在慢性中风中,低体积高强度间歇运动期间的中低脑动脉血速
Alicen A Whitaker1,2,3, Saniya Waghmare1,4, Robert N Montgomery5
1Department of Physical Therapy, Rehabilitation Science, and Athletic Training, University of Kansas Medical Center, Kansas City, KS, USA.
概括
卒中后的个体在高强度间歇训练 (HIIE) 期间和之后表现出下中脑动脉血速 (MCAv). 增加的动脉硬性可能会导致中风幸存者的脑血管反应能力下降.
科学领域:
- 脑血管生理学 脑血管生理学
- 运动科学 运动科学
- 神经学 神经学
背景情况:
- 高强度间歇训练 (HIIE) 带来潜在的脑血管挑战,特别是对于中风后的人来说.
- 了解中风幸存者对HIIE的脑血管反应对于优化炼方案和恢复至关重要.
研究的目的:
- 与对照人群相比,研究中脑动脉血液速度 (MCAv) 在HIIE期间和之后在中风后的个人中.
- 检查在中风幸存者中HIIE期间动脉刚性和脑血管反应能力之间的关系.
主要方法:
- 一个低体积的HIIE协议 (10分钟的1分钟间隔) 使用躺着的步进器进行了管理.
- 在HIIE期间测量了MCAv,平均动脉压 (MAP),心率 (HR) 和终潮二氧化碳 (PETCO2).
- 在50名参与者 (25名中风后) 中,关节关节脉冲波速评估了动脉硬度.
主要成果:
- 与对照组相比,中风后的个体在HIIE期间显示MCAv明显较低 (p=0.03).
- 在中风后组中,MCAv的这种降低在HIIE后的30分钟内持续存在.
- 在中风后的个体中观察到较大的动脉硬度 (p=0.01) 并与HIIE期间MCAv响应性降低中度相关 (r=-0.44).
结论:
- 在中风后的个人在HIIE期间和之后表现出减弱的MCAv,这表明大脑血管调节受损.
- 增加的动脉硬可能是导致该人群中脑血管反应能力下降的因素.
- 研究结果强调需要仔细考虑在中风后对个体的HIIE协议.
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