State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, China.
College of Safety Science and Engineering, Xi'an University of Science and Technology, China.
Int J Occup Saf Ergon. 2022 Jun;28(2):1025-1032. doi: 10.1080/10803548.2020.1858618. Epub 2021 Jan 20.
This study determines the effects of a liquid cooling vest (LCV) on physiological and perceptual responses while wearing stab-resistant body armor (SRBA). Ten healthy male volunteers wearing SRBA performed human trials with the LCV and without (control) in a hot environment (30 °C and 40% relative humidity). Physiological parameters and perceptual responses were recorded during the tests. The results indicated that the difference in the mean skin temperature and scapula skin temperature between the two conditions was up to 1.2 and 2.5 °C, respectively. The LCV did not significantly decrease the core temperature, heart rate, sweat loss, oxygen consumption, rating of perceived exertion and restriction of movement. However, a significant difference was observed between conditions in terms of evaporation efficiency and thermal sensation. Therefore, the LCV attenuated an increase in thermal sensation but did not mitigate physiological strain. This work can provide fundamental knowledge for high-performance personal cooling system development.
本研究旨在确定穿着防刺服（SRBA）时，液体冷却背心（LCV）对生理和感知反应的影响。十名健康男性志愿者在热环境（30°C 和 40%相对湿度）下穿着 SRBA 进行了 LCV 和无 LCV（对照）的人体试验。测试过程中记录了生理参数和感知反应。结果表明，两种情况下平均皮肤温度和肩胛骨皮肤温度的差异分别高达 1.2°C 和 2.5°C。LCV 并未显著降低核心温度、心率、出汗量、耗氧量、感知用力程度和运动受限程度。然而，在蒸发效率和热感觉方面，两种情况存在显著差异。因此，LCV 减轻了热感觉的增加，但并没有减轻生理压力。这项工作可以为高性能个人冷却系统的开发提供基础知识。
