区域性身体组成和人类核心温度对成人温和温度水浸泡的反应
Xiaojiang Xu1, Stefan A Gutierrez1,2, Timothy P Rioux1
1Thermal and Mountain Medicine Division, U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts, USA.
Physiological reports
|December 10, 2025
概括
区域体的组成显著影响水中浸泡期间的核心温度. 下半身脂肪质量与更快的冷却相关,表明在冷水中保持核心体温的能力降低.
科学领域:
- 生理学 生理学 生理学
- 环境健康 环境健康
- 热调节 热调节 热调节
背景情况:
- 浸水是热调节研究的常见方法.
- 了解影响核心温度反应的因素对于安全性和性能至关重要.
研究的目的:
- 为了研究区域体组成和冷水浸泡期间核心温度变化之间的关系.
- 确定身体脂肪分布如何影响身体维持核心温度的能力.
主要方法:
- 46名志愿者在18,22和26°C的温度下进行了水浸.
- 使用双能X射线吸收计评估了区域身体成分.
- 持续监测核心直肠温度 (Tc) 和皮肤温度.
主要成果:
- 核心冷却速度因个体和温度而有很大差异.
- 在所有条件下,车身脂肪质量与Tc冷却率有显著的负相关性.
- 具有较高冷却速度的个体拥有明显较少的干脂肪质量.
结论:
- 区域性身体组成,特别是体脂肪质量,是浸水期间核心温度调节的关键决定因素.
- 下半身脂肪质量损害了在寒冷环境中捍卫核心体温的能力.
- 这些发现对理解低温风险和优化保护策略有影响.
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