在温暖的环境中进行高强度运动时建模温度调节反应
Xiaojiang Xu1, Timothy P Rioux1, Alexander P Welles1
1Thermal and Mountain Medicine Division, U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States.
Journal of applied physiology (Bethesda, Md. : 1985)
|February 22, 2024
概括
六热调节模型 (SCTM) 准确地预测了在温暖条件下强度炼期间的核心体温. 这种经过验证的模型有助于确保运动员和军事人员在炎热环境中的安全.
科学领域:
- 生理学 生理学 生理学
- 环境健康 环境健康
- 计算建模 计算建模
背景情况:
- 六温度调节模型 (SCTM) 是为休息的人类而建立的.
- 准确的温度调节模型对于预测体力活动期间的热应激至关重要.
- 全球变暖需要更新在温暖环境中进行强度运动的模型.
研究的目的:
- 为了验证SCTM在在温带和温暖环境中进行强度运动时预测核心体温的准确性.
- 评估模型能够考虑体型变化 (大个体与小个体) 的能力.
- 确认SCTM在职业,体育和军事环境中制定安全指南的实用性.
主要方法:
- 利用了之前收集的三组数据集,涉及半常规自行车和赛道试验.
- 收集的数据包括不同的环境条件 (25.1°C至36.2°C) 和代谢速率 (570W至1300W).
- 将SCTM预测的核心温度与观察到的核心温度进行比较,计算根平均平方偏差 (RMSDs).
主要成果:
- 在所有数据集中,SCTM预测的核心温度与观察到的温度非常接近.
- RMSDs范围从0.06°C到0.46°C,平均偏差为0.2°C,远低于0.5°C的接受值.
- 该模型准确地捕捉了大个体和小个体之间的核心温度差异.
结论:
- 在温暖的环境中进行强度运动时,SCTM在预测核心体温方面表现出可接受的准确性.
- 该模型成功考虑了温度调节中的个体体积差异.
- 经过验证的SCTM可以为在炎热的气候中炼或工作的人员提供安全协议.
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