RecruitingClinical trialCommunity Park-Based Programs for Health Promotion: Fit2Play Prospective Cohort StudyThe Fit2Play prospective cohort study examines the effects of a park-based youth physical activity afterschool program on youth participant fitness and mental health outcomes. Duke will perform a secondary analysis of the data collected as part of the Fit2Play prospective cohort study run by Miami-Dade County Parks and Recreation.