极地生命冷却与冰盖冷却在模拟军事调节练习后
1Texas State University, Department of Health and Human Performance, San Marcos, TX.
Journal of athletic training
|May 13, 2025
概括
极地生命 (PLP) 制冷运动热中风 (EHS) 患者的速度是冰盖冷却 (ISC) 的两倍,达到理想的冷却速度. 由于其卓越的速度和效率,建议PLP用于EHS治疗.
科学领域:
- 运动医学 运动医学
- 环境生理学环境生理学
- 紧急医疗 紧急医疗
背景情况:
- 运动热中风 (EHS) 是一种严重的医疗紧急情况,运动员和军事人员的死亡率很高.
- 便携式冷却方法是必不可少的,当大量的水或浸泡浴是不可用的EHS处理.
- 极地生命 (PLP) 和冰盖冷却 (ISC) 是EHS的有希望的便携式冷却技术.
研究的目的:
- 为了比较极地生命 (PLP) 与冰盖冷却 (ISC) 在降低直肠温度 (TREC) 中的冷却效率.
- 为了确定PLP和ISC是否实现"理想" (>0.16°C/分钟) 或"可接受" (>0.08°C/分钟到0.15°C/分钟) 的压力热冲击 (EHS) 的冷却速率.
主要方法:
- 在实验室环境中进行了一项随机,平衡,交叉研究.
- 14名参与者在高温 (∼37.5°C,∼40%RH) 中进行模拟的军事调节练习,直到TREC达到39.5°C.
- 然后使用PLP (用4.22°C的水填充) 或ISC (用冰水浸泡的床单) 来冷却参与者,直到TREC达到38°C.
主要成果:
- 在PLP (50.5±9.9分钟) 和ISC (48.9±10.9分钟) 之间,冷却时间相似.
- PLP实现了比ISC (0.11±0.05°C/分钟) 显著更快的冷却速度 (0.22±0.08°C/分钟),满足了"理想"标准.
- ISC的冷却速率在运动热冲击 (EHS) 处理中处于"可接受"范围之内.
结论:
- 极地生命 (PLP) 与冰盖冷却 (ISC) 相比,在运动热中风 (EHS) 中表现出更高的冷却效率.
- PLP的更快的冷却速度归因于联合导电/对流冷却,更大的表面处理面积和更大的散热容量.
- 由于温度降低速度更快,冰使用量减少,以及可比的人员/冷却器要求,建议在EHS管理中使用PLP而不是ISC.
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