Functional Muscle Synergies Invariant Across Human Gaits
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- TOMINAGA Kenta
- Graduate School of Engineering Science, Osaka University
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- IIMURA Taiki
- Hitachi, Ltd., Research & Development Group
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- UEMURA Mitsunori
- Graduate School of Engineering Science, Osaka University
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- HIRAI Hiroaki
- Graduate School of Engineering Science, Osaka University
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- MIYAZAKI Fumio
- Graduate School of Engineering Science, Osaka University
Bibliographic Information
- Other Title
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- ヒトの下肢運動にかかわる不変量としての筋シナジー
- ヒト ノ カシ ウンドウ ニ カカワル フヘンリョウ ト シテ ノ キン シナジー
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Abstract
The problem of motor redundancy has been known as the Bernstein problem. This paper investigates the problem in motor control from the viewpoint of functional cooperativeness of muscles through a novel concept so called the “A-A ratio” and “A-A sum”. The former is defined as a normalized electromyogrphic (EMG) ratio of agonist-antagonist muscle pairs, whereas their nomalized EMG sum. We then apply a muscle synergy extraction method based on a physical model to EMG signals during human lower movements such as walking and running. The muscle synergy analysis specifies that muscle activities during these human lower movements can be described as a superposition of two muscle synergies invariant across subjects and across tasks. Furthermore we characterized the kinematic motor functions of the extracted muscle synergies. These findings indicate flexibility of muscle synergies across various tasks.
Journal
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- Transactions of the Society of Instrument and Control Engineers
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Transactions of the Society of Instrument and Control Engineers 52 (1), 37-45, 2016
The Society of Instrument and Control Engineers
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Details 詳細情報について
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- CRID
- 1390001204509917696
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- NII Article ID
- 130005122187
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- NII Book ID
- AN00072392
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- ISSN
- 18838189
- 04534654
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- NDL BIB ID
- 027081843
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed