title: THE Q-FIRST HEART SOUND INTERVAL IN ATHLETES AT REST AND AFTER EXERCISE. (A NEW METHOD OF ESTMATING VENTRICULAR FUNCTIONAL CAPACITY).
mesh_terms: D056352:Athletes; D004562:Electrocardiography; D006334:Heart Function Tests; D006347:Heart Sounds; D006801:Humans; D013178:Sports Medicine
keywords: ELECTROCARDIOGRAPHY; HEART FUNCTION TESTS; SPORT MEDICINE