表面肌电图信号的分解与力产生之间的关系:分析强度运动后的恢复
Manoela Vieira Sousa1,2, Jose Ignacio Priego-Quesada3, Klaus M Becker1,2
1Center of Research, Education, Innovation and Intervention in Sport, Faculty of Sport, University of Porto, Porto, Portugal.
Journal of applied biomechanics
|February 19, 2026
概括
在强烈的膝盖运动后,肌肉力量的恢复在48小时后是不完整的. 横向巨大的运动单元动作潜能幅度对于运动后的肌肉恢复至关重要.
科学领域:
- 运动生理学 运动生理学
- 神经肌肉生理学 神经肌肉生理学
- 运动科学 运动科学 运动科学
背景情况:
- 了解强度运动后的肌肉恢复机制对于优化训练和康复至关重要.
- 之前的研究已经探索了各种生理和生物力学标记,但神经肌肉,生物力学和感知反应之间的相互作用需要进一步调查.
研究的目的:
- 为了研究神经肌肉,生物力学,生理学和感知标记在强烈的膝盖运动恢复期间之间的关系.
- 确定肌肉恢复的关键指标和延迟恢复的潜在预测因素.
主要方法:
- 十一名参与者接受了一项强烈的膝盖炼方案,涉及最大同度和同心-异心收缩.
- 神经肌肉 (运动单元动作潜能幅度[MUAP],发射率,招募值),生物力学 (力量损失),生理 (皮肤温度) 和感知 (肌肉疼痛的延迟开始) 标记在运动后的0,24小时和48小时被评估.
- 在运动期间进行了电肌图信号分解和皮肤温度测量.
主要成果:
- 在所有运动后的时间点,力量生产 (同度,动态,工作) 都显著减少.
- 肌肉疼痛的延迟发作在运动后24小时和48小时增加.
- 在0小时的动力力损失和巨大的横向MUAP之间,以及在24小时的动力峰值扭矩和巨大的横向MUAP之间,发现了积极的相关性.
- 还观察到火速/招募值和皮肤温度之间的相关性.
结论:
- 强烈的膝盖运动后48小时内,肌肉力量的完全恢复并未实现.
- 巨大的横向肌肉的运动单元动作潜能幅度似乎在肌肉恢复过程中发挥着重要作用.
- 这些发现凸显了紧张炼后神经肌肉和生物机械缺陷的长期性质.
相关概念视频
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