在冷水浸泡后的被动回暖系统的比较
Phillip J Wallace1, Matthew L Hodgkinson1, Lucas Ramagnano1
1Environmental Ergonomics Laboratory, Department of Kinesiology, Brock University, St. Catharines, Canada.
Wilderness & environmental medicine
|September 13, 2024
概括
一个典型的睡袋和两个加热的低温包装系统同样可以防止在模拟的寒冷环境中进一步冷却核心. 荒野救援人员可以根据实用性进行选择,而不仅仅是回暖的有效性.
科学领域:
- 紧急医疗 紧急医疗
- 环境生理学环境生理学
- 荒野生存 荒野生存
背景情况:
- 低温是寒冷环境中的一个重大风险,需要有效的回暖策略.
- 现场回暖方法对于荒野响应者来说至关重要,以管理意外低温.
- 评估不同升温技术的有效性对于改善患者的治疗结果至关重要.
研究的目的:
- 为了比较一个标准的睡袋与两个加热的低温包装系统的回暖效果.
- 在模拟的寒冷环境中被动回暖时评估生理反应.
- 为了确定最适合于荒野场景的回暖方法.
主要方法:
- 十名参与者通过浸泡水冷却到36.1°C,然后在0°C的空气中再加热60分钟.
- 重温方法包括一个 -9°C级的睡袋和两个加热系统 (Doctor Down Rescue Wrap,TYVAC).
- 核心和皮肤温度,以及代谢热量产生被持续监测.
主要成果:
- 这三种方法都防止了进一步的核心温度下降,维持了与浸入后温度相同或略高的水平.
- 在睡袋,Doctor Down和TYVAC系统之间的直肠温度变化中没有发现显著差异.
- 在所有回暖方法中,平均皮肤温度,代谢热量产生和感知度也相似.
结论:
- 标准的睡袋和加热的低温包裹在防止进一步的核心冷却方面表现出类似的有效性.
- 对于荒野响应者来说,选择回暖方法应该优先考虑环境条件,可用性,方便性和人体工程学.
- 所有测试的方法都是现场再加热的可行选择,在这个模拟中,加热系统在标准睡袋上没有显著的生理优势.
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