscle quality, in adults. METHODS A total of 1895 participants from the Multi-Ethnic Study of Atherosclerosis completed detailed health history, physical activity and SB questionnaires, computed tomography to quantify body composition, and measurements of inflammatory markers. Analyses included linear and nonlinear regression. RESULTS The mean age and body mass index were 64.6 years and 28 kg·m-2, respectively, and 50% were women. On average, participants engaged in 28 metabolic equivalent hours·week-1 of SB. With adjustment for age, sex, race/ethnicity, physical activity, cardiovascular disease risk factors, and inflammation, multivariable regression modeling revealed a nonlinear (quadratic) relationship between SB and locomotor, stability, and total abdominal muscle density (P < .01) but not muscle area. The SB inflection point at which locomotor, stability, and total abdominal muscle density began to decrease was 38.2, 39.6, and 39.2 metabolic equivalent hours·week-1 of SB, respectively. CONCLUSIONS SB is associated with reduced muscle density when practiced as little as 5.5 metabolic equivalent hours·day-1. These findings may have important implications for SB guidelines for targeting skeletal muscle health in older adults.
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Associations between lean mass and leptin in men with chronic spinal cord injury: Results from the FRASCI-muscle study. PLoS One 2018; 13:e0198969. [PMID: 29949600 PMCID: PMC6021064 DOI: 10.1371/journal.pone.0198969] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 05/28/2018] [Indexed: 11/20/2022] Open
Abstract
Leptin is an adipo-myokine that regulates appetite and energy expenditure by a neuroendocrine feedback loop. Leptin levels are positively correlated with BMI in the spinal cord injury population and leptin levels are greater in individuals with spinal cord injury compared to uninjured controls. Leptin is produced in multiple tissues, including fat, bone, and skeletal muscle and is a putative biomarker of sedentary behavior in older adults. We assessed body composition leptin, adiponectin, and IL-6 levels in 205 men with chronic spinal cord injury. We found no association between age, injury duration, injury level, injury completeness, or walking status and leptin. There was a significant positive association between lean mass and leptin in men with SCI that was independent of fat. Adjusting for body composition, leptin levels were positively associated with IL-6 and negatively associated with adiponectin levels. When considering men with SCI and sarcopenic obesity, only fat mass remained positively associated with leptin. We found no association between IL-6, adiponectin, or lean mass and leptin in the sarcopenic obesity group. Our findings suggest that lean mass is an under recognized, but substantial, source of circulating leptin. Furthermore, SCI-related sarcopenic obesity may result in dysregulated adipo-myokine metabolism with local and systemic physiologic effects.
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Haley AP, Oleson S, Pasha E, Birdsill A, Kaur S, Thompson J, Tanaka H. Phenotypic heterogeneity of obesity-related brain vulnerability: one-size interventions will not fit all. Ann N Y Acad Sci 2018; 1428:89-102. [PMID: 29741211 DOI: 10.1111/nyas.13673] [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: 12/11/2017] [Revised: 02/10/2018] [Accepted: 02/17/2018] [Indexed: 01/07/2023]
Abstract
Intact memory and problem solving are key to functional independence and quality of life in older age. Considering the unprecedented demographic shift toward a greater number of older adults than children in the United States in the next few decades, it is critically important for older adults to maintain work productivity and functional independence for as long as possible. Implementing early interventions focused on modifiable risk factors for cognitive decline at midlife is a strategy with the highest chance of success at present, bearing in mind the current lack of dementia cures. We present a selective, narrative review of evidence linking nutrition, body composition, vascular health, and brain function in midlife to highlight the phenotypic heterogeneity of obesity-related brain vulnerability and to endorse the development of individually tailored lifestyle modification plans for primary prevention of cognitive decline.
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Affiliation(s)
- Andreana P Haley
- Department of Psychology, The University of Texas at Austin, Austin, Texas.,Imaging Research Center, The University of Texas at Austin, Austin, Texas
| | - Stephanie Oleson
- Department of Psychology, The University of Texas at Austin, Austin, Texas
| | - Evan Pasha
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, Texas
| | - Alex Birdsill
- Department of Psychology, The University of Texas at Austin, Austin, Texas
| | - Sonya Kaur
- Department of Psychology, The University of Texas at Austin, Austin, Texas
| | - Janelle Thompson
- Department of Psychology, The University of Texas at Austin, Austin, Texas
| | - Hirofumi Tanaka
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, Texas
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Dahl-Petersen IK, Brage S, Bjerregaard P, Tolstrup JS, Jørgensen ME. Physical Activity and Abdominal Fat Distribution in Greenland. Med Sci Sports Exerc 2018; 49:2064-2070. [PMID: 28574874 DOI: 10.1249/mss.0000000000001337] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
PURPOSE We examined how total volume of physical activity and reallocation of time spent at various objectively measured intensities of physical activity (PA) were associated with overall and abdominal fat distribution in adult Inuit in Greenland. METHODS Data were collected as part of a countrywide cross-sectional health survey in Greenland. A combined accelerometer and HR monitor measured total physical activity energy expenditure (PAEE) and intensities of PA (N = 1536). Visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) were assessed by ultrasonography. Isotemporal substitution modeling was used to analyze the association between substitution of 1 h of sedentary time to light- or moderate-intensity PA and 1 h light-intensity PA to moderate- or vigorous-intensity PA in relation to body mass index (BMI), waist circumference (WC), SAT, and VAT. RESULTS A negative linear association was found for total PAEE and BMI, WC, VAT, and SAT. Exchanging 1 h of sedentary time with light-intensity PA was associated with lower WC (-0.6 cm, P = 0.01), SAT (-0.08 cm, P < 0.001), and VAT (-0.04 cm, P = 0.359). Exchanging light-intensity PA with vigorous-intensity PA resulted in -6.1-cm lower WC (P < 0.001), -0.7-cm lower VAT (P = 0.018) and -0.7-cm lower SAT (P < 0.001). When further adjusting for BMI, the associations were attenuated; however, most of them remained significant, and the directions were mostly unchanged. All 1-, 5-, and 10-min bouts of MVPA were negatively associated with overall and abdominal fat distribution. CONCLUSION Physical activity energy expenditure is associated with lower BMI, WC, and abdominal fat among Greenland Inuit. The importance of promoting an upward shift of the whole PA intensity distribution and to spur even short bouts of MVPA to limit excessive accumulation of SAT and VAT is highlighted.
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Affiliation(s)
- Inger Katrine Dahl-Petersen
- 1National Institute of Public Health, University of Southern Denmark, Copenhagen, DENMARK; 2MRC Epidemiology Unit, Institute of Metabolic Science, Cambridge, UNITED KINGDOM; 3Greenland Centre for Health Research, University of Greenland, Nuuk, GREENLAND; and 4Steno Diabetes Center Copenhagen, Gentofte, DENMARK
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Henson J, Edwardson CL, Morgan B, Horsfield MA, Khunti K, Davies MJ, Yates T. Sedentary Time and MRI-Derived Measures of Adiposity in Active Versus Inactive Individuals. Obesity (Silver Spring) 2018; 26:29-36. [PMID: 29265769 DOI: 10.1002/oby.22034] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 08/22/2017] [Accepted: 09/06/2017] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to examine cross-sectional associations between objectively measured sedentary time and magnetic resonance imaging (MRI)-assessed adiposity in a population at high risk for type 2 diabetes (T2DM) and to determine whether associations are modified by the recommended levels of moderate-to-vigorous physical activity (MVPA). METHODS Sedentary time and MVPA were measured objectively by using accelerometers. Linear regression models examined the association of sedentary time with liver, visceral, subcutaneous, and total abdominal fat (quantified by using MRI). Interaction terms determined whether results were consistent across activity categories (active [> 150 min/wk of MVPA] vs. inactive [< 150 min/wk of MVPA]). RESULTS One hundred and twenty-four participants (age = 64.0 ± 7.1 years; male = 65.3%; BMI = 31.8 ± 5.6 kg/m2 ) were included. Following adjustment, each 60 minutes of sedentary time was associated with 1.74 L higher total abdominal fat, 0.62 L higher visceral fat, 1.14 L higher subcutaneous fat, and 1.86% higher liver fat. When results were stratified by MVPA (active vs. inactive), sedentary time was associated with greater liver, visceral, and total abdominal fat in the inactive group only. CONCLUSIONS These findings suggest that sedentary time is associated with higher levels of inter- and intraorgan fat, but associations with liver, visceral, and total abdominal fat were stronger in those who do not reach the current exercise recommendations for health.
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Affiliation(s)
- Joseph Henson
- Diabetes Research Centre, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Charlotte L Edwardson
- Diabetes Research Centre, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Bruno Morgan
- Department of Cancer Studies and Molecular Medicine, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, UK
| | | | - Kamlesh Khunti
- NIHR Collaborations for Leadership in Applied Health Research and Care (CLAHRC) East Midlands, UK and Diabetes Research Centre, University of Leicester, Leicester, UK
| | - Melanie J Davies
- Diabetes Research Centre, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Thomas Yates
- Diabetes Research Centre, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Leicester, UK
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Yang TT, Fish AF, Kong WM, Gao X, Huang DJ, Feng JT, Zhu JY, Chen T, Lou QQ. Correlates of pericardial adipose tissue volume using multidetector CT scanning in cardiac patients in China. Int J Cardiol 2017; 244:285-289. [PMID: 28684043 DOI: 10.1016/j.ijcard.2017.06.114] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Revised: 06/26/2017] [Accepted: 06/28/2017] [Indexed: 12/22/2022]
Abstract
BACKGROUND Pericardial adipose tissue (PAT) is an emerging cardiovascular risk factor, yet much less is understood about PAT volume in Chinese adults, especially in relation to physical activity. The study explores associations between demographic and clinical variables and PAT volume, using multidetector computed tomography (MDCT) scanning in China. We also examined the relationship between PAT volume and coronary artery disease (CAD). METHODS An observational, correlational study design was used. Chinese (n=163) attended a study visit and underwent MDCT scanning between September 2014 and December 2015. RESULTS Participants were 48.5% male and had a mean age of 60.6 (SD 9.4) years. PAT volume was higher (p=0.001) in males than in females. PAT volume was correlated with age (r=0.388, p=0.001), systolic blood pressure (r=0.205, p=0.009), body mass index (r=0.466, p=0.001), high-density cholesterol (r=-0.282, p=0.001), low-density cholesterol (r=0.177, p=0.024), and triglycerides (r=0.248, p=0.001). Both moderate intensity physical activity energy consumption (r=-0.363, p=0.001) and total physical activity (r=-0.290, p=0.001) had inverse relationships with PAT volume. Total sedentary energy consumption was positively related to PAT volume (r=0.266, p=0.001). Multiple regression revealed that age, male gender, BMI, LDL-C and total physical activity energy consumption were significant predictors of PAT volume (R2=0.465). The relationship between PAT volume and CAD was found to be significant in the adjusted models. CONCLUSIONS Age, male gender, BMI, LDL-C and total physical activity energy consumption were significant predictors of PAT volume, and PAT volume itself is a predictor of CAD.
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Affiliation(s)
- Ting Ting Yang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 100 Shizi Street Hongshan Rd, Nanjing, Jiangsu Province, China; Nursing College, Nanjing University of Chinese Medicine, 138 Xianlin Rd, Nanjing, Jiangsu Province, China
| | - Anne F Fish
- College of Nursing (ISP Program), University of Missouri-St. Louis, One University Blvd, M/C 529, St. Louis, MO, USA.
| | - Wei Min Kong
- Department of Cardiology, The First People's Hospital of Yancheng City, 166 Yulong Rd, Yancheng, Jiangsu Province, China
| | - Xin Gao
- Department of Cardiology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 100 Shizi Street Hongshan Rd, Nanjing, Jiangsu Province, China
| | - De Jian Huang
- Department of Radiology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 100 Shizi Street Hongshan Rd, Nanjing, Jiangsu Province, China
| | - Ji Tao Feng
- Department of Radiology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 100 Shizi Street Hongshan Rd, Nanjing, Jiangsu Province, China
| | - Jun Ya Zhu
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, 624 N. Broadway, Hampton House 648, Baltimore, MD 21205, USA.
| | - Tao Chen
- Department of Clinical Sciences, Liverpool School of Tropical Medicine Pembroke Place, Liverpool L3 5QA, United Kingdom
| | - Qing Qing Lou
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 100 Shizi Street Hongshan Rd, Nanjing, Jiangsu Province, China.
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Adipokines and severity and progression of coronary artery calcium: Findings from the Rancho Bernardo Study. Atherosclerosis 2017; 265:1-6. [PMID: 28825974 DOI: 10.1016/j.atherosclerosis.2017.07.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 07/14/2017] [Accepted: 07/21/2017] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND AIMS Adipokines are known to predict cardiovascular events, yet their association with coronary artery calcium (CAC), a surrogate marker of coronary atherosclerosis and risk factor for cardiovascular disease (CVD), is unclear. We aimed at assessing the association between adipokines and the severity and progression of CAC in healthy older adults, and at exploring potential modification by gender. METHODS 409 men and women from the Rancho Bernardo Study with no known CVD underwent a chest computed tomography scan to determine baseline CAC severity; 329 returned 4.5 years later for a repeat scan to evaluate CAC progression. Adipokines (IL-6, adiponectin, leptin, and TNF-α) were measured from baseline blood samples. Ordinal linear and logistic regression models were used to determine the association of each adipokine with baseline severity and future progression of CAC. RESULTS Adjusting for age and sex, IL-6 and leptin were associated with greater odds of increasing CAC severity (OR = 1.63, 95% CI 1.22-2.19; OR = 1.19, 95% CI 0.99-1.43, respectively, per SD). The association with IL-6 remained significant in models further adjusted for lifestyle, body size, CVD risk factors, and body fat distribution. Adiponectin was associated with CAC progression (OR = 0.68, 95% CI 0.51-0.92 in fully adjusted models). This was modified by sex, with protective effects seen for men (OR = 0.57, 95% CI 0.38-0.85), but not for women (OR = 0.93, 95% CI 0.67-1.32; p-for-interaction = 0.04). CONCLUSIONS IL-6 and leptin predicted greater CAC severity while adiponectin predicted lower odds of CAC progression. More research is needed to explore biological mechanisms, including differences by sex.
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Mainous AG, Tanner RJ, Anton SD, Jo A, Luetke MC. Physical Activity and Abnormal Blood Glucose Among Healthy Weight Adults. Am J Prev Med 2017; 53:42-47. [PMID: 28110936 DOI: 10.1016/j.amepre.2016.11.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 10/18/2016] [Accepted: 11/10/2016] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Physical activity has been linked to prevention and treatment of prediabetes and diabetes in overweight and obese adults. This study examines the relationship between low physical activity levels and risk of abnormal blood glucose (prediabetes or undiagnosed diabetes) in healthy weight adults. METHODS Data from the 2014 Health Survey for England were analyzed in July 2016, focusing on adults with a BMI ≥18.5 and <25 who had never been diagnosed with diabetes (N=1,153). Abnormal blood glucose was defined as hemoglobin A1c ≥5.7. Physical activity was measured through the International Physical Activity Questionnaire. Bivariate analyses and Poisson models were conducted on the effect of physical activity on abnormal blood glucose, controlling for age, sex, waist to hip ratio, sitting time, age X physical activity interaction, sex X physical activity, and race. RESULTS Abnormal blood glucose was detected in 23.7% of individuals with low activity levels, 14.8% of those with medium activity levels, and 12.2% of those with high activity levels (p<0.003). Similarly, 25.4% of inactive individuals (physically active for <30 minutes per week) were more likely to have abnormal blood glucose levels than active individuals (13.4%, p<0.0001). Higher physical activity was associated with a lower likelihood of abnormal blood glucose in an adjusted Poisson regression. CONCLUSIONS Among healthy weight adults, low physical activity levels are significantly associated with abnormal blood glucose (prediabetes and undiagnosed diabetes). These findings suggest that healthy weight individuals may benefit from physical exercise.
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Affiliation(s)
- Arch G Mainous
- Department of Health Services Research, Management and Policy, University of Florida, Gainesville, Florida; Department of Community Health and Family Medicine, University of Florida, Gainesville, Florida;.
| | - Rebecca J Tanner
- Department of Health Services Research, Management and Policy, University of Florida, Gainesville, Florida
| | - Stephen D Anton
- Department of Aging and Geriatric Research, University of Florida, Gainesville, Florida
| | - Ara Jo
- Department of Health Services Research, Management and Policy, University of Florida, Gainesville, Florida
| | - Maya C Luetke
- Department of Health Services Research, Management and Policy, University of Florida, Gainesville, Florida
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Castro EA, Júdice PB, Silva AM, Teixeira PJ, Benito PJ. Sedentary behavior and compensatory mechanisms in response to different doses of exercise-a randomized controlled trial in overweight and obese adults. Eur J Clin Nutr 2017; 71:1393-1398. [PMID: 28561039 DOI: 10.1038/ejcn.2017.84] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 03/21/2017] [Accepted: 04/18/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND/OBJECTIVES To examine compensatory changes in sedentary behavior (SB) and light-intensity physical activities (LIPA) in response to a 22-week exercise training program in overweight/obese adults; and to determine if different forms of exercise training and physical activity recommendations interact with these compensatory changes. SUBJECTS/METHODS Eighty-nine overweight and obese individuals (body mass index (BMI): 25-34.9 kg/m2, 48% males), aged 18-50 years, were randomized into four intervention groups (strength, endurance, combined strength + endurance and physical activity recommendations) with a 25-30% caloric restriction of total daily energy expenditure for 22 weeks. Energy expenditure was measured by accelerometry before, during and after the program. RESULTS LIPA increased significantly (P<0.001) after three months and at the end of intervention compared to baseline (pre: 281±9 min; 3 months: 303±9 min; post: 312±8 min). SB percentage decreased by 5.3 at the end of the intervention (P=0.002). No interactions were observed between groups or sexes. Significant correlations were found between SB and body weight, fat mass, android fat mass and lean body mass before and after the intervention (P<0.05). LIPA was also significantly correlated with all these body composition variables in the pre-intervention, but only correlated with body weight at the end of intervention. CONCLUSIONS There were no compensatory changes after a combined exercise and diet program; where minutes in LIPA increased and %SB decreased after the program, without differences among exercise modes. Greater physical activity levels can contribute to a better percentage and distribution of body tissues.
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Affiliation(s)
- E A Castro
- LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Sciences, Universidad Politécnica de Madrid, Madrid, Spain
| | - P B Júdice
- Exercise and Health Laboratory, CIPER, Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal
| | - A M Silva
- Exercise and Health Laboratory, CIPER, Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal
| | - P J Teixeira
- Exercise and Health Laboratory, CIPER, Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal
| | - P J Benito
- LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Sciences, Universidad Politécnica de Madrid, Madrid, Spain
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Biomarkers associated with sedentary behaviour in older adults: A systematic review. Ageing Res Rev 2017; 35:87-111. [PMID: 28025174 DOI: 10.1016/j.arr.2016.12.002] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/30/2016] [Accepted: 12/12/2016] [Indexed: 01/13/2023]
Abstract
OBJECTIVE Pathomechanisms of sedentary behaviour (SB) are unclear. We conducted a systematic review to investigate the associations between SB and various biomarkers in older adults. METHODS Electronic databases were searched (MEDLINE, EMBASE, CINAHL, AMED) up to July 2015 to identify studies with objective or subjective measures of SB, sample size ≥50, mean age ≥60years and accelerometer wear time ≥3days. Methodological quality was appraised with the CASP tool. The protocol was pre-specified (PROSPERO CRD42015023731). RESULTS 12701 abstracts were retrieved, 275 full text articles further explored, from which 249 were excluded. In the final sample (26 articles) a total of 63 biomarkers were detected. Most investigated markers were: body mass index (BMI, n=15), waist circumference (WC, n=15), blood pressure (n=11), triglycerides (n=12) and high density lipoprotein (HDL, n=15). Some inflammation markers were identified such as interleukin-6, C-reactive protein or tumor necrosis factor alpha. There was a lack of renal, muscle or bone biomarkers. Randomized controlled trials found a positive correlation for SB with BMI, neck circumference, fat mass, HbA1C, cholesterol and insulin levels, cohort studies additionally for WC, leptin, C-peptide, ApoA1 and Low density lipoprotein and a negative correlation for HDL. CONCLUSION Most studied biomarkers associated with SB were of cardiovascular or metabolic origin. There is a suggestion of a negative impact of SB on biomarkers but still a paucity of high quality investigations exist. Longitudinal studies with objectively measured SB are needed to further elucidate the pathophysiological pathways and possible associations of unexplored biomarkers.
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Turi BC, Bonfim MR, Codogno JS, Fernandes RA, Araújo LGMD, Amaral SLD, Monteiro HL. EXERCISE, BLOOD PRESSURE AND MORTALITY: FINDINGS OF EIGHT YEARS OF FOLLOW-UP. REV BRAS MED ESPORTE 2017. [DOI: 10.1590/1517-869220172302158989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT Introduction: In the last decades, unhealthy habits, such as low levels of physical activity and poor diet, have increased. Consequently, the prevalence of cardiovascular diseases and mortality has increased significantly among adults. However, it is known that regular physical exercises help to improve health outcomes. Thus, the aim of this study was to analyze the effects of eight years of regular participation in an exercise program on blood pressure and mortality in the Brazilian public health system. Methods: The sample consisted of 34 participants with hypertension and/or type II diabetes who were followed up for eight years. They were paired by age, body mass index and chronic disease in two groups: exercise and control. During the follow-up period, medical records were used to assess systolic and diastolic blood pressure, as well as number of medical appointments and the occurrence of deaths. Results: In the follow-up period, five participants died in the control group and none in the exercise group. The Kaplan-Meier analysis identified 29.4% lower mortality among active participants (Fisher's exact test with p = 0.044). The number of medical appointments and the values of diastolic blood pressure were significantly lower for active participants. Conclusion: After a follow-up of eight years, participants in the exercise group attended fewer medical appointments, had better blood pressure control and a lower occurrence of deaths.
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Whitaker KM, Pereira MA, Jacobs DR, Sidney S, Odegaard AO. Sedentary Behavior, Physical Activity, and Abdominal Adipose Tissue Deposition. Med Sci Sports Exerc 2017; 49:450-458. [PMID: 27749387 PMCID: PMC5315590 DOI: 10.1249/mss.0000000000001112] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE We examined whether sedentary lifestyle habits and physical activity level are associated with abdominal visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT), intermuscular adipose tissue (IMAT), and liver attenuation, independently of one another and potential confounders. METHODS This study analyzed 3010 African American and Caucasian men and women, 42-59 yr old, from the Coronary Artery Risk Development in Young Adults (CARDIA) study, who completed multiple-slice abdominal computed tomography in 2010-2011. Participants reported average hours per day sitting (television, computing, paperwork, music, telephone, and car). Physical activity was assessed with the CARDIA physical activity history. VAT, SAT, IMAT, and liver attenuation were estimated from computed tomography. Multivariable general linear regression models regressed means of fat depots on total sedentary time, task-specific sedentary time, and total physical activity. RESULTS Television viewing was positively, and physical activity inversely, associated with fat depots. For each 1 SD increment in television viewing (1.5 h·d), VAT, SAT, and IMAT were greater by 3.5, 3.4, and 3.9 cm, respectively (P < 0.03 for all). For each 1 SD increment in physical activity (275 exercise units), VAT, SAT, and IMAT were lower by 7.6, 6.7, and 8.1 cm, respectively, and liver attenuation was greater (indicating more liver fat) by 0.5 Hounsfield units (P < 0.01 for all). Total sedentary time was associated with VAT, IMAT, and liver attenuation in White men only after controlling for physical activity, SAT, and other potential confounders (P ≤ 0.01 for all). No other task-specific sedentary behaviors were associated with fat depots. CONCLUSIONS Sedentary behaviors, particularly television viewing, and physical activity levels have distinct, independent associations with fat deposition.
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Affiliation(s)
- Kara M Whitaker
- 1Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN; 2Division of Research, Kaiser Permanente Northern California, Oakland, CA; and 3Department of Epidemiology, School of Medicine, University of California, Irvine, CA
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Associations between physical activity and BMI, body fatness, and visceral adiposity in overweight or obese Latino and non-Latino adults. Int J Obes (Lond) 2017; 41:873-877. [PMID: 28220040 PMCID: PMC5461184 DOI: 10.1038/ijo.2017.49] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 02/01/2017] [Accepted: 02/10/2017] [Indexed: 01/11/2023]
Abstract
Background/Objectives Although several studies have reported associations between moderate to vigorous physical activity (MVPA), body fatness, and visceral adipose tissue (VAT), the extent to which associations differ among Latinos and non-Latinos remains unclear. The present study evaluated the associations between body composition and MVPA in Latino and non-Latino adults. Subjects/Methods An exploratory, cross-sectional analysis was conducted using baseline data collected from 298 overweight adults enrolled in a 12-month randomized controlled trial that tested the efficacy of text messaging to improve weight loss. MVPA, body fatness and VAT were assessed by waist-worn accelerometry, DXA, and DXA-derived software (GE CoreScan GE, Madison, WI) respectively. Participants with less than 5 days of accelerometry data or missing DXA data were excluded; 236 participants had complete data. Multivariable linear regression assessed associations between body composition and MVPA per day, defined as time in MVPA, bouts of MVPA (time per bout ≥10 min), non-bouts of MVPA (time per bout <10 min), and meeting the 150-minute MVPA guideline. The modifying influence of ethnicity was modeled with a multiplicative interaction term. Results The interaction between ethnicity and MVPA in predicting percent body fat was significant (p = 0.01, 95% CI [0.58, 4.43]) such that a given increase in MVPA was associated with a greater decline in total body fat in non-Latinos compared to Latinos (adjusted for age, sex and accelerometer wear time). There was no interaction between ethnicity and MVPA in predicting VAT (g) (p = 0.78, 95% CI [−205.74, 273.17]) and BMI (p = 0.18, 95% CI [−0.49, 2.26]). Conclusions An increase in MVPA was associated with a larger decrease in body fat, but neither BMI nor VAT, in non-Latinos compared to Latinos. This suggests that changes in VAT and BMI in response to MVPA may be less influenced by ethnicity than is total body fatness.
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Shibata AI, Oka K, Sugiyama T, Salmon JO, Dunstan DW, Owen N. Physical Activity, Television Viewing Time, and 12-Year Changes in Waist Circumference. Med Sci Sports Exerc 2016; 48:633-40. [PMID: 26501231 PMCID: PMC5638424 DOI: 10.1249/mss.0000000000000803] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Purpose Both moderate-to-vigorous physical activity (MVPA) and sedentary behavior can be associated with adult adiposity. Much of the relevant evidence is from cross-sectional studies or from prospective studies with relevant exposure measures at a single time point before weight gain or incident obesity. This study examined whether changes in MVPA and television (TV) viewing time are associated with subsequent changes in waist circumference, using data from three separate observation points in a large population-based prospective study of Australian adults. Methods Data were obtained from the Australian Diabetes, Obesity, and Lifestyle study collected in 1999–2000 (baseline), 2004–2005 (wave 2), and 2011–2012 (wave 3). The study sample consisted of adults age 25 to 74 yr at baseline who also attended site measurement at three time points (n = 3261). Multilevel linear regression analysis examined associations of initial 5-yr changes in MVPA and TV viewing time (from baseline to wave 2) with 12-yr change in waist circumference (from baseline to wave 3), adjusting for well-known confounders. Results As categorical predictors, increases in MVPA significantly attenuated increases in waist circumference (P for trend < 0.001). TV viewing time change was not significantly associated with changes in waist circumference (P for trend = 0.06). Combined categories of MVPA and TV viewing time changes were predictive of waist circumference increases; compared with those who increased MVPA and reduced TV viewing time, those who reduced MVPA and increased TV viewing time had a 2-cm greater increase in waist circumference (P = 0.001). Conclusion Decreasing MVPA emerged as a significant predictor of increases in waist circumference. Increasing TV viewing time was also influential, but its impact was much weaker than MVPA.
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Affiliation(s)
- A I Shibata
- 1Physical Activity and Behavioural Epidemiology Laboratories, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, AUSTRALIA; 2Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, JAPAN; 3Faculty of Sport Sciences, Waseda University, Saitama, JAPAN; 4School of Design, Swinburne University of Technology, Melbourne, Victoria, AUSTRALIA; 5School of Population Health, University of South Australia, Adelaide, AUSTRALIA; 6Centre for Physical Activity and Nutrition Research, Deakin University, Melbourne, Victoria, AUSTRALIA; 7School of Sports Science, Exercise and Health, the University of Western Australia, Perth, AUSTRALIA; 8School of Population Health, the University of Queensland, Brisbane, QLD, AUSTRALIA; 9School of Exercise and Nutrition Sciences, Deakin University, Melbourne, Victoria, AUSTRALIA; 10School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, AUSTRALIA; 11School of Population and Global Health, Melbourne University, Melbourne, Victoria, AUSTRALIA; and 12Department of Medicine, Monash University, Melbourne, Victoria, AUSTRALIA
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Harrington DM, Edwardson CL, Henson J, Khunti K, Yates T, Davies MJ. Moderate to vigorous physical activity, not sedentary time, is associated with total and regional adiposity in a sample of UK adults at risk of type 2 diabetes. Physiol Meas 2016; 37:1862-1871. [PMID: 27654326 DOI: 10.1088/0967-3334/37/10/1862] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
How sedentary time (ST) relates to total and regional adiposity and whether these associations are independent of moderate- to vigorous-intensity physical activity (MVPA) are of clinical and public health interest. We assessed the relationship between objectively measured MVPA, ST and ST breaks in adults at risk of type 2 diabetes. The sample consisted of 163 adults (37-75 years) recruited from primary care. Dual energy x-ray absorptiometry (iDXA, GE Corp) was used to estimate total and regional (appendages and trunk) fat mass as well as fat mass in the abdominal (android) and hip/thigh (gynoid) regions. The Actigraph GT3X was worn for 7 days (participants with ⩾4 valid days included herein) and published cut-points were applied to 15 s epoch data to estimate mean MVPA, ST and breaks in ST. Multiple regression investigated associations between both ST and MVPA with total and regional adiposity without and with adjustment for known and potential confounders (including total lean mass) and for each other. MVPA was negatively and significantly associated with total (b = -62; p = 0.002), and regional (p < 0.05) adiposity before and after adjusting for confounders including ST. Although ST was positively and significantly associated with total (b = 46.4; p = 0.002) and regional adiposity (all p ⩽ 0.007), these relationships disappeared after adjustment for MVPA (p > 0.05). Sedentary breaks were not significantly related to adiposity before or after adjustment. An age-by-MVPA interaction for total, android, gynoid and trunk fat revealed that MVPA did not remain significant when controlling for ST and other covariates in the adults over 65 years old. In this sample of adults at risk of type 2 diabetes, MVPA, and not ST, was associated with total and regional adiposity after adjustment for each other. However, in older adults at risk of T2D weight related benefits may be gained from reducing daily ST and increasing MVPA.
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Affiliation(s)
- D M Harrington
- Diabetes Research Centre, University of Leicester, Leicester, UK. NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, Leicester, UK
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Howard B, Winkler EAH, Sethi P, Carson V, Ridgers ND, Salmon JO, Healy GN, Owen N, Dunstan DW. Associations of Low- and High-Intensity Light Activity with Cardiometabolic Biomarkers. Med Sci Sports Exerc 2016; 47:2093-101. [PMID: 25668400 DOI: 10.1249/mss.0000000000000631] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE Light-intensity physical activity (LIPA) accounts for much of adults' waking hours (≈40%) and substantially contributes to overall daily energy expenditure. Encompassing activity behaviors of low intensity (standing with little movement) to those of higher intensity (slow walking), LIPA is ubiquitous, yet little is known about how associations with health may vary depending on its intensity. We examined the associations of objectively assessed LIPA (categorized as either low LIPA [LLPA] or high LIPA [HLPA]) and moderate- to vigorous-intensity activity with cardiometabolic risk biomarkers. METHODS Cardiometabolic biomarkers were measured in 4614 US adults (47 ± 17 yr) who participated in the 2003-2004 and 2005-2006 National Health and Nutrition Examination Survey cycles. Multiple linear regression analyses examined the associations of three accelerometer-derived physical activity (SD increment per day) intensity categories (LLPA, 100-761 counts per minute; HLPA, 762-1951 counts per minute; moderate-intensity physical activity [MPA], 1952-5724 counts per minute; vigorous-intensity physical activity [VPA], ≥5725 counts per minute) with cardiometabolic biomarkers, adjusting for potential sociodemographic, behavioral, and medical confounders. RESULTS All intensities of physical activity were beneficially associated with waist circumference, C-reactive protein, triglycerides, fasting insulin, β-cell function, and insulin sensitivity (P < 0.05); only some activity intensities showed significant associations with systolic blood pressure (LLPA), body mass index, HDL cholesterol, fasting glucose, and 2-h plasma glucose (HLPA, MPA, and VPA). Generally, effect size increased with intensity of physical activity. Overall, further adjustment for waist circumference attenuated associations with MPA and VPA to a greater extent than associations with LLPA and HLPA. CONCLUSIONS The cross-sectional findings provide novel evidence for the potential benefits of increasing both LLPA and HLPA. They further reinforce the established importance of moderate- to vigorous-intensity activity, the mainstay of public health recommendations.
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Affiliation(s)
- Bethany Howard
- 1Baker IDI Heart and Diabetes Institute, Melbourne, AUSTRALIA; 2School of Public Health and Preventive Medicine, Monash University, Melbourne, AUSTRALIA; 3Cancer Prevention Research Center, School of Population Health, The University of Queensland, Brisbane, AUSTRALIA; 4Faculty of Physical Education and Recreation, University of Alberta, Edmonton, AB, CANADA; 5Center for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, Melbourne, AUSTRALIA; 6Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, AUSTRALIA; 7Department of Medicine, Alfred Hospital, Monash University, Melbourne, AUSTRALIA; and 8School of Sport Science, Exercise, and Health, University of Western Australia, Perth, AUSTRALIA
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Henson J, Edwardson CL, Morgan B, Horsfield MA, Bodicoat DH, Biddle SJH, Gorely T, Nimmo MA, McCann GP, Khunti K, Davies MJ, Yates T. Associations of Sedentary Time with Fat Distribution in a High-Risk Population. Med Sci Sports Exerc 2016; 47:1727-34. [PMID: 25386715 DOI: 10.1249/mss.0000000000000572] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE The effect of sedentary behavior on regional fat deposition, independent of physical activity, remains equivocal. We examined the cross-sectional associations between objectively measured sedentary time and markers of regional fat distribution (heart, liver, visceral, subcutaneous, and total body fat) in a population at a high risk of type 2 diabetes mellitus (T2DM). METHODS Participants were recruited from primary care to two diabetes prevention programs. Sedentary time (<25 counts per 15 s) was measured using ActiGraph GT3X accelerometers. Heart, liver, visceral, subcutaneous, and total body fat were quantified using magnetic resonance images. Fat volumes were calculated by multiplying the cross-sectional areas of the fat-containing pixels by the slice thickness. The liver fat percentage was measured using a representative region of interest created in the right lobe of the liver, avoiding the main portal veins. Linear regression models examined the association of sedentary time with markers of regional fat deposition. RESULTS Sixty-six participants (age, 47.9 ± 16.2 yr; male, 50.0%) were included. After adjustment for several covariates, including glycemia, whole-body fat, and moderate-to-vigorous physical activity, each 30 min of sedentary time was associated with 15.7 cm higher heart fat (P = 0.008), 1.2% higher liver fat (P = 0.026), and 183.7 cm higher visceral fat (P = 0.039). CONCLUSIONS This study provides new evidence suggesting that objectively measured sedentary behavior may have an independent association with heart, liver, and visceral fat in individuals at a high risk of T2DM.
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Affiliation(s)
- Joseph Henson
- 1National Institute for Health Research Leicester-Loughborough Diet, Lifestyle, and Physical Activity Biomedical Research Unit, and Diabetes Research Centre, College of Medicine, Biological Sciences and Psychology, Leicester, UNITED KINGDOM; 2Department of Cancer Studies and Molecular Medicine, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, UNITED KINGDOM; 3Department of Cardiovascular Sciences, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, UNITED KINGDOM; 4Institute of Sport, Exercise & Active Living, Victoria University, Melbourne, AUSTRALIA; 5School of Sport, University of Stirling, Stirling, UNITED KINGDOM; 6College of Life and Environmental Sciences, University of Birmingham, Birmingham, UNITED KINGDOM; 7Department of Cardiovascular Sciences, University of Leicester and the National Institute for Health Research Leicester Cardiovascular Biomedical Research Unit, Leicester, UNITED KINGDOM; 8National Institute for Health Research Collaborations for Leadership in Applied Health Research and Care East Midlands, and Diabetes Research Centre, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, UNITED KINGDOM
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Myers A, Gibbons C, Finlayson G, Blundell J. Associations among sedentary and active behaviours, body fat and appetite dysregulation: investigating the myth of physical inactivity and obesity. Br J Sports Med 2016; 51:1540-1544. [PMID: 27044438 DOI: 10.1136/bjsports-2015-095640] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2016] [Indexed: 11/03/2022]
Abstract
BACKGROUND There is considerable disagreement about the association between free-living physical activity (PA) and sedentary behaviour and obesity. Moreover studies frequently do not include measures that could mediate between PA and adiposity. The present study used a validated instrument for continuous tracking of sedentary and active behaviours as part of habitual daily living, together with measures of energy expenditure, body composition and appetite dysregulation. This cross-sectional study tested the relationship between inactivity and obesity. METHODS 71 participants (81.7% women) aged 37.4 years (±14) with a body mass index of 29.9 kg/m2 (±5.2) were continuously monitored for 6-7 days to track free-living PA (light 1.5-3 metabolic equivalents (METs), moderate 3-6 METs and vigorous >6 METs) and sedentary behaviour (<1.5 METs) with the SenseWear Armband. Additional measures included body composition, waist circumference, cardiovascular fitness, total and resting energy expenditure, and various health markers. Appetite control was assessed by validated eating behaviour questionnaires. RESULTS Sedentary behaviour (11.06±1.72 h/day) was positively correlated with fat mass (r=0.50, p<0.001) and waist circumference (r=-0.65, p<0.001). Moderate-to-vigorous PA was negatively associated with fat mass (r=-0.72, p<0.001) and remained significantly correlated with adiposity after controlling for sedentary behaviour. Activity energy expenditure was positively associated with the level of PA and negatively associated with fat mass. Disinhibition and binge eating behaviours were positively associated with fat mass (r=0.58 and 0.47, respectively, p<0.001). CONCLUSIONS This study demonstrated clear associations among objective measures of PA (and sedentary behaviour), energy expenditure, adiposity and appetite control. The data indicate strong links between physical inactivity and obesity. This relationship is likely to be bidirectional.
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Affiliation(s)
- Anna Myers
- Faculty of Medicine and Health, Appetite Control and Energy Balance Research, School of Psychology, University of Leeds, Leeds, UK
| | - Catherine Gibbons
- Faculty of Medicine and Health, Appetite Control and Energy Balance Research, School of Psychology, University of Leeds, Leeds, UK
| | - Graham Finlayson
- Faculty of Medicine and Health, Appetite Control and Energy Balance Research, School of Psychology, University of Leeds, Leeds, UK
| | - John Blundell
- Faculty of Medicine and Health, Appetite Control and Energy Balance Research, School of Psychology, University of Leeds, Leeds, UK
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Chastin SFM, Buck C, Freiberger E, Murphy M, Brug J, Cardon G, O'Donoghue G, Pigeot I, Oppert JM. Systematic literature review of determinants of sedentary behaviour in older adults: a DEDIPAC study. Int J Behav Nutr Phys Act 2015; 12:127. [PMID: 26437960 PMCID: PMC4595239 DOI: 10.1186/s12966-015-0292-3] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 09/25/2015] [Indexed: 12/02/2022] Open
Abstract
Background Older adults are the most sedentary segment of society and high sedentary time is associated with poor health and wellbeing outcomes in this population. Identifying determinants of sedentary behaviour is a necessary step to develop interventions to reduce sedentary time. Methods A systematic literature review was conducted to identify factors associated with sedentary behaviour in older adults. Pubmed, Embase, CINAHL, PsycINFO and Web of Science were searched for articles published between 2000 and May 2014. The search strategy was based on four key elements: (a) sedentary behaviour and its synonyms; (b) determinants and its synonyms (e.g. correlates, factors); (c) types of sedentary behaviour (e.g. TV viewing, sitting, gaming) and (d) types of determinants (e.g. environmental, behavioural). Articles were included in the review if specific information about sedentary behaviour in older adults was reported. Studies on samples identified by disease were excluded. Study quality was rated by means of QUALSYST. The full review protocol is available from PROSPERO (PROSPERO 2014: CRD42014009823). The analysis was guided by the socio-ecological model framework. Results Twenty-two original studies were identified out of 4472 returned by the systematic search. These included 19 cross-sectional, 2 longitudinal and 1 qualitative studies, all published after 2011. Half of the studies were European. The study quality was generally high with a median of 82 % (IQR 69–96 %) using Qualsyst tool. Personal factors were the most frequently investigated with consistent positive association for age, negative for retirement, obesity and health status. Only four studies considered environmental determinants suggesting possible association with mode of transport, type of housing, cultural opportunities and neighbourhood safety and availability of places to rest. Only two studies investigated mediating factors. Very limited information was available on contexts and sub-domains of sedentary behaviours. Conclusion Few studies have investigated determinants of sedentary behaviour in older adults and these have to date mostly focussed on personal factors, and qualitative studies were mostly lacking. More longitudinal studies are needed as well as inclusion of a broader range of personal and contextual potential determinants towards a systems-based approach, and future studies should be more informed by qualitative work. Electronic supplementary material The online version of this article (doi:10.1186/s12966-015-0292-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sebastien F M Chastin
- Institute of Applied Health Research, School of Health and Life Science, Glasgow Caledonian University, Glasgow, UK.
| | - Christoph Buck
- Leibniz Institute for Prevention Research and Epidemiology- BIPS, Bremen, Germany.
| | - Ellen Freiberger
- Institute for Biomedicine of Aging Friedrich-Alexander-Universität, Erlangen, Nürnberg, Germany.
| | - Marie Murphy
- Centre for Physical Activity and Health Research, University of Ulster, Newtownabbey, Co. Antrim, Northern Ireland, UK.
| | - Johannes Brug
- Department of Epidemiology and Biostatistics and the EMGO Institute for Health & Care Research, VU Medical Centre, Amsterdam, The Netherlands.
| | - Greet Cardon
- Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium.
| | - Grainne O'Donoghue
- Centre for Preventive Medicine, School of Health & Human Performance, Dublin City University, Dublin, Ireland.
| | - Iris Pigeot
- Leibniz Institute for Prevention Research and Epidemiology- BIPS, Bremen, Germany.
| | - Jean-Michel Oppert
- Institute of Cardiometabolism and Nutrition (ICAN), Centre for Research on Human Nutrition Ile-de-France (CRNH), University Pierre et Marie Curie, Paris, France.
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Júdice PB, Silva AM, Sardinha LB. Sedentary Bout Durations Are Associated with Abdominal Obesity in Older Adults. J Nutr Health Aging 2015; 19:798-804. [PMID: 26412283 DOI: 10.1007/s12603-015-0501-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVES In older adults, sedentary behavior has been positively associated with obesity and impaired metabolic health, additional to low moderate-to-vigorous physical activity (MVPA). Further to the total time spent in sedentary behavior, the manner in which it is accumulated - number of continuous sedentary bouts of different extends - may also be relevant. The association for objectively measured uninterrupted sedentary bouts and respective patterns with abdominal obesity in older adults was examined. DESIGN Cross-sectional. SETTING Community-based older people were recruited in each region of Portugal. Data collection was performed between September, 2007 and May, 2009. PARTICIPANTS 351 older adults (230 women) mean age of 75-years. MEASUREMENTS Sedentary time was measured by an accelerometer (counts/minute <100), worn during waking hours for four consecutive days. Continuous sedentary bouts of 560 length were treated (counts/minute <100). Abdominal obesity was defined by waist circumference (men>102 cm; women>88 cm). RESULTS There were positive and escalating linear associations for the continuum of sedentary bouts' lengths with waist circumference. Logistic regression showed that for each additional sedentary bout of 10< min<20 the odds of being abdominally obese increased by 6.8% (OR=1.07, 95% CI: 1.02 - 1.13) up to 48% (OR=1.48, 95% CI: 1.07 - 2.03) for each 1-hour sedentary bout increment, after controlling for age, gender, total sedentary time, MVPA time, total wear time, movement counts within the sedentary bouts, socio-demographic and other behavioral attributes, and medical history. CONCLUSION These findings indicate positive graded associations for continuous sedentary bouts with abdominal obesity. Public health recommendations regarding breaking up sedentary time more often, potentially avoiding very prolonged bouts of sedentary time, are expected to be relevant for older adults.
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Affiliation(s)
- P B Júdice
- Professor L.B. Sardinha, Exercise and Health Laboratory, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz-Quebrada, Portugal, Estrada da Costa 1499-002 Cruz-Quebrada, Portugal, Phone: (351) 21 414 91 60; Fax: (351) 21 414 91 93;
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The Role of Muscle Mass, Muscle Quality, and Body Composition in Risk for the Metabolic Syndrome and Functional Decline in Older Adults. CURRENT GERIATRICS REPORTS 2015. [DOI: 10.1007/s13670-015-0132-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Larsen BA, Laughlin GA, Saad SD, Barrett-Connor E, Allison MA, Wassel CL. Pericardial fat is associated with all-cause mortality but not incident CVD: the Rancho Bernardo Study. Atherosclerosis 2015; 239:470-5. [PMID: 25702617 PMCID: PMC4364516 DOI: 10.1016/j.atherosclerosis.2015.02.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 11/21/2014] [Accepted: 02/09/2015] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Pericardial and intra-thoracic fat are associated with prevalent cardiovascular disease (CVD) and CVD risk factors. However, it is unclear if these fat depots predict incident CVD events and/or all-cause mortality. We examined prospective associations between areas of pericardial and intra-thoracic fat and incident CVD and mortality over a 12-year follow-up in a subset of participants without baseline clinical CVD from the Rancho Bernardo Study (RBS). METHODS Participants were 343 community-dwelling older adults (mean baseline age = 67) who completed a clinic visit in 2001-02, including a computed tomography scan of the chest. Incident CVD and mortality were recorded through January 2013. RESULTS Over a 12.6-year median follow-up, there were 60 incident CVD events and 49 deaths. Pericardial fat was associated with all-cause mortality, such that each standard deviation increment predicted a 34% higher chance of death after adjusting for demographics, lifestyle factors, comorbidities, and visceral fat (95% CI = 1.01-1.78). When categorized by tertile, those in the middle tertile of pericardial fat showed no increased risk of mortality, while those in the highest tertile had 2.6 times the risk (95% CI = 1.10-5.97) compared to the lowest tertile. There was a marginal association between intra-thoracic fat and mortality (p = 0.06). Neither pericardial nor intra-thoracic fat was significantly associated with incident CVD. There were no significant interactions by sex. CONCLUSIONS Higher pericardial, but not intra-thoracic, fat was associated with earlier all-cause mortality in older adults over a 12-year follow-up. This association was primarily driven by a higher mortality rate in those in the highest tertile of pericardial fat.
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Affiliation(s)
- Britta A Larsen
- Division of Behavioral Medicine, Department of Family and Preventive Medicine, University of California, San Diego, USA.
| | - Gail A Laughlin
- Division of Epidemiology, Department of Family and Preventive Medicine, University of California, San Diego, USA
| | - Sarah D Saad
- Division of Preventive Medicine, Department of Family and Preventive Medicine, University of California, San Diego, USA
| | - Elizabeth Barrett-Connor
- Division of Epidemiology, Department of Family and Preventive Medicine, University of California, San Diego, USA
| | - Matthew A Allison
- Division of Preventive Medicine, Department of Family and Preventive Medicine, University of California, San Diego, USA
| | - Christina L Wassel
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, USA
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Eckert KG, Lange MA. Comparison of physical activity questionnaires for the elderly with the International Classification of Functioning, Disability and Health (ICF)--an analysis of content. BMC Public Health 2015; 15:249. [PMID: 25884355 PMCID: PMC4392753 DOI: 10.1186/s12889-015-1562-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 02/17/2015] [Indexed: 11/10/2022] Open
Abstract
Background Physical activity questionnaires (PAQ) have been extensively used to determine physical activity (PA) levels. Most PAQ are derived from an energy expenditure-based perspective and assess activities with a certain intensity level. Activities with a moderate or vigorous intensity level are predominantly used to determine a person’s PA level in terms of quantity. Studies show that the time spent engaging in moderate and vigorous intensity PA does not appropriately reflect the actual PA behavior of older people because they perform more functional, everyday activities. Those functional activities are more likely to be considered low-intense and represent an important qualitative health-promoting activity. For the elderly, functional, light intensity activities are of special interest but are assessed differently in terms of quantity and quality. The aim was to analyze the content of PAQ for the elderly. Methods N = 18 sufficiently validated PAQ applicable to adults (60+) were included. Each item (N = 414) was linked to the corresponding code of the International Classification of Functioning, Disability and Health (ICF) using established linking rules. Kappa statistics were calculated to determine rater agreement. Results Items were linked to 598 ICF codes and 62 different ICF categories. A total of 43.72% of the codes were for sports-related activities and 14.25% for walking-related activities. Only 9.18% of all codes were related to household tasks. Light intensity, functional activities are emphasized differently and are underrepresented in most cases. Additionally, sedentary activities are underrepresented (5.55%). κ coefficients were acceptable for n = 16 questionnaires (0.48-1.00). Conclusions There is a large inconsistency in the understandings of PA in elderly. Further research should focus (1) on a conceptual understanding of PA in terms of the behavior of the elderly and (2) on developing questionnaires that inquire functional, light intensity PA, as well as sedentary activities more explicitly.
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Affiliation(s)
- Katharina G Eckert
- Institute of Exercise and Public Health, Faculty of Sport Science, University Leipzig, Jahnallee 59, 04109, Leipzig, Germany.
| | - Martin A Lange
- Institute of Exercise and Public Health, Faculty of Sport Science, University Leipzig, Jahnallee 59, 04109, Leipzig, Germany.
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Murabito JM, Pedley A, Massaro JM, Vasan RS, Esliger D, Blease SJ, Hoffman U, Fox CS. Moderate-to-vigorous physical activity with accelerometry is associated with visceral adipose tissue in adults. J Am Heart Assoc 2015; 4:e001379. [PMID: 25736442 PMCID: PMC4392428 DOI: 10.1161/jaha.114.001379] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Background We examined the relation between objectively measured physical activity with accelerometry and subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) in a community‐based sample. Methods and Results We evaluated 1249 participants of the Framingham Third Generation and Omni II cohorts (mean age 51.7 years, 47% women) who underwent assessment of moderate‐to‐vigorous physical activity (MVPA) with accelerometry over 5 to 7 days, and multi‐detector computed tomography for measurement of SAT and VAT volume; fat attenuation was estimated by SAT and VAT hounsfield units (HU). In women, higher levels of MVPA were associated with decreased SAT (P<0.0001) and VAT volume (P<0.0001). The average decrement in VAT per 30 minute/day increase in MVPA was −453 cm3 (95% CI −574, −331). The association was attenuated but persisted upon adjustment for BMI (−122 cm3, P=0.002). Higher levels of MVPA were associated with higher SAT HU (all P≤0.01), a marker of fat quality, even after adjustment for SAT volume. Similar findings were observed in men but the magnitude of the association was less. Sedentary time was not associated with SAT or VAT volume or quality in men or women. Conclusions MVPA was associated with less VAT and SAT and better fat quality.
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Affiliation(s)
- Joanne M Murabito
- Department of Medicine, Section of General Internal Medicine, Section of Preventive Medicine, Boston University School of Medicine, Boston, MA (J.M.M., R.S.V.) National Heart, Lung and Blood Institute's Framingham Heart Study, Framingham, MA (J.M.M., A.P., J.M.M., R.S.V., S.J.B., C.S.F.)
| | - Alison Pedley
- National Heart, Lung and Blood Institute's Framingham Heart Study, Framingham, MA (J.M.M., A.P., J.M.M., R.S.V., S.J.B., C.S.F.)
| | - Joseph M Massaro
- National Heart, Lung and Blood Institute's Framingham Heart Study, Framingham, MA (J.M.M., A.P., J.M.M., R.S.V., S.J.B., C.S.F.) Department of Biostatistics, Boston University School of Public Health, Boston, MA (J.M.M.)
| | - Ramachandran S Vasan
- Department of Medicine, Section of General Internal Medicine, Section of Preventive Medicine, Boston University School of Medicine, Boston, MA (J.M.M., R.S.V.) National Heart, Lung and Blood Institute's Framingham Heart Study, Framingham, MA (J.M.M., A.P., J.M.M., R.S.V., S.J.B., C.S.F.)
| | - Dale Esliger
- School of Sport, Exercise and Health Sciences, Loughborough University, UK (D.E.)
| | - Susan J Blease
- National Heart, Lung and Blood Institute's Framingham Heart Study, Framingham, MA (J.M.M., A.P., J.M.M., R.S.V., S.J.B., C.S.F.)
| | - Udo Hoffman
- Department of Cardiac MR PET CT & Harvard Medical School, Massachusetts General Hospital, Boston, MA (U.H.)
| | - Caroline S Fox
- National Heart, Lung and Blood Institute's Framingham Heart Study, Framingham, MA (J.M.M., A.P., J.M.M., R.S.V., S.J.B., C.S.F.) Division of Intra-mural Research and the Center for Population Studies, National Heart, Lung and Blood Institute, Framingham, MA (C.S.F.) Division of Endocrinology & Harvard Medical School, Brigham and Women's Hospital, Boston, MA (C.S.F.)
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Larsen BA, Allison MA, Laughlin GA, Araneta MRG, Barrett-Connor E, Wooten WJ, Saad SD, Wassel CL. The association between abdominal muscle and type II diabetes across weight categories in diverse post-menopausal women. J Clin Endocrinol Metab 2015; 100:E105-9. [PMID: 25250636 PMCID: PMC4283010 DOI: 10.1210/jc.2014-2839] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
CONTEXT Despite the key role of muscle in glucose regulation, little is known about the association between muscle area and prevalence of metabolic disorders, or the role low muscle may play in normal weight metabolic obesity. OBJECTIVE The objective was to assess the independent associations between both abdominal muscle and fat depositions (measured by computed tomography) and the prevalence of type II diabetes, and to explore the modifying role of weight category. DESIGN We conducted a cross-sectional analysis of the 2001-2002 visit for the Rancho Bernardo Study, Filipino Women's Health Study, and Health Assessment Study of African American Women. SETTING AND PARTICIPANTS Participants were 392 community-dwelling older women (mean age = 64) free of clinical cardiovascular disease. MAIN OUTCOME MEASURE The main outcome was prevalence of type II diabetes, defined as use of anti-diabetes medication, fasting plasma glucose ≥ 126 mg/dL, and/or OGTT ≥ 200 mg/dL. RESULTS Adjusting for demographics, hypertension, estrogen use, lipids, smoking, physical activity, visceral fat area, and height, a greater muscle-to-total abdominal area ratio (MAR) was associated with lower odds of diabetes [OR = 0.63 per standard deviation, 95% CI (0.43-0.92), p = .02]. Higher visceral fat was associated with greater odds of diabetes in fully adjusted models including total muscle area [OR = 1.48, 95% CI (1.09, 2.01), p = .01]. Associations between MAR and diabetes were stronger for normal weight (BMI 18.5-24.9; OR = 0.32) than overweight/obese women (BMI ≥ 25, OR = 0.71, p-for-interaction = 0.046). Associations with visceral fat did not differ by BMI (p-for-interaction = 0.71). CONCLUSIONS In older women, abdominal muscle area is inversely associated with type II diabetes independent of visceral adiposity, particularly for normal weight women.
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Affiliation(s)
- Britta A Larsen
- Department of Family and Preventive Medicine (B.A.L., M.A.A., G.A.L., M.R.G., E.B-C., W.J.W., S.D.S.), University of California, San Diego, La Jolla, California 92093; and Department of Epidemiology (C.L.W.), University of Pittsburgh, Pittsburgh, Pennsylvania 15260
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Pedisic Z, Grunseit A, Ding D, Chau JY, Banks E, Stamatakis E, Jalaludin BB, Bauman AE. High sitting time or obesity: Which came first? Bidirectional association in a longitudinal study of 31,787 Australian adults. Obesity (Silver Spring) 2014; 22:2126-30. [PMID: 24943057 PMCID: PMC4265269 DOI: 10.1002/oby.20817] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 06/01/2014] [Indexed: 12/05/2022]
Abstract
OBJECTIVE Evidence on the direction of the association between sitting time and obesity is limited. The prospective associations between baseline total sitting time and subsequent changes in body mass index (BMI), and baseline BMI and subsequent changes in sitting time were examined. METHODS BMI, from self-reported height and weight, and a single-item measure of sitting time were ascertained at two time points (3.4 ± 0.96 years apart) in a prospective questionnaire-based cohort of 31,787 Australians aged 45-65 years without severe physical limitations. RESULTS In a fully adjusted model, baseline obesity was associated with increased sitting time among all participants (adjusted odds ratio [aOR] = 1.20 [95% CI, 1.11-1.30]; P < 0.001) and in most subgroups. The association was significant among those who were sitting <4 hours/day (aOR = 1.24 [95% CI, 1.07-1.44]; P = 0.004) and 4-8 hours/day at baseline (aOR=1.18 [95% CI, 1.06-1.32]; P = 0.003), but not in the high sitting groups (P = 0.111 and 0.188 for 8-11 and ≥11 sitting hours/day, respectively). Nonsignificant and inconsistent results were observed for the association between baseline sitting time and subsequent change in BMI. CONCLUSIONS Our findings support the hypothesis that obesity may lead to a subsequent increase in total sitting time, but the association in the other direction is unclear.
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Affiliation(s)
- Zeljko Pedisic
- Prevention Research Collaboration, Sydney School of Public Health, The University of SydneySydney, Australia
- Faculty of Kinesiology, University of ZagrebZagreb, Croatia
| | - Anne Grunseit
- Prevention Research Collaboration, Sydney School of Public Health, The University of SydneySydney, Australia
| | - Ding Ding
- Prevention Research Collaboration, Sydney School of Public Health, The University of SydneySydney, Australia
| | - Josephine Y Chau
- Prevention Research Collaboration, Sydney School of Public Health, The University of SydneySydney, Australia
| | - Emily Banks
- National Centre for Epidemiology and Population Health, Australian National UniversityCanberra, Australia
- The Sax InstituteSydney, Australia
| | - Emmanuel Stamatakis
- Prevention Research Collaboration, Sydney School of Public Health, The University of SydneySydney, Australia
- Exercise Health and Performance Faculty Research Group, Faculty of Health Sciences, University of SydneyAustralia
- Charles Perkins Centre, University of SydneyAustralia
- Physical Activity Research Group (PARG), Department of Epidemiology and Public Health, Population Health Division, University College LondonLondon, UK
| | - Bin B Jalaludin
- School of Public Health and Community Medicine, The University of New South WalesSydney, Australia
| | - Adrian E Bauman
- Prevention Research Collaboration, Sydney School of Public Health, The University of SydneySydney, Australia
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41
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Júdice PB, Silva AM, Magalhães JP, Matias CN, Sardinha LB. Sedentary behaviour and adiposity in elite athletes. J Sports Sci 2014; 32:1760-7. [PMID: 24915288 DOI: 10.1080/02640414.2014.926382] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Smith L, Thomas EL, Bell JD, Hamer M. The association between objectively measured sitting and standing with body composition: a pilot study using MRI. BMJ Open 2014; 4:e005476. [PMID: 24916091 PMCID: PMC4067859 DOI: 10.1136/bmjopen-2014-005476] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 05/23/2014] [Accepted: 05/27/2014] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE To investigate the association between objectively measured sitting and standing, using a postural allocation technique, with MRI-assessed body composition. DESIGN The present study was a cross-sectional pilot study. SETTING Participants were examined at one centre located in London, UK. PARTICIPANTS Normal weight Caucasian women (30.9±6.1 years; body mass index (BMI), 22.9±3.4 kg/m(2)) with desk-bound occupations were recruited to minimise variability in body composition outcomes. A convenience sample of 12 women was recruited in January 2014 from University College London. OUTCOME MEASURES For each participant a number of body composition variables were attained from a single whole-body MRI session. Main outcome variables included: total and liver adiposity, visceral/subcutaneous fat ratio and BMI. Main exposure variables included: average sitting time, standing:sitting ratio and step count. Pearson correlations were carried out to examine associations between different activity categories and body composition variables. RESULTS There were significant correlations between average daily sitting and liver adiposity and visceral/subcutaneous abdominal fat ratio (r=0.66 and 0.64, respectively); standing:sitting ratio was moderately correlated with liver adiposity and visceral/subcutaneous abdominal fat ratio (r=-0.53 and -0.45); average daily step count was moderately correlated with liver adiposity, total adiposity and visceral/subcutaneous abdominal fat ratio (r=-0.45, -0.46 and -0.51, respectively). CONCLUSIONS This pilot study has provided preliminary evidence of relationships between objectively measured sitting and standing and precise measures of body composition.
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Affiliation(s)
- L Smith
- Department of Epidemiology and Public Health, University College London, London, UK
| | - E L Thomas
- Metabolic and Molecular Imaging Group, MRC Clinical Sciences Centre, Imperial College London, London, UK
| | - J D Bell
- Metabolic and Molecular Imaging Group, MRC Clinical Sciences Centre, Imperial College London, London, UK
| | - M Hamer
- Department of Epidemiology and Public Health, University College London, London, UK
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Kim S, Kim JY, Lee DC, Lee HS, Lee JW, Jeon JY. Distribution of abdominal obesity and fitness level in overweight and obese korean adults. Int J Endocrinol 2014; 2014:854392. [PMID: 24723950 PMCID: PMC3958687 DOI: 10.1155/2014/854392] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 11/01/2013] [Accepted: 12/27/2013] [Indexed: 12/15/2022] Open
Abstract
Background. Abdominal obesity and its relative distribution are known to differ in association with metabolic characteristics and cardiorespiratory fitness. This study aimed to determine an association between fitness level and abdominal adiposity in overweight and obese adults. Methods. 228 overweight and obese individuals were classified as either cardiorespiratory unfit or fit based on their recovery heart rate. Visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT), the visceral-to-subcutaneous adipose tissue ratio (VAT/SAT ratio), and cardiometabolic characteristics were analyzed to examine the relationship between recovery heart rate and abdominal adiposity components. Results. After adjustments for age and sex, significant relationships of recovery heart rate and VAT, SAT, and VAT/SAT ratio were found; however, SAT was not significantly associated after further adjustment for body mass index (BMI) (r = 0.045, P = 0.499), whereas VAT (r = 0.232, P < 0.001) and VAT/SAT ratio (r = 0.214, P = 0.001) remained associated. Through stepwise multiple regression analyses after adjustment for age, sex, BMI, lifestyle factors, mean blood pressure, fasting glucose, HOMA-IR, lipid profiles, and hsCRP, recovery heart rate was identified as an independent variable associated with VAT (β = 0.204, P < 0.001) and VAT/SAT ratio (β = 0.163, P = 0.008) but not with SAT (β = 0.097, P = 0.111). Conclusions. Cardiorespiratory fitness level is independently associated with VAT and the VAT/SAT ratio but not with SAT in overweight and obese adults.
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Affiliation(s)
- Sue Kim
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Ji-Young Kim
- Department of Sport and Leisure Studies, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Duk-Chul Lee
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Hye-Sun Lee
- Biostatistics Collaboration Units, Department of Research Affairs, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Ji-Won Lee
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul 120-752, Republic of Korea
- *Ji-Won Lee: and
| | - Justin Y. Jeon
- Department of Sport and Leisure Studies, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
- *Justin Y. Jeon:
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