[Rheographic indicators of blood circulation in the brain and limbs during active orthostatic test].

Rheography was used to study brain, leg and forearm circulation in 30 male test subjects during tilt tests. In the head-up position blood circulation in the above body parts decreased due to a reduction of stroke volume. The orthostatic reaction was considered normal, provided that leg blood content decreased and tone increased, cerebral and forearm blood content and tone varied slightly, and rheographic parameters in the stationary states (lying and standing) remained unchanged.