Effects of Air Circulation in Clothing Inside on Thermoregulatory Responses at Farming Under Heat Environmental Conditions

• Published in: JAPANESE JOURNAL OF BIOMETEOROLOGY Vol. 49; no. 2; pp. 83 - 92
• Main Authors: Kashimura, Osamu, Suzuki, Eigo, Takahashi, Hirohiko, Minami, Kazuhiro, Nakai, Seiichi
• Format: Journal Article
• Language: English; Japanese
• Published: Japanese Society of Biometeorology 2012; 日本生気象学会
• Subjects: Farming; Fluid intake; Heat disorders; Heat environmental conditions; Thermoregulatory response; Thirst sensation; Tympanic temperature; 体温調節反応; 口渇感; 暑熱環境; 水分補給; 熱中症; 農作業; 鼓膜温
• ISSN: 0389-1313; 1347-7617
• DOI: 10.11227/seikisho.49.83

The purpose of this study was to examine the effects of air circulation in clothing inside on thermoregulatory responses at farming under heat environmental conditions. The subject used ten male university students of 19–20 years old and performed 60-minutes farming. The subject divided it into two groups of the eco-fan group and work clothes group and did it with each five subjects. The measurement items were environmental temperature, the weight, heart rate, energy consumption, quantity of total sweat, quantity of hydration, increase of tympanic temperature, thirst VAS method, temperature humidity in clothes. The increases of in clothing inside temperature and humidity after farming in the eco group were significantly lower than that in working group, respectively (p < 0.05). Mean heart rate during the farming in the eco group was significantly lower than in working group (p < 0.05). Increase of tympanic temperature due to farming in the eco group was significantly lower than that in working group (p < 0.05). Total sweating rate during farming in the eco group was significantly lower than that in working group (p < 0.05). Volume of fluid intake thirst sensation at the farming in the eco group was significantly lower than that in working group (p < 0.05). The wearing of the eco-fan was effective prevention for heat disorders in the heat environment that could not carry out measures to become light clothes from the problem of at the time of farming under the heat environment and the safety.