Distribution of Muscle Fiber Conduction velocity of M. Biceps Brachii During Voluntary Isometric Contraction with Use of Surface Array Electrodes
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概要
- 論文の詳細を見る
Surface electromyogram (EMG) was recorded in m.biceps brachii during the contractions of 20, 40 and 60% of maximum voluntary isometric contraction (MVC)in twelve healthy male subjects, using surface array electrodes. The distribution of muscle fiber conduction velocity (MFCV) was found directly using the averaging technique and the cross-correlation function technique. MFCV_S in the region of 20〜45 mm measured from end-plate denoted constant value of about 4 m/s in 20% MVC, while MFCV_S in the region around end-plate and tendons showed about 10 m/s in 20% MVC.The values of MFCV depended on the contraction levels of muscle.The model for the generation of MFCV which considered the ensemble of muscle fibers with the shape of a cone was proposed. The theoretical values of MFCV by the muscle fiber ensemble model (MFE model) proposed in the paper showed in good agreement with the experimental results.
- 日本生理人類学会の論文
著者
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Li Weiqiang
Department Of Communications And Systems The University Of Electro-communication
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Sakamoto Kazuyoshi
Department Of Communications And Systems Engineering The University Of Electro-communications
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