Conducting Wave Analysis of Temporal Changes in Multi-Channel Surface EMG for Estimation of Mobilized Muscle Fibers

IF 0.4 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Electronics and Communications in Japan Pub Date : 2025-09-11 DOI:10.1002/ecj.12494

Tomohiro Kosuge, Aoi Yamada, Hiroshi Kumagai

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引用次数: 0

Abstract

Skeletal muscle is a collection of motor units (MUs) composed of motoneurons and muscle fibers; muscle contraction is regulated by the number and type of MUs. Since sarcopenia and disuse atrophy are caused by atrophy of specific muscle fiber types, it is important to observe mobilized MUs for skeletal muscle diagnosis. In a previous study, we proposed a method to measure multi-channel surface electromyography (EMG) and quantitatively acquire conducting waves, which are potential waveforms propagating on the muscle surface. The mode of MU mobilization by prolonged muscle contraction is not well known. It is necessary to be able to estimate the mobilized MU over time to diagnose slow muscle fibers and to realize the evaluation of muscle activity during training. This study analyzed the conducting waves of multi-channel surface EMG during prolonged muscle contraction in 20 adult male subjects. The results of the changes in the conducting wave during long-duration muscle contractions at high and low loads showed different characteristics, suggesting the possibility of using the propagating wave to elucidate skeletal muscle.

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多通道表面肌电图时间变化的传导波分析用于估计运动肌纤维

骨骼肌是由运动神经元和肌纤维组成的运动单元的集合；肌肉收缩受小肌的数量和类型的调节。由于骨骼肌减少症和废用性萎缩是由特定类型的肌纤维萎缩引起的，因此观察活动肌对骨骼肌的诊断具有重要意义。在之前的研究中，我们提出了一种测量多通道表面肌电图（EMG）并定量获取传导波的方法，传导波是在肌肉表面传播的电位波形。通过长时间的肌肉收缩来动员MU的模式尚不清楚。为了诊断慢肌纤维，实现对训练过程中肌肉活动的评估，有必要能够估算出随时间的运动MU。本研究分析了20例成年男性肌肉长时间收缩时的多通道表面肌电传导波。在高负荷和低负荷下，传导波在肌肉长时间收缩过程中的变化表现出不同的特征，提示用传导波来解释骨骼肌的可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electronics and Communications in Japan 工程技术-工程：电子与电气

CiteScore

0.60

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Electronics and Communications in Japan (ECJ) publishes papers translated from the Transactions of the Institute of Electrical Engineers of Japan 12 times per year as an official journal of the Institute of Electrical Engineers of Japan (IEEJ). ECJ aims to provide world-class researches in highly diverse and sophisticated areas of Electrical and Electronic Engineering as well as in related disciplines with emphasis on electronic circuits, controls and communications. ECJ focuses on the following fields: - Electronic theory and circuits, - Control theory, - Communications, - Cryptography, - Biomedical fields, - Surveillance, - Robotics, - Sensors and actuators, - Micromachines, - Image analysis and signal analysis, - New materials. For works related to the science, technology, and applications of electric power, please refer to the sister journal Electrical Engineering in Japan (EEJ).