缺血预调可以降低集中式疲劳指数,提高低速度运动后的氧气和,提高高速运动后的工作产量
William Dos Santos1, Izabela A Santos1,2, Gustavo R Mota1,3
1University of São Paulo.
Research quarterly for exercise and sport
|June 6, 2025
概括
缺血预调 (IPC) 提高了180°/s的总工作输出,并减少了肘部曲炼期间的肌肉疲劳. 这些发现表明,IPC增强了力量和恢复,特别是在快速运动中.
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
- 生物医学工程 生物医学工程
背景情况:
- 运动性能优化推动了对非侵入性技术的兴趣,例如缺血预先调节 (IPC).
- IPC涉及肢体封闭和再输的循环,显示了增强身体能力的潜力.
- 了解IPC对肌肉功能和生理标记的影响对于其应用至关重要.
研究的目的:
- 为了研究缺血预制 (IPC) 对异动力学肘部曲性能的影响.
- 评估IPC对肌肉力量,疲劳和不同速度的生理反应的影响.
- 在IPC之后分析电肌图 (EMG),氧化 (NO),心率 (HR) 和氧度的变化.
主要方法:
- 经过训练的13名男子在60°/s和180°/s的速度下进行了异动态肘部曲测试.
- 参与者在IPC (3次5分钟的闭塞在220mmHg) 和对照条件下进行了测试.
- 测量包括扭矩,总工作,功率,EMG,NO水平,HR和氧和.
主要成果:
- IPC在180°/s时显著增加了总工作 (p=0.01) 并在60°/s和180°/s时降低了同心疲劳指数.
- 运动后的氧和在60°/s时显著改善 (p<0.01).
- 在IPC和对照条件之间,没有发现扭矩,平均功率,EMG活性或氧化水平的显著差异.
结论:
- 缺血预调可以提高更高速度的总工作输出,并减少肘部曲期间的肌肉疲劳.
- 由于EMG没有变化,这表明IPC的好处可能来自于外围而不是神经肌肉的适应.
- IPC为优化力量和恢复提供了一个可行的策略,特别是在取决于速度的运动运动中.
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