title: [Physical activity in adolescence].
authors.affiliation: Institute of Health and Sport Sciences, University of Tsukuba.
authors.forename: K
authors.initials: K
authors.lastname: Tanaka
authors.forename: Y
authors.initials: Y
authors.lastname: Nakata
mesh_terms: D000293:Adolescent; D000328:Adult; D015519:Bone Density / Q000502:physiology; D015444:Exercise / Q000502:physiology*; D006801:Humans; D018482:Muscle, Skeletal / Q000502:physiology; D010807:Physical Endurance / Q000502:physiology; D010809:Physical Fitness / Q000502:physiology; D013177:Sports / Q000502:physiology