[Investigation into vegetative regulation of blood circulation during 7-day dry immersion].

The paper presents the results of investigations into vegetative regulation of blood circulation and regulation modification by peroral amlodipine and myostimulation during 7-d dry immersion. It was shown that in immersion vegetative regulation readjusted towards predominance of the sympathetic mechanisms. Myostimulation and peroral amlodipine modified regulation substantially mobilizing high level suprasegmentary structures. It should be noted that amlodipine and myostimulation differ in mechanisms of their action on central regulation. Pharmaceutical intervention seems to have a more complex and varying effect on people including side-effects. Presumably, it was the cause of poor orthostatic tolerance of several test-subjects.