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在训练有素的雄性小鼠中,运动性能通过通过改善代谢特性和毛细血管形状来促进间歇性高氧
1Laboratory of Exercise Physiology, Health and Sports Sciences, Course of Sports Education, Department of Education, Hokkaido University of Education, Midorigaoka, Iwamizawa, Hokkaido, Japan.
Physiological reports
|April 22, 2025
概括
间歇性高氧训练通过增强代谢酶和毛细血管密度,显著提高训练良好的小鼠的耐力. 这种提高的运动能力表明了提高运动表现的新方法.
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
- 生物化学 生物化学
背景情况:
- 已知间歇性高氧训练可以提高运动表现.
- 然而,它对已经训练有素的个体的影响在很大程度上仍未确定.
研究的目的:
- 研究间歇性高氧训练对训练能力和训练良好的小鼠生理适应的影响.
- 为了确定间歇性高氧训练是否在这个人群中提供了超越传统耐力训练的额外好处.
主要方法:
- 小鼠接受了7周的初始自愿运行,以建立一个训练有素的状态.
- 随后,他们被分为两个组进行4周的跑步机训练:间歇性高氧 (INT) 或常规耐力运动 (ET).
- 评估了最大的运动能力,肌肉代谢酶水平 (cytochrome-c-oxidase,3-hydroxyacyl-CoA-dehydrogenase,3-hydroxyacyl-CoA-dehydrogenase,pyruvate dehydrogenase复合物) 和毛细血管与纤维的比率.
主要成果:
- 与传统耐力训练相比,间歇性高氧训练显著增加了最大的运动能力.
- INT组在各种肌肉中显示出关键代谢酶 (COX,HAD,PDHc) 的水平显著更高.
- 在INT组的肌肉和肌肉肌肉中观察到增强的毛细血管与纤维的比率.
- 代谢酶水平和毛细血管密度与最大工作值正相关.
结论:
- 在间歇性高氧症下进行训练有效地提高了训练良好的小鼠的耐力表现.
- 这种改善很可能是由于代谢酶活性增加和骨肌肉毛细血管供应改善而引起的.
- 间歇性过氧是一种有前途的训练策略,可以进一步提高训练有素运动员的运动能力.
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