Abstract: We describe physical activity trajectories during secondary school and examine the association with change in adiposity in youth aged 12-13 years at baseline. Physical activity was measured in 20 survey-cycles ...

Abstract: Objective: (a) Examine longitudinal measurement invariance of scores from psychological need satisfaction (PNS) scales and (b) examine if changes in PNS were associated with change in moderate-to-vigorous physical ...

Abstract: The purpose of this study was to examine the longitudinal and unique association between number of years of team sport and individual sport participation during adolescence and depressive symptoms during early ...