Changes in volume and bouts of physical activity and sedentary time across early childhood: a longitudinal study

Understanding changes in physical activity and sedentary time (SED) during early childhood may provide insights into how to effectively promote a healthy start to life. This study examined changes in total volume and bouts of SED, light- (LPA), and moderate- to vigorous-intensity physical activity (MVPA) across early childhood, and explored differences in change between boys and girls.Data were drawn from 330 children participating in the...