A study on the counteracting effect of hypoxia and Qigong on simulated weightlessness and orthostatic tolerance after bedrest

Author: Zhang J//Wang C//Xie J//Zhang B//Yan X//Shan Y
Institute of Space Medico-Engineering, Beijing, China.
Conference/Journal: Space Med Med Eng China
Date published: 1997
Other: Volume ID: 10 , Issue ID: 1 , Pages: 18-22 , Special Notes: [Article in Chinese] , Word Count: 163

-6 degrees head down bed rest (-6 degrees HDBR) 21d were used to simulate weightlessness. 15 healthy males, aged 19-22, were divided into 3 groups with 5 people in each group: control group (-6 degrees HDBR), hypoxia group (-6 degrees HDBR + Low Oxygen), Qigong group (-6 degrees HDBR + Qigong). The results
showed that the reduction of weight, perimeter of shank, daily average cardic output, basal cardic output and the pulse pressure of the Qigong group were lower than those of the control group (P<0.05). The basal cardic output and the
perimeter of shank of the Hypoxia group reduced significantly than those of the control group (P<0.05). However, the reduction of the other physiological functions of the Hypoxia group were not significantly lower than that of the
control group (P>0.05). During HUT +75 degrees 20 min orthostatic tolerance test after HDBR, the parameters in the Hypoxia group were better than those in the other groups. The average standing time was also longer, and no presyncopal
symptom occured.