title: Cardiac function during exercise: a study of systolic time intervals during increasing and constant work rate exercise tests.
mesh_terms: D002245:Carbon Dioxide / Q000097:blood; D002302:Cardiac Output; D006321:Heart / Q000502:physiology*; D006334:Heart Function Tests; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D010701:Phonocardiography; D005082:Physical Exertion; D013997:Time Factors; D016276:Ventricular Function
chemical_list: D002245:Carbon Dioxide