坐着的圆运动,但不是定期站立,可以缓解坐着引起的动脉波反射变化
Chloe E Athaide1, Andrew D Robertson, Michaela C Devries1
1Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, ON, CANADA.
Medicine and science in sports and exercise
|January 5, 2024
概括
定期坐着的圆休息有效地减少了长时间坐着引起的中心波反射和血管变化,与站着的休息不同. 需要进一步研究静坐行为的最佳中断策略.
科学领域:
- 心血管生理学心血管生理学
- 运动科学 运动科学
- 公共卫生 公共卫生
背景情况:
- 久坐不动的行为与增加的中心波反射和外周血管收缩有关.
- 久坐不动行为对中央血液动力学和缓解策略的影响需要进一步调查.
研究的目的:
- 调查定期站立或坐着的圆休息是否可以减轻长时间坐在中心波反射上的不良影响.
- 评估这些中断对中央血液动力学和血管参数的影响.
主要方法:
- 18名健康的成年人参与了三个3小时的规程:不间断的坐着,坐着的站立休息,坐着的坐着圆休息.
- 每次干预前后都测量了中心波反射,中心脉冲波速度和下肢脉冲波速度.
主要成果:
- 长时间坐着会增加中心相对波反射大小 (RM),增强指数和中心脉冲波速度.
- 坐着的圆断裂防止了RM,增强指数和中心脉冲波速率的增加.
- 站立休息并没有显著改变RM,但增加了增强指数和中心脉冲波速度.
- 圆活动降低了下肢脉冲波速度,而坐着和站着却没有.
结论:
- 间歇性坐着的圆活动有效地抵消长时间坐着的负面血管影响,包括增加中心波反射.
- 定期站立休息并不能完全缓解这些不良的血管变化.
- 需要进一步的研究来确定最佳的中断策略,以减少与久坐行为相关的血管风险.
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