蒸发式冷却能否在热/干燥和温暖/潮湿的环境中减弱运动期间的生理和感知反应?
Ken Tokizawa1, Hidenori Otani2
1National Institute of Occupational Safety and Health, Japan.
Industrial health
|November 30, 2025
概括
使用浸泡水的衫和通风衣进行蒸发式冷却,在炎热和潮湿的条件下在运动期间显著降低了核心体温和汗水流失. 这种冷却方法也改善了热舒适度,并减少了感知到的劳动力.
科学领域:
- 环境生理学环境生理学
- 热调节 热调节 热调节
- 人类表现的人类表现.
背景情况:
- 运动期间的热应激对生理功能和表现构成风险.
- 对于在炎热的环境中炼的人来说,有效的冷却策略至关重要.
研究的目的:
- 为了评估蒸发式冷却的有效性,使用水浸的内衣T恤和通风衣.
- 评估其对在热/干燥和温暖/潮湿条件下行走运动期间生理和感知反应的影响.
主要方法:
- 8名男子在受控 (CON) 和蒸发式冷却 (EVA) 条件下行走了60分钟.
- 埃瓦涉及一个浸水的内衣T恤和一个通风克 (风扇).
- 收集了生理 (直肠温度,汗流失) 和感知 (热感,不适) 数据.
主要成果:
- 蒸发式冷却 (EVA) 在两种环境中 (p<0.002) 与对照 (CON) 相比,明显降低了直肠温度约0.4°C (p<0.002).
- 在热/干燥和温暖/潮湿条件下,全身出汗损失在EVA与CON相比减少了一半 (p<0.001).
- 用EVA显著减少热感和不适 (p<0.05).
结论:
- 与通风服装一起穿着浸泡水的内衣有效地减轻了热生理应变和感知不适.
- 这种冷却策略在超过皮肤温度的环境和高湿度条件 (WBGT ≤ 31.5 °C) 中是有益的.
相关概念视频
Requirements for Human Life
12.4K
The Earth and its atmosphere have provided humans with air, water, and food, but these are not the only requirements for survival. Humans also require a specific range of temperature and pressure that the Earth and its atmosphere provides.
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...
12.4K
Responses to Heat and Cold Stress
14.6K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
14.6K
Thermoregulation
2.2K
The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
2.2K
Mechanism of heat transfer
1.8K
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
1.8K
Mechanisms of Heat Transfer
1.6K
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
1.6K
Body Temperature
4.0K
The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
4.0K


