天花板风扇对卧床老年人内心温度的影响 暴露于室内过热的老年人
Fergus K O'Connor1,2, Robert D Meade1,3, Kristina-Marie T Janetos1
1Human and Environmental Physiology Research Unit, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada.
Journal of the American Geriatrics Society
|September 27, 2025
概括
在模拟过热过程中,天花板风扇显著降低了老年人核心体温和心血管应变. 然而,仅靠风扇就不足以提供完整的热保护,这表明需要采用联合冷却方法.
科学领域:
- 环境健康 环境健康
- 老年学是一门学科.
- 热调节 热调节 热调节 热调节
背景情况:
- 全球变暖增加了室内过热的风险,尤其是对老年人来说.
- 在温暖的室内环境 (~31°C) 中,天花板风扇的有效性尚未得到研究.
- 这项研究评估了天花板风扇在模拟过热期间对核心温度和心血管应变的影响.
研究的目的:
- 评估天花板风扇在减轻老年人热应激方面的有效性.
- 为了确定天花板风扇是否可以在长时间的室内过热期间降低核心体温和心血管应变.
- 为弱势群体提供热健康保护战略的信息.
主要方法:
- 一项涉及20名老年人 (平均年龄71岁) 的随机研究.
- 参与者接受了8小时的室内模拟过热 (31°C,45%RH) 暴露,并没有天花板风扇 (~1.5 m/s).
- 核心温度和心血管应变受到监测.
主要成果:
- 天花板风扇的使用显著降低了0.2°C的峰值核心温度 (p < 0.001).
- 二次结果,包括心率和热不适,也在使用风扇时显著减少.
- 风扇的使用并不能完全消除由热引起的生理应变.
结论:
- 天花板风扇在老年人中提供了重要的但不完整的保护,防止与热有关的生理应变.
- 建议采用"风扇优先"的策略,将风扇与其他冷却方法相结合,以增强热健康保护.
- 对集成冷却解决方案的进一步研究是有必要的.
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