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Strategies for increasing evaporative cooling during simulated desert patrol mission

机译：在模拟沙漠巡逻任务中增加蒸发冷却的策略

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摘要

The study evaluated the efficiency of two heat dissipation strategies under simulated desert patrol missions. Ten men participated in four trials, during which they walked on a treadmill (45 degrees C, 20% relative humidity), carrying a load of 35kg; two 50-min walks were separated by a 20-min rest. Cooling strategies, provided by an ambient air-ventilated vest (active cooling condition, AC), or water spraying of the skin during the rest (passive cooling condition, PC), in addition to reduced clothing and open zippers, were compared to conditions with full protective (FP) clothing and naked condition (NC). Skin temperature was higher during NC (37.90.4 degrees C; p<0.001), and rectal temperature and heart rate were higher during FP (38.6 +/- 0.4 degrees C, p<0.001 and 145 +/- 12, p<0.001, respectively), compared to other conditions. Four subjects terminated the trial prematurely due to signs of heat exhaustion in FP. Both cooling strategies substantially improved evaporative cooling.
机译：该研究评估了模拟沙漠巡逻任务下两种散热策略的效率。十名男子参加了四项试验，试验中他们在跑步机上行走（45摄氏度，相对湿度20％），负重35公斤；两次步行50分钟，休息20分钟。除了减少衣服和拉链的打开外，还比较了由周围通风的背心（主动降温条件，AC）或休息时对皮肤喷水（被动降温条件，PC）提供的降温策略，以及穿着防护服（FP）和裸露状态（NC）。 NC期间皮肤温度较高（37.90.4摄氏度； p <0.001），FP期间直肠温度和心率较高（38.6 +/- 0.4摄氏度，p <0.001和145 +/- 12，p <0.001 ）。由于FP出现热衰竭的迹象，四名受试者过早终止了试验。两种冷却策略均大大改善了蒸发冷却。

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  • 来源
    《Ergonomics》 |2016年第2期|298-309|共12页
  • 作者

    Ciuha Ursa; Gronkvist Mikael; Mekjavic Igor B.; Eiken Ola;

  • 作者单位

    Jozef Stefan Int Postgrad Sch, Ljubljana, Slovenia|Biomed Doo, Res & Profess Consulting, Ljubljana, Slovenia;

    Royal Inst Technol, Sch Hlth & Technol, Dept Environm Physiol, Stockholm, Sweden;

    Jozef Stefan Inst, Dept Automat Biocybernet & Robot, Ljubljana, Slovenia;

    Royal Inst Technol, Sch Hlth & Technol, Dept Environm Physiol, Stockholm, Sweden;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    protective clothing; evaporative cooling; heat acclimatisation; cooling strategies;

    机译：防护服;蒸发冷却;热适应;冷却策略;

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