热环境下人体局部皮肤湿敏感性的分布特征

为研究在热环境下人体局部皮肤湿敏感性的分布特征,以及客观物理湿度与人体主观湿感觉之间的关系,采用弹性针织面料制作贴体连身实验服,在人工气候舱(温度为(30±1) ℃,相对湿度为(35±1)%)内,6位女性受试者穿着实验服以5 km/h的速度在跑步机上步行运动,记录受试者在实验过程中的客观生理数据和主观评价数据。结果表明:热环境中人体皮肤湿敏感性呈现局部分布特征,高敏感区为上额、前胸、下背,中敏感区为上臂、前腹、上背、小臂、臀部,低敏感区为小腿和大腿;实验证实了皮肤的湿度感知随着物理湿润度的提高而增强,湿度感知与物理湿润度存在正相关关系。

Distribution characteristics of local skin moisture sensitivity of human in thermal environment

In order to study the distribution characteristics of local skin moisture sensitivity of human under thermal environment and the relationship between objective physical humidity and human subjective moisture feeling, the body fitted one-piece experimental clothes were made of elastic knitted fabric for tests in the artificial climate cabin (the temperature is (30±1) ℃ and the relative humidity is (35±1)%). Six female subjects wore the experimental clothes and walked on the treadmill at the speed of 5 km/h. The objective physiological data and subjective evaluation data of the subjects were recorded during the experiment. The results indicated that the moisture sensitivity of human skin has some local distribution characteristics in the thermal environment. The high sensitivity areas were the upper forehead, chest and lower back, the medium sensitivity areas were upper arm, anterior abdomen, upper back, forearm and buttocks, and the low sensitivity areas were calves and thighs. The experiment confirmed that the skin humidity perception increased with the increase of physical humidity, and there was a positive correlation between humidity perception and physical humidity.