Heart rate and rhythm during underwater swimming.
D000328:Adult; D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D001919:Bradycardia / Q000209:etiology*; D004242:Diving; D004562:Electrocardiography; D005260:Female; D006339:Heart Rate; D006801:Humans; D007101:Immersion; D008297:Male; D013550:Swimming; D014474:Unconsciousness / Q000503:physiopathology