统计参数映射分析肌肉氧化动力学响应反复冲刺训练在低氧的反应
Clint Hansen1, Franck Brocherie2, Sébastien Racinais3,4
1Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany.
概括
在缺氧 (RSH) 中重复冲刺训练改变了精英女橄球运动员的肌肉氧化动力学. 然而,RSH并没有提高重复冲刺能力,而不是在normoxia中的训练.
科学领域:
- 运动科学 运动科学 运动科学
- 运动生理学 运动生理学
- 肌肉生理学 肌肉生理学
背景情况:
- 精英女橄球七人制球员需要高水平的重复冲刺能力.
- 缺氧训练正在被探索,因为它有可能提高运动表现.
- 了解肌肉氧化动力学对于优化训练至关重要.
研究的目的:
- 为了研究反复冲刺训练在缺氧 (RSH) 对巨大的横向肌肉氧化动力学的影响.
- 为了比较RSH与精英女橄球七人队球员的传统诺莫西克训练.
- 评估训练干预后重复冲刺能力的变化.
主要方法:
- 参与者在9天内进行了4次重复冲刺循环训练.
- 训练是在normobaric hypoxia (10.6% O2) 或normoxia (20.9% O2) 中进行的.
- 使用近红外光谱 (NIRS) 测量肌肉氧化度,以评估组织和指数 (TSI).
- 重复冲刺能力通过8次5秒跑步机冲刺和25秒的恢复进行评估.
主要成果:
- 统计参数映射显示,RSH组干预后在冲刺和恢复期间改变了STI.
- 与干预前相比,RSH组在冲刺和恢复期间显示了 TSI 幅度的下降.
- 无论RSH和normoxia组都改善了累积冲刺距离,条件之间没有显著差异.
结论:
- 在缺氧中重复冲刺训练诱导了精英女橄球运动员肌肉氧化动力学的显著变化.
- 尽管有生理变化,但RSH与诺莫西克训练相比,并没有提高重复冲刺能力.
- 可能需要进一步的研究来优化缺氧协议,以提高这一群体的表现.
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