摘要
心率作为研究人体热感觉的一项外在生理指标,其随海拔高度的变化也表现出与常压不同的特点,为进一步了解低气压环境下不同压力对人体心率及热感觉的影响规律,探讨在低气压环境下是否存在人体心率及热感觉的压力敏感区,本文模拟高原低气压环境,通过问卷调查的形式,对20名受试者处在不同压力环境中的平均心率及热感觉变化规律进行了实验研究.结果表明,在本实验模拟的最低压力75.98 kPa（约海拔高度2 300 m）的范围内,人体平均心率及平均热感觉值随压力的降低而降低;压力在86.11 ～101.3 kPa时,人的心率及热感觉变化显著;压力在86.11 kPa以下时,人的心率及热感觉变化很小.进而得到低气压环境下人体心率及热感觉的压力敏感区,即86.11～101.3 kPa之间.
The heart rate serves as an outer physiological index for study on the thermal sensation of human body,and shows a feature different from that in normal pressure when the height above sea level is changed.In order to further make clear the effect of different pressures on the human body heart rate and thermal sensation in the low air pressure environment,this paper simulates the low air pressure environment of plateau,and make an experimental study on the variation law of the mean heart rate and thermal sensation of 20 subject persons at different pressures in the form of questionnaire.The result shows that,within the lowest pressure 75.98 kPa （approximately 2 300 meter high above sea level） simulated by the experiment,The mean heart rate and average thermal sensation of human body decreases with the fall in pressure.At the pressure 86.11 kPa to 101.3 kPa,the heart rate and thermal sensation of human body changes markedly.When the pressure is lower than 86.11 kPa,the heart rate and thermal sensation of human body changes very little.In this way,the pressure sensitive area of human body heart rate and thermal sensation under low air pressure environment is obtained,i.e.between 86.11 ～ 101.3 kPa.
出处
《建筑科学》
北大核心
2014年第4期42-44,71,共4页
Building Science
关键词
热感觉
心率
压力
问卷调查
敏感区
thermal sensation
heart rate
pressure
questionnaire
sensitive area
