交替的局部皮肤冷却和加热可以改善长时间坐着引起的前臂皮肤血管扩张功能受损
Yudai Tomita1, Kaname Tagawa1, Takeshi Nishiyasu2
1Institute of Health and Sport Sciences, University of Tsukuba, Tsukuba City, Japan.
Microvascular research
|February 15, 2025
概括
长时间坐着会损害前臂血管功能,减少血液流动. 交替的皮肤冷却和加热干预措施可以减轻这些负面影响,在久坐期间保持血管健康.
科学领域:
- 身体生理学 身体生理学
- 血管生物学 血管生物学
- 热调节 热调节 热调节
背景情况:
- 长时间的坐着是普遍存在的,并且与生理功能受损有关.
- 皮肤血管功能可能会因久坐行为而受到负面影响.
- 了解应对这些影响的干预措施对于公共卫生至关重要.
研究的目的:
- 为了研究长时间坐着对前臂皮肤血管功能的影响.
- 为了确定是否交替局部皮肤冷却和加热可以减轻长时间坐着对血管功能的负面影响.
- 评估对封闭后反应性高血压 (PORH) 和静脉动脉反射 (VAR) 的影响.
主要方法:
- 十一名年轻成年人接受了长时间的75分钟的坐姿.
- 在四个部位调节前臂皮肤温度:控制部位,交替冷却/加热部位,持续加热部位和持续冷却部位.
- 用激光多普勒流量计评估皮肤血管功能,以测量坐在前后的PORH和VAR.
主要成果:
- 在对照条件下,长时间坐着显著降低了封闭后反应性高血压 (PORH).
- 交替局部皮肤冷却和加热可以防止PORH的下降.
- 静脉动脉反射 (VAR) 在对照部位保持不变,但通过交替冷却和加热来增强.
结论:
- 长时间坐着会损害前臂皮肤血管扩张功能,特别是减少PORH.
- 交替局部皮肤冷却和加热有效地减轻了长时间坐着对皮肤血管功能的有害影响.
- 这种热调节策略还增强了静脉动脉反射,这表明它对久坐引起的血管功能障碍起着保护作用.
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