间歇运动与连续运动对年轻健康男性脑血管流介导扩张的影响
Harvey J Walsh1, Shotaro Saito2, Narumi Kunimatsu2
1Department of Physiology, Faculty of Medical & Health Sciences, University of Auckland, Auckland, New Zealand.
Physiological reports
|May 5, 2025
概括
间歇运动 (Int-Ex) 比连续运动 (Con-Ex) 更能增加大脑剪切应力 (SS). 然而,这两种运动类型都对大脑内皮功能表现出类似的急性影响,通过脑血管流介导扩张 (cFMD) 来衡量.
科学领域:
- 运动生理学 运动生理学
- 大脑血管健康
- 脑内皮的功能 脑内皮功能
背景情况:
- 众所周知,有氧运动可以降低脑血管功能障碍的风险.
- 运动诱导的大脑剪切应激 (SS) 的增加可能会改善大脑内皮功能.
- 间歇性炼 (Int-Ex) 可能会比连续性炼 (Con-Ex) 诱导更大的大脑SS,但其对内皮功能的影响尚不清楚.
研究的目的:
- 研究Int-Ex与Con-Ex对大脑剪切应激 (SS) 的急性影响.
- 为了确定Int-Ex是否比Con-Ex更能增强大脑内皮功能.
- 为了比较 Int-Ex 和 Con-Ex 之后的大脑血管流介导扩张 (cFMD).
主要方法:
- 14名健康的男性在不同的日子里完成了32分钟的Int-Ex和工作相当的Con-Ex.
- 脑血管流介导扩张 (cFMD) 在每次炼之前和每次炼后15分钟和40分钟被测量.
- 代表峰值内动脉血管扩张的cFMD,使用双重超声波评估,以应对超的挑战.
主要成果:
- 与Con-Ex相比,Int-Ex后的运动后大脑SS显著增加 (p=0.002).
- Int-Ex从休息时增加了~37%的运动后大脑SS,而Con-Ex显示了可以忽略的增加.
- 在Int-Ex和Con-Ex之间在任何时间点 (Pre,Post-15,Post-40) 没有观察到cFMD的显著差异.
结论:
- Int-Ex急剧增加了大脑剪切应力,比Con-Ex.
- 尽管SS有差异,但Int-Ex和Con-Ex在健康男性中对大脑内皮功能表现出类似的急性影响.
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