title: Health maintenance exercise: is it safe for the middle-aged patient?
mesh_terms: D000293:Adolescent; D000328:Adult; D002320:Cardiovascular Physiological Phenomena; D002648:Child; D005080:Exercise Test; D005260:Female; D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010809:Physical Fitness; D012143:Respiratory Physiological Phenomena