[Cardiovascular adjustment to exercise in the aged].
D000328:Adult; D000368:Aged; D006439:Hemodynamics; D006801:Humans; D008297:Male; D009638:Norepinephrine / Q000097:blood; D005082:Physical Exertion; D013564:Sympathetic Nervous System / Q000502:physiology
D009638:Norepinephrine