指纹人体测量可能不会对冷却和回暖的热反应产生主要影响
Kate A Wickham1, Stephen S Cheung1
1Environmental Ergonomics Lab, Department of Kinesiology, Brock University, St. Catharines, Ontario, Canada.
Temperature (Austin, Tex.)
|June 19, 2023
概括
指的形状 (表面积与体积的比) 在暴露于寒冷和重新加热期间不会显著影响手指的温度或血液流动. 人类测量在身体的极端寒冷反应中起到很小的作用.
科学领域:
- 人类生理学 人类生理学
- 人类学是人类学.
- 适应寒冷的情况
背景情况:
- 由于其高表面积与体积的比率,手指容易受到热损失和冷伤害.
- 人类手指的人类测量有所不同,可能是由于适应不同气候.
研究的目的:
- 为了研究手指表面积与体积比 (SA:V) 与手指温度和血液流量在冷暴露和再加热期间之间的关系.
- 测试一个较小的SA:V比率在寒冷条件下提供保护优势的假设.
主要方法:
- 15名健康成年人接受了冷水中受控浸泡,然后再加热空气.
- 连续测量手指温度和血流在多个数字.
- 数字SA:V比率与生理反应之间的相关性分析.
主要成果:
- 在数字SA:V比率和冷却过程中的平均手指温度之间观察到显著的负相关性.
- SA:V比率与冷却过程中的手指温度曲线下的面积存在微弱的相关性.
- 在冷却过程中的SA:V比率和血液流量之间没有发现显著的关系,也没有在重新加热过程中的任何措施.
结论:
- 数字人体测量,特别是SA:V比率,似乎不是人类 extremity 寒冷反应的主导因素.
- 这些发现表明,其他生理机制对调节手指温度和血液流动在寒冷中更为关键.
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