大脑血液流动和脑血管反应性因年轻时的成熟阶段和运动训练状态而发生变化
Jack S Talbot1,2, Dean R Perkins3, Christine M Tallon4
1Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK.
Experimental physiology
|September 24, 2023
概括
儿童时期的耐力运动增强了脑血管功能,在训练有素的青少年男性中看到的脑血流升高等好处. 早期运动促进大脑血管的发育,这对终身大脑健康至关重要.
科学领域:
- 神经科学是一个神经科学.
- 运动生理学 运动生理学
- 发展生物学 发展生物学
背景情况:
- 淋巴腺激素和类似胰岛素的生长因子1 (IGF-1) 影响脑血管功能和脑血管生成.
- 青春期是一个关键的神经发育时期,具有高的荷尔蒙和IGF-1活性.
- 运动训练在青春期对脑血管功能的影响在很大程度上是未知的.
研究的目的:
- 调查青春期运动训练是否能提高全球脑血流 (gCBF) 和脑血管对高头的反应性.
- 为了确定成熟状态 (高峰前与高峰后的高度速度) 是否会影响运动对脑血管功能的影响.
- 检查青少年心肺健康和脑血管参数之间的关联.
主要方法:
- 双重超声波用于评估128名青少年的gCBF和脑血管活性.
- 参与者根据培训状态 (受过培训与未受过培训) 和成熟状态 (PHV前与PHV后) 分类.
- 使用三因素ANOVA分析成熟度,性别和培训状况的影响.
主要成果:
- 在PHV前的年轻人比PHV后的年轻人具有更高的gCBF和更慢的脑血管反应反应时间.
- 经过训练的青少年男性 (PHV后) 与未经训练的同行相比,表现出高gCBF.
- 在训练有素的PHV前儿童中,脑血管反应性更快,但在训练有素的青少年中没有.
- 心肺健康与PHV后年轻人的gCBF相关,以及PHV前年轻人的反应性.
结论:
- 在儿童时期的运动训练有助于大脑血管功能发展.
- 青春期更高的心肺呼吸能力与改善的gCBF有关.
- 在青春期的运动训练可以增强脑血管功能,益处因成熟状态和性别而异.
- 早期的运动对于塑造长期的脑血管现象型至关重要.
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