Sex differences in the variables associated with objectively measured moderate-to-vigorous physical activity in preschoolers

To investigate variables associated with objectively measured moderate-to-vigorous physical activity (MVPA) in German preschool children. Cross-sectional data was collected from 649 three to six year old children (51% boys) in 52 preschools in south Germany between autumn and spring 2008−2009. Sociodemographic, health and socio-cultural variables that could affect children's objectively measured MVPA minutes, averaged over two to four week and...