Cross-sectional associations between sleep duration sedentary time physical activity and adiposity indicators among Canadian preschool-aged children using compositional analyses

摘要

BackgroundSleep duration, sedentary behaviour, and physical activity are three co-dependent behaviours that fall on the movementon-movement intensity continuum. Compositional data analyses provide an appropriate method for analyzing the association between co-dependent movement behaviour data and health indicators. The objectives of this study were to examine: (1) the combined associations of the composition of time spent in sleep, sedentary behaviour, light-intensity physical activity (LPA), and moderate- to vigorous-intensity physical activity (MVPA) with adiposity indicators; and (2) the association of the time spent in sleep, sedentary behaviour, LPA, or MVPA with adiposity indicators relative to the time spent in the other behaviours in a representative sample of Canadian preschool-aged children.