在休游泳运动员和世界级游泳运动员的三腕中氧化和O2扩散功能
Simone Villanova1,2, Elisa Pastorio3, Andrea M Pilotto2
1Department of Movement, Human and Health Sciences, University of Rome 'Foro Italico', Rome, Italy.
Experimental physiology
|April 26, 2025
概括
游泳者肌肉氧化能力更高与更好的表现和训练量有关. 肌肉氧气扩散阻力在技能水平上没有差异,这表明氧化能力是游泳成功的关键.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
- 生物医学工程 生物医学工程
背景情况:
- 游泳表现依赖于有效的氧气输送和肌肉内的利用.
- 近红外光谱学 (NIRS) 提供了一种非侵入性方法来评估肌肉氧化率.
- 了解肌肉氧化能力,氧气扩散和游泳表现之间的关系对于训练优化至关重要.
研究的目的:
- 评估体内氧化能力和在游泳者三腕中对O2扩散的相对抵抗力.
- 为了将这些生理测量与游泳表现和训练量相关联.
- 为了在各种竞争性游泳水平上区分这些参数.
主要方法:
- 近红外光谱学 (NIRS) 用于在不同氧气条件下 (kHIGH和kLOW) 测量三腕中氧气回收率 (k).
- 在kHIGH和kLOW (Δk) 之间的差异被计算为对O2扩散的相对阻力指数.
- 游泳者 (n=28) 被分为娱乐,国家和国际/世界级等级,通过100米自由泳试验和自我报告的训练量来评估表现.
主要成果:
- 与休游泳者相比,在国内和国际/世界级游泳者中观察到更高的氧化能力 (kHIGH).
- kHIGH与FINA积分,100米自由式表现和每周训练量正相关.
- 在游泳层之间没有发现相对抗氧气扩散 (Δk) 的显著差异,也没有与训练量或表现的关联.
结论:
- 骨的氧化能力是与更高的游泳表现和训练负载相关的重要生理因素.
- 肌肉的氧气扩散能力似乎在不同水平的游泳者之间相对一致.
- 尼尔斯可以有效地区分肌肉的氧化能力,强调其在精英游泳中的重要性.
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