Conducting Waves using Multi-channel Surface EMG
Conducting Waves using Multi-channel Surface EMG
复制标题
使用多通道表面肌电图传导波
DOI：
10.1541/ieejeiss.134.390
复制
发表时间：
2014
影响因子：
--
通讯作者：
K. Mito
中科院分区：
文献类型：
--
作者：
T. Kosuge;N. Itakura;K. Mito
Muscular activity is investigated by analyzing the action potential in muscle fiber, primarily in the field of clinical medicine and sports science. These potentials and the conduction velocity of potentials, i.e., the muscle fiber conduction velocity (MFCV), is measured by needle electrodes to analyze the activity of muscle fiber, and recent studies have measured it by surface electromyography rather than using needles. The surface electromyogram (EMG) is mainly used to analyze the frequency and amplitude of EMG signals, for example for examining muscle fatigue. Surface EMG is recorded as an interference wave of action potential that is generated by some of motor units in muscle. If composition of the interference wave can be analyzed, we may be able to examine the mechanism of muscular contraction, for example activity of muscle fiber. Previous study have analyzed multi-channel surface EMG, calculating conduction velocity and comparing waveform subjectively between two channels of surface EMG. However, to analyze the muscular contraction mechanism we should examine conduction of surface EMG quantitatively over multiple channels. In this thesis, we proposed a new method to analyze the surface EMG. The proposed method involves searching conducting wave quantitatively which mean similar waveforms considered same wave appearing during several channels by using multi-channel surface EMG. To use the method, we can examine various data of each conducting wave, including conduction velocity and amplitude, over channels. To examine conducting waves, we can find the possibility to elucidate which types of muscle fiber working. This method is referred to as the multi-channel method for conducting waves (m-ch method). We analyzed multi-channel surface EMG measured in various states of muscular contraction by using the proposed method. The contents of this thesis are summarized as shown below: [1] The introduction of the study of EMG and problems of recent study is explained. And the necessity of the new method for analyzing multi-channel surface EMG is insisted. [2] The mechanism of muscular activity and the basic information of EMG are described. [3] The m-ch method is proposed. The advantage of this method is explained, including comparison with the previous method. [4] We measured the multi-channel surface EMG of the biceps brachii muscle which acting isometric contraction and analyzed it using m-ch method. We could find differences in conducting waves affected by time progress and differences of loads. [5] We measured the multi-channel surface EMG which acting isotonic contraction and analyzed it using m-ch method. We found the m-ch method was able to use to analyze the isotonic contraction. [6] We applied the m-h method to the evaluation of muscular workout. The change of muscle fiber performing was shown comparing conducting waves generated each terms. [7] Finally, achievements and challenges of this study are summarized. 多チャンネル表面筋電図を用いた 伝播波解析に関する研究
DOI：
--
发表时间：
1999
期刊：
Trans.IEE of Japan Vol.124-C, No.2
影响因子：
--
作者：
Yoshiaki Hara
通讯作者：
Yoshiaki Hara