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流体温度对感知和生理应变之间的关系和协议的影响,在模拟工作中在炎热的环境中进行模拟工作
Fergus K O'Connor1, Brodie J Richards1, Leonidas G Ioannou2
1Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada.
Journal of thermal biology
|March 2, 2025
概括
在暴露于热量期间摄入冷液体并没有改变感知和生理应变之间的关系. 然而,冷流体加剧了这些测量之间的一致性,影响了热应变的感知.
科学领域:
- 环境生理学环境生理学
- 人类在高温环境中的表现
- 热调节 热调节 热调节
背景情况:
- 摄入寒冷的液体有助于在高温工作期间的水分和生理功能.
- 建议对生理应变指数 (PSI) 进行监测,但在后勤方面具有挑战性.
- 感知应变指数 (PeSI) 是PSI的一个主观替代品,但其对冷流体的准确性是未知的.
研究的目的:
- 调查冷与热液摄入对感知和生理热应变之间的关系的影响.
- 为了确定冷流体摄入是否会影响主观热应变估计的准确性.
主要方法:
- 20名年轻人在40°C的高温下骑自行车,饮用冷 (0°C) 或热 (37.5°C) 的液体.
- 生理应变指数 (PSI) 从直肠温度和心率计算出来.
- 感知应变指数 (PeSI) 是从感知劳动和热感觉等级中得出的.
主要成果:
- 液体温度没有显著影响直肠温度,心率,感知劳动力或热感.
- 在所有流体温度条件下,PeSI和PSI之间的关系保持一致.
- 在冷液体摄入后,与热液体相比,PSI和PeSI之间的协议明显较差.
结论:
- 摄入冷液体不会改变感知和生理热应变之间的相关性.
- 然而,与温暖的流体相比,冷的流体会降低主观热应变感知的准确性.
- 这表明,在摄入冷液体后仅使用主观测量来评估热应变时,应谨慎.
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