van Rensburg A J, Mitchell D, van der Walt W H, Strydom N B
Br J Ind Med. 1972 Oct;29(4):387-93. doi: 10.1136/oem.29.4.387.
387-393. This paper describes the laboratory testing of a water-cooled vest and of a pre-frozen jacket on men working in hot humid environments. The work rate used in the tests was comparable with that of moderately hard industrial work. Three measures of strain were used, namely, rectal temperature, heart rate, and sweat rate. The tests showed that the water-cooled vest provided protection physiologically equivalent to removing the entire environmental heat stress, even at wet bulb temperatures of 33·9°C. The pre-frozen jackets provided better protection at 32·2°C wet bulb than at 33·9°C wet bulb. The garments have the potential to restore the loss in productivity caused by heat stress.
387 - 393。本文描述了对在炎热潮湿环境中工作的男性使用水冷背心和预冻夹克的实验室测试。测试中使用的工作强度与中等强度的工业工作相当。采用了三种应变测量方法，即直肠温度、心率和出汗率。测试表明，即使在湿球温度为33.9°C时，水冷背心提供的生理保护等同于消除全部环境热应激。预冻夹克在湿球温度为32.2°C时比在33.9°C时提供更好的保护。这些服装有潜力恢复因热应激导致的生产力损失。
