BACKGROUND: The relationship between time-use behaviors and prospective weight change is poorly understood. METHODS: A subset of Cancer Prevention Study-3 participants (n = 549, 58% women, 66% non-Latinx white) self-reported weight in 2015 and 2018 and completed an accelerometer protocol for seven days. Sedentary time, sleep, light, moderate, and vigorous intensity physical activity (PA) were treated as a compositional variable and multiple linear regression was used to examine associations between activity composition and weight change stratified by sex and race/ethnicity. Compositional isotemporal substitution analysis was used to quantify change in weight associated with reallocating 30 min./day. RESULTS: Activity composition was associated with weight change among women (p = 0.007), but not men (p = 0.356), and among Latinx (p = 0.032) and white participants (p = 0.001), but not Black participants (p = 0.903). Replacement of 30 min./day sedentary time with moderate-vigorous PA was associated with 3.49 lbs. loss (-6.76, -0.22) in Latinx participants and replacement with sleep was associated with 1.52 (0.25, 2.79) and 1.31 (0.40, 2.21) lbs. gain in white women and men. CONCLUSION: The distribution of time spent in daily behaviors was associated with three-year weight change in women, Latinx, and white participants. This was the first longitudinal compositional study of weight change; thus, more studies are needed.
BACKGROUND: The relationship between time-use behaviors and prospective weight change is poorly understood. METHODS: A subset of Cancer Prevention Study-3 participants (n = 549, 58% women, 66% non-Latinx white) self-reported weight in 2015 and 2018 and completed an accelerometer protocol for seven days. Sedentary time, sleep, light, moderate, and vigorous intensity physical activity (PA) were treated as a compositional variable and multiple linear regression was used to examine associations between activity composition and weight change stratified by sex and race/ethnicity. Compositional isotemporal substitution analysis was used to quantify change in weight associated with reallocating 30 min./day. RESULTS: Activity composition was associated with weight change among women (p = 0.007), but not men (p = 0.356), and among Latinx (p = 0.032) and white participants (p = 0.001), but not Black participants (p = 0.903). Replacement of 30 min./day sedentary time with moderate-vigorous PA was associated with 3.49 lbs. loss (-6.76, -0.22) in Latinx participants and replacement with sleep was associated with 1.52 (0.25, 2.79) and 1.31 (0.40, 2.21) lbs. gain in white women and men. CONCLUSION: The distribution of time spent in daily behaviors was associated with three-year weight change in women, Latinx, and white participants. This was the first longitudinal compositional study of weight change; thus, more studies are needed.
Authors: Erika Rees-Punia; Charles E Matthews; Ellen M Evans; Sarah K Keadle; Rebecca L Anderson; Jennifer L Gay; Michael D Schmidt; Susan M Gapstur; Alpa V Patel Journal: Med Sci Sports Exerc Date: 2019-01 Impact factor: 5.411
Authors: Dorothea Dumuid; Željko Pedišić; Tyman Everleigh Stanford; Josep-Antoni Martín-Fernández; Karel Hron; Carol A Maher; Lucy K Lewis; Timothy Olds Journal: Stat Methods Med Res Date: 2017-11-20 Impact factor: 3.021
Authors: Mark S Tremblay; Valerie Carson; Jean-Philippe Chaput; Sarah Connor Gorber; Thy Dinh; Mary Duggan; Guy Faulkner; Casey E Gray; Reut Gruber; Katherine Janson; Ian Janssen; Peter T Katzmarzyk; Michelle E Kho; Amy E Latimer-Cheung; Claire LeBlanc; Anthony D Okely; Timothy Olds; Russell R Pate; Andrea Phillips; Veronica J Poitras; Sophie Rodenburg; Margaret Sampson; Travis J Saunders; James A Stone; Gareth Stratton; Shelly K Weiss; Lori Zehr Journal: Appl Physiol Nutr Metab Date: 2016-06 Impact factor: 2.665
Authors: John M Jakicic; Kenneth E Powell; Wayne W Campbell; Loretta Dipietro; Russell R Pate; Linda S Pescatello; Katherine A Collins; Bonny Bloodgood; Katrina L Piercy Journal: Med Sci Sports Exerc Date: 2019-06 Impact factor: 5.411
Authors: Stuart J Fairclough; Dorothea Dumuid; Kelly A Mackintosh; Genevieve Stone; Rebecca Dagger; Gareth Stratton; Ian Davies; Lynne M Boddy Journal: Prev Med Rep Date: 2018-07-24