THE RELATION OF HEART RATE TO EXERCISE FITNESS: AN ATTEMPT AT PHYSIOLOGICAL INTERPRETATION OF THE BRADYCARDIA OF TRAINING.
D001919:Bradycardia; D015444:Exercise; D005080:Exercise Test; D006334:Heart Function Tests; D006339:Heart Rate; D006801:Humans; D010806:Physical Education and Training; D005082:Physical Exertion; D010809:Physical Fitness
BRADYCARDIA; EXERCISE TEST; EXERTION; HEART FUNCTION TESTS; PHYSICAL EDUCATION AND TRAINING; PHYSICAL FITNESS