This study examined the associations of sleep, sedentary behavior (SED), light-intensity physical activity (LPA), and moderate-to-vigorous PA (MVPA) with body mass index (BMI) using Compositional Data Analysis (CoDA), comparing a report-based method (24-h Physical Activity Recall; 24PAR) and a monitor-based method (SenseWear Armband; SWA). Using data from 1247 adults, results showed associations between time spent in sleep, SED, and MVPA with BMI using both methods, with stronger associations and greater explained variance observed using the SWA. Replacing SED with MVPA, LPA (not with 24PAR), or sleep was associated with BMI reductions, with larger effects observed using SWA.
Publisher
International Journal of Obesity
Published On
Jul 13, 2020
Authors
Youngwon Kim, Ryan D. Burns, Duck-chul Lee, Gregory J. Welk
Tags
sleep
sedentary behavior
physical activity
body mass index
Compositional Data Analysis
monitor-based method
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