2023 Fiscal Year Final Research Report
A Method for Detailed Muscle State Analysis Based on Real-Time Redundant Wavelet Analysis of Surface Electromyography and Its Applications
| Project/Area Number |
19K12205
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 62010:Life, health and medical informatics-related
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
Nagai Hidetoshi 九州工業大学, 大学院情報工学研究院, 助教 (60237485)
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| Project Period (FY) |
2019-04-01 – 2024-03-31
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| Keywords | 表面筋電 / 運動単位 / 冗長離散ウェーブレット解析 / ウェーブレット係数集合 |
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| Outline of Final Research Achievements |
A motor unit is a bundle of muscle fibers innervated by a single nerve. Muscle is composed of many motor units, and the activity of these motor units is the basic unit of muscle activity. Therefore, muscle activity should be analyzed from the viewpoint of motor unit activity, but conventional techniques have not been able to capture motor unit activity during exercise.
In this study, although it was not possible to identify individual motor units, we succeeded in capturing the motor unit activity from a single-channel surface EMG signal. This achievement enables the evaluation of muscle activity based on motor unit activity.
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| Free Research Field |
表面筋電信号の解析とその応用
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| Academic Significance and Societal Importance of the Research Achievements |
医学やスポーツ科学の他，筋電義手等の工学応用において筋の状態や活動を捉えることは重要である．従来は筋疲労や負荷の増大による筋活動の変化を表面筋電の振幅のような抽象的特徴で捉えるしかなかったが，本研究により筋活動の根幹たる運動単位活動を侵襲のない表面筋電でリアルタイムに捉えて分析できるようになったことで，筋疲労や負荷増大に対する運動単位活動の変化に基づいて筋の疲労や発揮力などをより精緻に分析，評価することを可能とした．
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