Evaluation of the effect of parasol on physiological response of human body by subject experiments

Abstract

In this study, we evaluated the effect of parasol shielding on the human body. An outdoor subject experiment was conducted on a sunny day in summer. In the experiment, air temperature, humidity, wind speed, radiation, floor / sunshade / globe temperature were measured as environmental measurement, and skin temperature at seven points, core temperature, metabolism, blood flow, and weight change were measured as physiological measurement and psychological reports of warmth, comfort, and fatigue were measured. From the experimental results, there was a large difference in the amount of sweating, the rise in core temperature / mean skin temperature, and the thermal sensation between sunny and under parasol area when standing (low metabolism). There was a difference in the amount of sweating during walking (high metabolism). In addition, multiple regression analysis was performed to analyze the effects of environmental factors and metabolic rate. The effects of items other than wind speed could be confirmed on the amount of sweating, especially the amount of metabolism and parasol. It was confirmed that the core temperature change was affected only by the amount of metabolism, but the effect on other items could not be confirmed.