中国空间科学技术

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4小时头低位卧床期间脑阻抗图的变化

沈羡云,向求鲁,孟京瑞   

  1. 航天医学工程研究所,航天医学工程研究所,航天医学工程研究所 北京 ,北京 ,北京
  • 发布日期:1992-04-25

CHANGES OF REG DURING 4h HEAD-DOWN BED-REST

Shen Xianyun Xiang Qiulu Meng Jingrui (Institute of Space Medico-Engineering,Beijing)   

  • Published:1992-04-25

摘要： 为了检查被试者对失重的适应能力,本实验采用了4h 头低位15°卧床方法模拟失重,观察了38名被试者在卧床中的耐受时间和脑阻抗图(REG)的变化,结果是短时间的头低位卧床期间REG 发生了规律性的变化,此变化反映了被试者脑循环系统状态,并与被试者卧床耐力一致。结果提示,短期头低位卧床可作为检查被试者失重适应能力的一种方法,而REG 是一个有用的评定指标。

关键词: 失重模拟, 失重生理效应, 试验

Abstract: In order to examine the adaptive capacity of humanbody for bearing weightlessness (WL),the 4h head-down 15° bed-rest was used to simulate WL.The tolerance time and the changes of REG during bed-rest for 38 subjects were observed.The result is that the regular changes of REG which reflect the state of brain circulation are found during the tes- ting and it associated with the subjects' tolerance time.The results indicated that the method of short time head-down bed-rest is an effective approach to examine the adaptive capacity of subjects for bearing WL and the REG is a valuable index.

Key words: Weightlessness simulation, Weightlessness physiological effect, Test