文章基本信息

标题：Comparing the Effect of Two Portable Cooling Vests on Physiological Parameters under Hot Laboratory Conditions
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作者：Firouz valipour ; Firouz valipour ; Habibollah Dehghan 等
期刊名称：Iranian Journal of health, safety andenvironment
印刷版ISSN：2345-3206
电子版ISSN：2345-5535
出版年度：2019
卷号：vol.6,No.2
页码：1243-1248
出版社：Iranian journal ofhealth, safety andenvironment
摘要：Personal protective clothing (PPC) can cause heat strain. The purpose of this study was Heat strain control by two portable cooling vests under wearing vapor protective suit and hot condition. An experimental study was conducted in a climatic chamber on 15 male students under warm conditions (ambient temperature =40°C, relative humidity=40%). Each participant performed the test without a cooling vest and with Spadana (Of 70% cotton and 30% polyester with 10 pockets for PCM: Hydrogel packages and a total weight of 2.3kg) and Techkewl-7026 (100% cotton with 4 pockets for PCM packages and a total weight of 2 / 2kg) phase change material cooling vests. The activity rate on a treadmill was light (2.8km/h) and the test lasted 30 minutes for each stage. Cooling effects were evaluated by measuring heart rate, oral temperature and skin temperature. Results showed that the mean and standard deviation for heart rate, oral temperature and skin temperature with a Spadana cooling vest were 100.55 (8.12)(bpm), 36.83 (0.25)°C and 31.52(1.85)°C, respectively, and for Techkewl-7026 cooling vests were 103.64 (10.9)(bpm), 36.98(0.34)°C and 34.2 (1.4)°C, respectively, and for without cooling vest were 113.33(11.23)(bpm), 37.05(0.35) °C and 37.93(0.48) °C, respectively . The difference between parameters with cooling vests and without cooling vest was statistically significant (p < 0.05). The use of Spadana and Techkewl-7026 phase change material cooling vests can reduce thermal stress through a reduction in heart rate, oral temperature, skin temperature and sweating rate.
关键词：Cooling Vest; Phase Change Materials; Heat Strain; Hot and Dry Conditions