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损害热量损失导致冰泥延迟诱导的储热量减少
Thomas J O'Brien1, Victoria L Goosey-Tolfrey1, Christof A Leicht1
1Peter Harrison Centre for Disability Sport; School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom.
PloS one
|August 9, 2024
概括
摄入冰可以有效地减少高热期的热量储存,当热量损失受到损害时. 这种方法对具有有限的对流和蒸发能力的人来说是有益的,例如那些穿着防护装备的人.
科学领域:
- 运动生理学 运动生理学
- 环境热压力环境热压力
- 热调节 热调节 热调节
背景情况:
- 通过对流和蒸发而损害的热量损失加剧了热应变.
- 了解在具有挑战性的环境中减轻热应变的干预措施至关重要.
研究的目的:
- 评估摄入冰泥在减少热应变方面的有效性.
- 为了研究其在高温症后的疗效,而热量损失受到损害.
主要方法:
- 十二名健康的男性接受了热水浸泡,以诱导高温症.
- 在60分钟的恢复过程中,参与者摄入冰泥 (-0.6°C) 或控制饮料 (37°C).
- 试验使用最小的服装 (T恤/短) 或全身运动套进行,以操纵热量损失.
主要成果:
- 与对照饮料相比,摄入冰泥显著降低了热储量,特别是当热损失受到损害时 (例如,穿着运动服).
- 在摄入冰泥时,直肠温度 (Trec) 降低了.
- 当穿着运动服时,平均皮肤温度 (Tsk) 较高,而冰在不太危险的条件下显示了降低Tsk的趋势.
结论:
- 摄入冰是一种有效的策略,可以减少热量储存在高温症期间,特别是当热量损失机制受损时.
- 这种干预措施适用于有限散热情况的个人,例如佩戴个人防护设备或减少出汗.
- 这项研究表明,虽然冰泥减少了储热量,但当热量损失受到严重限制时,其对皮肤温度的影响可能不那么明显.
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