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在运动期间,在炎热的天气中使用热防护服进行上半身与全身冷却
Aerospace medicine and human performance
|August 22, 2024
概括
活性冷却显著提高了消防员在炎热条件下的性能. 全身冷却提供了比上身冷却更大的好处,用于温度调节和舒适性,在艰苦的运动中使用防护装备.
科学领域:
- 环境生理学环境生理学
- 职业健康 职业健康 职业健康
- 热应激管理 热应激管理
背景情况:
- 消防员的轮回装备阻碍了散热,增加了核心温度,降低了在炎热环境中的性能.
- 积极冷却干预措施,如冷却背心,正在探索以减轻热应激.
- 将身体上部 (UB) 与全身 (WB) 制冷进行比较对于优化消防员安全和性能至关重要.
研究的目的:
- 为了比较UB与WB主动冷却在减轻温度调节和生理压力的有效性.
- 评估冷却策略对认知功能,热舒适度和劳动力评级的影响.
- 为了评估冷却效率在模拟的消防练习在一个炎热的环境中,同时穿着转机装备.
主要方法:
- 八个健康的个体经历了三个实验条件:控制 (没有冷却),UB冷却和WB冷却.
- 参与者在40°C,40%的相对湿度环境中运动,同时穿着消防员位装备.
- 运动包括三个15分钟的步行节目,间隔5分钟的休息时间.
主要成果:
- 与对照条件相比,UB和WB冷却都提高了炼完成率.
- WB冷却在降低核心和皮肤温度以及提高热舒适度方面表现出卓越的结果.
- 在最小化核心温度上升方面,WB冷却的优势在第三次练习中变得明显.
结论:
- 积极冷却策略对在炎热条件下工作的消防员是有益的.
- 全身冷却提供了比强度炼期间的身体上部冷却更好的温度调节和舒适性好处.
- 需要进一步的研究来确定WB冷却在轻到中等强度运动中的有效性,这与实际的消防场景相关.
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