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Objectively Assessed Physical Activity and Weight Loss Maintenance among Individuals Enrolled in a Lifestyle Intervention

Journal article
Authors J. L. Unick
S. A. Gaussoin
J. O. Hill
J. M. Jakicic
D. S. Bond
Margareta Hellgren
K. C. Johnson
A. L. Peters
M. Coday
D. W. Kitzman
S. Bossart
R. R. Wing
Published in Obesity
Volume 25
Issue 11
Pages 1903-1909
ISSN 1930-7381
Publication year 2017
Published at Institute of Medicine, School of Public Health and Community Medicine
Pages 1903-1909
Language en
Links doi.org/10.1002/oby.21971
Keywords accelerometry, adult, Article, body weight maintenance, controlled study, diabetes mellitus, female, human, lifestyle modification, long term care, major clinical study, male, middle aged, moderate to vigorous intensity physical activity, outcome assessment, physical activity, treatment duration, weight change, weight control, weight reduction
Subject categories Public health science

Abstract

Objective: To examine the relationship between objectively assessed moderate-to-vigorous intensity physical activity (MVPA) and 4-year weight loss (WL) and WL maintenance among individuals with diabetes enrolled in the Look AHEAD trial. Methods: MVPA was measured in a subgroup of lifestyle intervention participants with accelerometry data at baseline and at 1 and 4 years (n = 553; age: 59.7 ± 6.8 y; BMI: 35.5 ± 5.9 kg/m2). Minutes per week of bout-related MVPA were calculated (≥ 3 metabolic equivalents, ≥ 10-min bouts), and adherence to the national physical activity (PA) recommendation for WL maintenance (≥ 250 min/wk) was assessed. Results: Independent of 1-year WL, 4-year MVPA (β = −0.003, SE = 0.002, P = 0.006), but not 1-year MVPA (β = 0.0001, SE = 0.001, P = 0.50), was significantly associated with 4-year WL. Compared with “nonmaintainers” (≥ 10% WL at year 1, but < 10% at year 4; n = 132), WL maintainers (≥ 10% WL at years 1 and 4; n = 103) had higher MVPA at year 1 (253.4 ± 251.8 vs. 163.9 ± 158.2 min/wk, P = 0.002) and year 4 (155.3 ± 180.6 vs. 111.4 ± 154.5 min/wk, P = 0.046). Although 38.8% and 22.3% of WL maintainers engaged in ≥ 250 min/wk at years 1 and 4, respectively, many engaged in < 150 min/wk (year 1: 41%, year 4: 61%). Conclusions: Higher weekly MVPA is associated with greater long-term WL and weight maintenance; however, many individuals are able to maintain ≥ 10% WL while engaging in little MVPA. © 2017 The Obesity Society

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