This study examined the influence of physical activity on the trajectory of depression from
adolescence through emerging adulthood (EA). Using data from the National Longitudinal
Study of Adolescent Health (Waves I to IV), latent growth curve modeling was performed
to assess how physical activity and gender influenced depression across adolescence and
EA. Higher levels of physical activity in mid-adolescence were associated with lower levels
of depression during mid-adolescence and slower inclines and declines in depression over
time. Boys had lower levels of depression in mid-adolescence and slower inclines and
declines in depression over time compared to girls. Findings provide evidence that current
theories on understanding depression and mental health prevention programs may be
enhanced by the inclusion of physical activity.
© 2015 The Foundation for Professionals in Services for Adolescents. Published by Elsevier