發(fā)布時(shí)間：2019-02-13 08:26

【摘要】：針對(duì)失重條件下人體出汗所發(fā)生的變化,采用航天醫(yī)學(xué)領(lǐng)域的-6°頭低位臥床(HDBR)實(shí)驗(yàn)與常規(guī)熱舒適實(shí)驗(yàn)相結(jié)合的方法,在12種空氣溫濕度下對(duì)6名男性受試者進(jìn)行不同部位皮膚微電流的實(shí)驗(yàn)測(cè)量,將皮膚微電流作為人體出汗的指示信號(hào).研究結(jié)果表明:HDBR模擬失重時(shí),空氣相對(duì)濕度較低的條件下(RH=30%)人體皮膚出汗比HDBR臥床前需要更高的空氣溫度刺激,并且出汗率相比臥床前出現(xiàn)一定程度的降低;中等濕度(45%)條件下,模擬失重時(shí)的皮膚出汗率隨著空氣溫度增高而增加,但是顯著低于HDBR臥床前的水平;高濕條件(80%)下且環(huán)境溫度高于29℃時(shí),模擬失重時(shí)人體皮膚出汗率顯著增高,其值低于HDBR臥床前的水平但與其差值逐漸減小.此外,在實(shí)驗(yàn)環(huán)境下所有受試者的皮膚出汗敏感度降低,并且大腿、小腿、上臂皮膚出汗率顯著低于額頭、胸和背部皮膚處的出汗率.研究證明,模擬失重條件下人體皮膚出汗與正常重力時(shí)存在不同的變化,研究結(jié)果可為載人航天時(shí)人體熱環(huán)境的改善提供依據(jù).
[Abstract]:In view of the changes of human body sweating under weightlessness, the method of combining-6 擄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，

本文編號(hào)：2421360