| Presentation | 2015-11-20 Muscle synergy recruitment during arm movements in patients with hemiparesis Toshihiro Kawase, Atsuko Nishimura, Atsuko Nishimoto, Fumio Liu, Hiroyuki Kambara, Natsue Yoshimura, Yasuharu Koike, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Previous studies have suggested that many muscles in the human body are controlled by combination of fewer muscle synergies. In this study, we estimated muscle synergies from electromyography measured during peg-movement tasks executed by able-bodied subjects and patients with hemiparesis by using nonnegative matrix factorization, and classified the synergies by using a hierarchical clustering method. As a result, the muscle synergies were roughly classified into seven groups by their patterns, and some groups had subgroups that showed high levels of cocontraction observed in patients with hemiparesis. Additionally, we observed a case in which an able-bodied subject and a patient shared similar muscle synergies and adjust its recruitment differently according to targets. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Hemiparesis / Muscle synergy / Electromyography / Nonnegative matrix factorization / Hierarchical clustering |
| Paper # | NC2015-38 |
| Date of Issue | 2015-11-13 (NC) |
| Conference Information | |
| Committee | MBE / NC |
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| Conference Date | 2015/11/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tetsuo Kobayashi(Kyoto Univ.) / Toshimichi Saito(Hosei Univ.) |
| Vice Chair | Yutaka Fukuoka(Kogakuin Univ.) / Shigeo Sato(Tohoku Univ.) |
| Secretary | Yutaka Fukuoka(akita noken) / Shigeo Sato(Kogakuin Univ.) |
| Assistant | Takenori Oida(Kyoto Univ.) / Ryota Horie(Shibaura Inst. of Tech.) / Hiroyuki Kanbara(Tokyo Inst. of Tech.) / Hisanao Akima(Tohoku Univ.) |
| Paper Information | |
| Registration To | Technical Committee on ME and Bio Cybernetics / Technical Committee on Neurocomputing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Muscle synergy recruitment during arm movements in patients with hemiparesis |
| Sub Title (in English) | |
| Keyword(1) | Hemiparesis |
| Keyword(2) | Muscle synergy |
| Keyword(3) | Electromyography |
| Keyword(4) | Nonnegative matrix factorization |
| Keyword(5) | Hierarchical clustering |
| 1st Author's Name | Toshihiro Kawase |
| 1st Author's Affiliation | Tokyo Institute of Technology(Tokyo Inst. of Tech.) |
| 2nd Author's Name | Atsuko Nishimura |
| 2nd Author's Affiliation | Keio University(Keio Univ.) |
| 3rd Author's Name | Atsuko Nishimoto |
| 3rd Author's Affiliation | Keio University(Keio Univ.) |
| 4th Author's Name | Fumio Liu |
| 4th Author's Affiliation | Keio University(Keio Univ.) |
| 5th Author's Name | Hiroyuki Kambara |
| 5th Author's Affiliation | Tokyo Institute of Technology(Tokyo Inst. of Tech.) |
| 6th Author's Name | Natsue Yoshimura |
| 6th Author's Affiliation | Tokyo Institute of Technology(Tokyo Inst. of Tech.) |
| 7th Author's Name | Yasuharu Koike |
| 7th Author's Affiliation | Tokyo Institute of Technology(Tokyo Inst. of Tech.) |
| Date | 2015-11-20 |
| Paper # | NC2015-38 |
| Volume (vol) | vol.115 |
| Number (no) | NC-318 |
| Page | pp.pp.13-18(NC), |
| #Pages | 6 |
| Date of Issue | 2015-11-13 (NC) |