Physical conditioning of the immature athlete.
D000293:Adolescent; D001265:Athletic Injuries / Q000517:prevention & control; D006321:Heart / Q000502:physiology; D006801:Humans; D010806:Physical Education and Training / Q000379:methods*; D010807:Physical Endurance; D010809:Physical Fitness; D012119:Respiration; D013178:Sports Medicine; D014891:Weight Lifting