title: The rhythm of the heart in active elderly subjects.
mesh_terms: D000368:Aged; D000375:Aging; D000553:Ambulatory Care; D001145:Arrhythmias, Cardiac / Q000175:diagnosis; D001281:Atrial Fibrillation / Q000175:diagnosis; D001919:Bradycardia / Q000175:diagnosis; D004562:Electrocardiography; D005260:Female; D006339:Heart Rate; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male