手握收缩模式对肌肉间协调的影响,通过基于波段的EMG-EMG连贯度量化,在2到300Hz之间
Fuyuan Liao1, Liwan Huang2, Pu-Chun Mo2
1Department of Biomedical Engineering, Xi'an Technological University, Xi'an, China.
Medical & biological engineering & computing
|March 25, 2025
概括
这项研究探讨了不同类型的握手运动如何影响肌肉协调. 动态握手练习在较低频率显示出更大的肌肉激活和协调,而同度握手练习在更高频率显示出这一点.
科学领域:
- 生物医学工程 生物医学工程
- 神经科学是一个神经科学.
- 康复科学 康复科学 康复科学
背景情况:
- 手握练习是一种常见的康复技术.
- 之前的研究没有研究不同收缩模式对肌肉间协调的影响.
- 现有的表面电肌图 (EMG) 的连贯性分析往往忽略了60 Hz以上的频率.
研究的目的:
- 评估同度手握 (IHG) 和动态手握 (DHG) 对肌肉间协调的影响.
- 利用基于波段的EMG-EMG连贯性分析,在广泛的频谱 (2300 Hz) 中使用.
主要方法:
- 十六名健康成年人参加了IHG和DHG运动,其最大自愿收缩 (MVC) 为30%.
- 来自四个前臂肌肉的EMG信号被记录下来:柔软指甲表面肌 (FDS),延伸半径肌 (ECR),柔软腹肌 (FCU) 和延伸腹肌 (ECU).
- 波形连贯性被计算为7个频段 (2300 Hz) 的肌肉对.
主要成果:
- IHG和DHG都诱导了肌肉激活和肌肉间协调的明显变化.
- 在25Hz和812Hz频段,DHG导致显著的肌肉激活和连贯性.
- IHG在1535 Hz,3560 Hz和60100 Hz频段中显示出显著的肌肉激活和连贯性,与DHG不同.
结论:
- 手握运动的模式显著影响肌肉激活模式.
- 不同的手握运动模式调节不同频段 (2300 Hz) 的肌肉间协调.
- 波形连贯性分析提供了一个全面的看法的神经肌肉控制在手握任务.
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