快、慢抽搐肌的肌肉声频分析

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991 Pub Date : 1991-10-31 DOI:10.1109/IEMBS.1991.684278

D. Mealing, P. Mccarthy

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引用次数: 14

摘要

记录5名健康受试者口轮匝肌和比目鱼肌在等长收缩时的肌肉声音。信号的频率分析揭示了每种肌肉类型的不同功率谱。比目鱼肌峰值频率为10.8 +/- 3.1 Hz，口轮匝肌峰值频率为22 +/- 5 Hz。结果表明，肌肉声功率谱可以反映纤维类型组成和/或运动单元发射频率。

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Muscle Sound Frequency Analysis From Fast And Slow Twitch Muscle

Muscle sounds were recorded from human orbicularis oris and soleus muscles from 5 healthy subjects during isometric contraction. Frequency analysis of the signals revealed distinct power spectra for each muscle type. The peak frequency for soleus was 10.8 +/- 3.1 and for orbicularis oris was 22 +/- 5 Hz. The results indicate that muscle sound power spectra may reflect fibre type composition and/or motor unit firing frequency .

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Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991

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