| Presentation | 2015-12-19 A musculoskeletal model-based estimation of shoulder muscle forces during the elevation of the upper arm in the coronal plane Yosuke Fujii, Toyohiko Hayashi, Shigehito Tanahashi, Hiroshi Tanaka, Hiroki Ninomiya, Hiroaki Inui, Masahiko Komai, Katsuya Nobuhara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Since the glenohumeral joint is unstable due to less support of bones, its stability is believed to be reinforced by the coordinative activities of the shoulder muscles. Then their activities have been analyzed by means of computer simulation, using a musculoskeletal model of the shoulder, due to the difficulty of electro-myographic analysis. We also have been studied their activities during the elevation of the upper arm in the scapular plane, using a precise musculoskeletal model and a movement model, both of which were made from MRI images of subject's shoulder, as well as a muscle model. In this study, we estimated muscle activities during the abduction in the coronal plane as well as the scapular plane in order to clarify the difference in muscle activities between the two movements. Empirical results demonstrated that 1) during the abduction in the scapular plane, the infraspinatus and subscapularis muscles antagonized with each other were activated simultaneously, while the supraspinatus and the intermediate portion of deltoid worked dominantly for abduction; 2) during the abduction in the coronal plane, on the other hand, the activities of the infraspinatus increased relative to that of the subscapularis for horizontal abduction, while the activities of supraspinatus decreased probably due to the modification of its route, accordingly activating the intermediate portion of the deltoid further for compensation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | shoulder / musculoskeletal model / computer simulation / estimation of muscle force |
| Paper # | MBE2015-71 |
| Date of Issue | 2015-12-12 (MBE) |
| Conference Information | |
| Committee | MBE / NC |
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| Conference Date | 2015/12/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Institute of Technology |
| 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) | A musculoskeletal model-based estimation of shoulder muscle forces during the elevation of the upper arm in the coronal plane |
| Sub Title (in English) | |
| Keyword(1) | shoulder |
| Keyword(2) | musculoskeletal model |
| Keyword(3) | computer simulation |
| Keyword(4) | estimation of muscle force |
| 1st Author's Name | Yosuke Fujii |
| 1st Author's Affiliation | Niigata University(Niigata Univ.) |
| 2nd Author's Name | Toyohiko Hayashi |
| 2nd Author's Affiliation | Niigata University(Niigata Univ.) |
| 3rd Author's Name | Shigehito Tanahashi |
| 3rd Author's Affiliation | Niigata University(Niigata Univ.) |
| 4th Author's Name | Hiroshi Tanaka |
| 4th Author's Affiliation | Nobuhara Hospital and Institute of Biomechanics(Nobuhara Hospital) |
| 5th Author's Name | Hiroki Ninomiya |
| 5th Author's Affiliation | Nobuhara Hospital and Institute of Biomechanics(Nobuhara Hospital) |
| 6th Author's Name | Hiroaki Inui |
| 6th Author's Affiliation | Nobuhara Hospital and Institute of Biomechanics(Nobuhara Hospital) |
| 7th Author's Name | Masahiko Komai |
| 7th Author's Affiliation | Nobuhara Hospital and Institute of Biomechanics(Nobuhara Hospital) |
| 8th Author's Name | Katsuya Nobuhara |
| 8th Author's Affiliation | Nobuhara Hospital and Institute of Biomechanics(Nobuhara Hospital) |
| Date | 2015-12-19 |
| Paper # | MBE2015-71 |
| Volume (vol) | vol.115 |
| Number (no) | MBE-383 |
| Page | pp.pp.49-54(MBE), |
| #Pages | 6 |
| Date of Issue | 2015-12-12 (MBE) |