[On physical stress in the adolescent. Heart volume and physical efficiency in adolescents after long periods of physical training].
D000293:Adolescent; D006328:Cardiac Catheterization; D002306:Cardiac Volume; D004562:Electrocardiography; D006334:Heart Function Tests; D006801:Humans; D010806:Physical Education and Training; D005082:Physical Exertion; D013178:Sports Medicine
ADOLESCENCE; ELECTROCARDIOGRAPHY; EXERTION; HEART CATHETERIZATION; HEART FUNCTION TESTS; PHYSICAL EDUCATION AND TRAINING; SPORT MEDICINE