[Effects of extremity cuffs against physiological changes induced by head-down bedrest].
-6 degrees head down bedrest (HDBR) 10d was used to simulate weightlessness. 12 volunteers were randomed into control group and cuffs group, with 6 in each group. Inflated cuffs on the upper part of thighs and arms were performed 12 h/d in cuffs group during bedrest. No countermeasures were applied in the control group. During head up tilt (HUT) +75 degrees 20 min orthostatic tolerance test after HDBR, 5 in control group became presyncopal, while only one in cuffs group. The study indicates that the use of inflated cuffs provides a protective effect against the cardiovascular deconditioning after bedrest.
Jiang
S
S
Institute of Space Medico-Engineering, Beijing, China.
Jiang
C
C
Li
J
J
Sun
X
X
Wu
X
X
Qiao
Z
Z
D000293:Adolescent; D000328:Adult; D000337:Aerospace Medicine; D001132:Arm / Q000502:physiology; D001510:Bed Rest; D001794:Blood Pressure; D001835:Body Weight; D018493:Cardiovascular Deconditioning / Q000502:physiology; D018475:Head-Down Tilt; D006339:Heart Rate; D006801:Humans; D007024:Hypotension, Orthostatic / Q000517:prevention & control*; D011312:Pressure; D013848:Thigh / Q000502:physiology; D018544:Weightlessness Countermeasures; D018474:Weightlessness Simulation