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间歇性缺氧训练可以改善大脑血流,而不会导致认知障碍

Qihan Zhang¹, Qing Wang¹, Feiyang Jin¹

¹Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China.

Annals of clinical and translational neurology

|November 15, 2024

概括

间歇性缺氧训练在健康成年人中改善了大脑血流. 这种干预增强了血液流动速度和脑血管导电性,同时降低了阻力,这表明对大脑循环的潜在益处.

科学领域:

神经科学是一个神经科学.
生理学生理学生理学
心血管科学心血管科学

背景情况:

间歇性缺氧 (IH) 可能具有保护作用,动物研究表明脑血流 (CBF) 增加和对损伤的抵抗力.
对IH对人类CBF和认知功能的影响的临床证据仍然有限.
这项研究调查了中度,短期的IH协议对大脑血液动力学和认知的影响.

研究的目的:

评估中度短期间歇性缺氧方案对大脑血流的影响.
评估间歇性缺氧对健康参与者的认知表现的影响.

主要方法:

100名健康参与者被随机分配到间歇性缺氧 (IH) 组或对照组.
大脑血液动力学,认知性能,大脑 perfusion 压力和氧气和都在干预前后进行测量.
心脏病组接受了心脏病培训,而对照组接受了虚假培训.

主要成果:

与对照组相比,IH组显示出明显更高的峰值缩血流速度和脑血管导电指数 (CVI).
干预后,IH组也表现出明显较低的脑血管抵抗指数 (CVRI).
在IH组中,训练导致CBF速度,CVI增加,CVRI降低 (p <0.05).
两组之间没有观察到认知功能,大脑 perfusion 压力或氧气和的显著差异.

结论:

间歇性缺氧训练似乎是一种安全有效的方法来增强大脑血流.
这些发现表明,IH可以积极调节健康个体的脑血管动态.
进一步的研究可以探索IH在患有脑血管功能障碍的临床人群中的潜力.

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