title: Physical activity in adolescents: from associations to interventions.
authors.forename: John R
authors.initials: JR
authors.lastname: Sirard
authors.forename: Daheia J
authors.initials: DJ
authors.lastname: Barr-Anderson
mesh_terms: D000293:Adolescent; D003430:Cross-Sectional Studies; D019317:Evidence-Based Medicine; D015444:Exercise; D005260:Female; D006293:Health Promotion / Q000379:methods*; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009765:Obesity / Q000517:prevention & control; D014481:United States