中文摘要：

从人体生理方面来讲,心率是反映人体新陈代谢率变化的一项外在生理指标之一。而新陈代谢率是影响人体热舒适的主要因素之一,对其进行深入的研究有助于我们更好的了解人体的热舒适性。本文对多名健康青年男女在高原低压模拟舱内进行试验测试,得出在3000米以下的无症状高原反应域低气压环境下,心率随压力的降低而略有降低,为低压下人体热舒适的研究提供一定的生理依据。

英文摘要：

From the view of human physiology,heart rate is one of the extrinsic physiological indexs reflecting the change of human body metabolic rate.Metabolic rate is one of main factors influencing human thermal comfort.Further study is helpful to better understanding of human thermal comfort.From the experimental test to the healthy young people in the simulation chamber with low pressure,we obtain that,within lower-pressure environment of asymptomatic altitude reaction at the altitude below 3000 meters,the heart rate decreased when the pressure decreased.It provides certain physiological basis for human thermal comfort study under low pressure.