William W. Lewis-de los Angeles

Bidirectional Associations Between Physical Activity and Internalizing Symptoms in Early Adolescence: A Four-Wave Cross-Lagged Panel Model with Random Intercepts.

BackgroundRates of mental illness in adolescents are increasing at an alarming rate. At the same time, youth participation in physical activity is continually declining. International public health guidelines recommend that children spend at least 60 min/day in moderate-to-vigorous physical activity for optimal develop...