[Hemodynamic effects of active standing in middle age and old age subjects].
D000368:Aged; D001794:Blood Pressure; D005260:Female; D006339:Heart Rate; D006439:Hemodynamics; D006801:Humans; D007024:Hypotension, Orthostatic / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011187:Posture; D013318:Stroke Volume