title: [Development of "chronic overexertion" of the heart in young athletes].
mesh_terms: D000293:Adolescent; D002648:Child; D002908:Chronic Disease; D004562:Electrocardiography; D006321:Heart / Q000503:physiopathology*; D006331:Heart Diseases / Q000145:classification / Q000209:etiology; D006801:Humans; D009460:Neurologic Examination; D005082:Physical Exertion; D010809:Physical Fitness; D011187:Posture; D012146:Rest; D013178:Sports Medicine; D013312:Stress, Physiological / Q000145:classification / Q000209:etiology*
vernacular_title: K probleme razvitiia "khronicheskogo perenapriazheniia" serdtsa u lunykh sportsmenov