在身体非常活跃与不活跃的健康男性的血管阻塞测试期间肌肉氧气提取:一项比较研究
Marcelo Tuesta1,2, Rodrigo Yáñez-Sepúlveda3, Matías Monsalves-Álvarez4
1Exercise and Rehabilitation Sciences Laboratory, School of Physical Therapy, Faculty of Rehabilitation Sciences, Universidad Andres Bello, Viña del Mar 2520000, Chile.
Journal of functional morphology and kinesiology
|March 25, 2024
概括
与不活跃的人相比,身体活跃的男性表现出优越的肌肉氧化代谢和血液流动. 每周从事300分钟以上的体育活动可以改善血管健康和四头肌功能.
科学领域:
- 运动生理学 运动生理学
- 运动医学 运动医学
- 肌肉的新陈代谢
背景情况:
- 肌肉中最佳的氧气输送和利用对于提高有氧能力和整体健康至关重要.
- 显著的健康益处,包括增加肌肉质量和减少脂肪质量,与每周体育活动超过300分钟有关.
- 了解活跃和不活跃个体之间的肌肉血管和代谢特征的差异是促进运动的关键.
研究的目的:
- 为了比较身体非常活跃和不活跃的健康男性的肌肉血管和代谢概况.
- 研究身体活动水平与肌肉氧化和代谢反应之间的关系.
主要方法:
- 20名健康男性被分为两组:身体非常活跃 (>300分钟/周) 和身体不活跃.
- 使用全球体力活动问卷 (GPAQ) 评估体力活动水平.
- 静止血管封闭试验与近场红外光谱学 (NIRS) 结合,评估了横向巨大的肌肉氧化率.
主要成果:
- 身体非常活跃的受试者表现出显著更高的脱氧血球蛋白 (HHb) 水平,这表明氧气利用率提高.
- 非常活跃的组在再注血过程中表现出较低的组织和指数 (TSI),这表明肌肉 perfusion 的改善.
- 观察到HHb和TSI之间的负相关性,突出显示氧代谢和血管功能之间的相互作用.
结论:
- 身体非常活跃的男性 (>300分钟/周) 与不活跃的男性相比,具有更好的肌肉氧化代谢和 perfusion.
- 通过GPAQ测量较高的体力活动水平,直接与更好的血管功能和运动肌肉的氧化能力有关.
- 达到非常活跃的状态为血管健康和肌肉氧化代谢带来了巨大的好处,符合世卫组织的建议.
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