Studies on the central circulation at rest and during exercise in the supine and sitting body position in old men. Preliminary report.
D000368:Aged; D000369:Aged, 80 and over; D006328:Cardiac Catheterization; D002319:Cardiovascular System; D015444:Exercise; D006801:Humans; D008297:Male; D005082:Physical Exertion; D011187:Posture; D012146:Rest
CARDIOVASCULAR SYSTEM/in old age; EXERTION; HEART CATHETERIZATION; POSTURE