[Effect of negative pressure on the lower half of the body (the Chibis suit) and of local negative pressure on central circulation in the healthy human].
Catheters were chronically implanted into pulmonary and radial arteries of 8 healthy volunteers to examine the effect of lower body negative pressure (LBNP in the Chibis suit) and local negative pressure on the leg on central circulation, oxidative metabolism and acid-base equilibrium in the blood. In 1-hour head-down tests (at -20 degrees) the effect of two regimens of LBNP (at -30 and -60 mm Hg) and local negative pressure (at -50 and -100 mm Hg) was studied, each exposure averaging 15-20 min. Both LBNP and local negative pressure induced changes in central circulation that were similar qualitatively and dissimilar quantitatively. The use of regimen I of both exposures caused more marked changes than that of regimen II.
D000136:Acid-Base Equilibrium; D000328:Adult; D001775:Blood Circulation; D003664:Decompression; D006801:Humans; D008150:Lower Body Negative Pressure; D008297:Male; D010100:Oxygen / Q000097:blood; D011187:Posture; D011481:Protective Clothing; D013997:Time Factors; D014680:Veins
D010100:Oxygen
Vliianie otritsatel'nogo davleniia na nizhniuiu polovinu tela (kostium "Chibis") i lokal'nogo otritsatel'nogo davleniia na tsentral'noe krovoobrashchenie zdorovogo cheloveka.