模拟失重条件下人体出汗变化规律的实验研究
发布时间：2019-02-13 08:26
【摘要】：针对失重条件下人体出汗所发生的变化,采用航天医学领域的-6°头低位卧床(HDBR)实验与常规热舒适实验相结合的方法,在12种空气温湿度下对6名男性受试者进行不同部位皮肤微电流的实验测量,将皮肤微电流作为人体出汗的指示信号.研究结果表明:HDBR模拟失重时,空气相对湿度较低的条件下(RH=30%)人体皮肤出汗比HDBR卧床前需要更高的空气温度刺激,并且出汗率相比卧床前出现一定程度的降低;中等湿度(45%)条件下,模拟失重时的皮肤出汗率随着空气温度增高而增加,但是显著低于HDBR卧床前的水平;高湿条件(80%)下且环境温度高于29℃时,模拟失重时人体皮肤出汗率显著增高,其值低于HDBR卧床前的水平但与其差值逐渐减小.此外,在实验环境下所有受试者的皮肤出汗敏感度降低,并且大腿、小腿、上臂皮肤出汗率显著低于额头、胸和背部皮肤处的出汗率.研究证明,模拟失重条件下人体皮肤出汗与正常重力时存在不同的变化,研究结果可为载人航天时人体热环境的改善提供依据.
[Abstract]:In view of the changes of human body sweating under weightlessness, the method of combining-6 掳head-low bed rest (HDBR) experiment with routine thermal comfort test in aerospace medical field is adopted. Skin microcurrents were measured in 6 male subjects under 12 different air temperature and humidity. The skin microcurrents were used as the indication signal of human sweating. The results showed that under the condition of low air relative humidity (RH=30%), HDBR simulated weightlessness, the sweating rate of human skin (RH=30%) needed higher air temperature stimulation than that of HDBR before bed rest, and the sweating rate was lower than that before bed rest. Under the condition of moderate humidity (45%), the skin sweating rate of simulated weightlessness increased with the increase of air temperature, but was significantly lower than that of HDBR before bed rest. Under the condition of high humidity (80%) and ambient temperature higher than 29 鈩，
本文编号：2421360
[Abstract]:In view of the changes of human body sweating under weightlessness, the method of combining-6 掳head-low bed rest (HDBR) experiment with routine thermal comfort test in aerospace medical field is adopted. Skin microcurrents were measured in 6 male subjects under 12 different air temperature and humidity. The skin microcurrents were used as the indication signal of human sweating. The results showed that under the condition of low air relative humidity (RH=30%), HDBR simulated weightlessness, the sweating rate of human skin (RH=30%) needed higher air temperature stimulation than that of HDBR before bed rest, and the sweating rate was lower than that before bed rest. Under the condition of moderate humidity (45%), the skin sweating rate of simulated weightlessness increased with the increase of air temperature, but was significantly lower than that of HDBR before bed rest. Under the condition of high humidity (80%) and ambient temperature higher than 29 鈩，
本文编号：2421360
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