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Combined effects of physical activity and sedentary behavior on obesity incidence in the transition from adolescence to adulthood
Author(s) -
Boone Janne E.,
GordonLarsen Penny,
Popkin Barry
Publication year - 2006
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.20.5.a1032-b
Subject(s) - obesity , demography , incidence (geometry) , medicine , screen time , logistic regression , sedentary behavior , odds , longitudinal study , physical activity , odds ratio , sedentary lifestyle , gerontology , physical therapy , pathology , sociology , physics , optics
There is little research on the joint impact of sedentary behavior and physical activity on obesity incidence, despite evidence that these patterns co‐occur and are important obesity determinants. Using nationally representative longitudinal data from waves II (1995; mean age: 16.2) and III (2001; mean age: 21.6) of the National Longitudinal Study of Adolescent Health (n=9,969), this study examined whether high levels of moderate‐vigorous physical activity (MVPA≥5 bouts/week versus <5 bouts/week) are protective against obesity incidence among those with high screen time (TV/video viewing ≥15 hours/week versus <15 hours/week). Multivariate logistic regression analysis stratified by sex assessed the odds of obesity prevalence and incidence across joint patterns of MVPA and screen time, controlling for age, income, educational attainment, and change in MVPA and screen time from wave II to III. During adolescence high MVPA was protective of obesity at both at low screen time (Males: OR= 0.49; CI: 0.37–0.64; Females: OR= 0.43; CI: 0.30–0.60) and high screen time (Males: OR=0.64; CI: 0.50–0.82; Females: OR=0.64; CI: 0.46–0.90). Low screen time during adolescence was protective of incident obesity in adulthood for low (OR=0.74; CI: 0.59–0.95) and high (OR=0.62; CI: 0.44–0.86) MVPA only among females. During adolescence, high MVPA protects against obesity in both sexes, regardless of screen time. However, only females with low screen time had reduced odds of obesity incidence in early adulthood.