发的志愿者在3小时暴露在寒冷,潮湿和狂风条件下,核心温度略有下降
Ane M Helland1,2,3, Sigurd Mydske1,2,3, Jörg Assmus3,4
1Department of Clinical Medicine, University of Bergen, Bergen, Norway.
Wilderness & environmental medicine
|October 24, 2025
概括
发有助于健康的个体在寒冷潮湿的条件下保持正常的核心体温. 在寒冷的环境中缺乏,可能是患者体温下降的信号.
科学领域:
- 环境生理学环境生理学
- 创伤医学 创伤医学
- 热调节 热调节 热调节
背景情况:
- 低温症显著增加创伤患者的死亡率.
- 在有意识的患者中,准确地诊断低温症是具有挑战性的,因为设备有限.
- ,一个温度调节反应,是低温的临床指标.
研究的目的:
- 为了研究模拟的医院前低温的核心温度变化.
- 为了评估在寒冷,潮湿和狂风条件下的热效应.
- 为了描述发的个体的核心温度轨迹.
主要方法:
- 十五名健康的志愿者被暴露在一个5.0°C的气候室中,穿着潮湿的衣服3小时.
- 使用食道探头 (Teso) 和可摄入囊 (Tcap) 来测量核心体温.
- 发是通过氧气消耗 (VO2) 和客观观察量化.
主要成果:
- 核心温度在3小时后略有降低 (Teso:0.25°C,Tcap:0.11°C).
- 最初的核心温度增加,冷却速度为0.17°C·h-1 (Teso).
- VO2与观察到的发相关,与Teso相反.
结论:
- 在模拟的恶劣条件下,健康的个体在3小时内保持正常的核心温度.
- 的热量产生对于维持正常热量至关重要.
- 在寒冷的环境中不发是患者体温下降的关键预警信号.
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