Presentation 2022-03-02
Stability of muscle synergy patterns for sit-to-stand motions under different conditions
Julian Ilham, Yuichi Nakamura, Kazuaki Kondo, Takahide Ito, Qi An, Junichi Akita, Masashi Toda,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Sit-to-stand (STS) is one of important motions in daily life. The analysis of STS is important not only for the rehabilitation but also external supports, for instance, lower limb exoskeleton is required in helping a disable person to perform STS motion. Adequate signal is mandatory to proper motion of exoskeleton actuators. In this study, we investigated muscle synergy approach to obtain stable characteristic of STS motions throughout various conditions. We first examined the stability of spatial patterns using concatenated EMG signals over trials; and then we compared temporal patterns in different trials. The examination was continued to evaluate the patterns stability across days. Our preliminary results show that our method obtains higher similarities of temporal patterns than synergy calculation for every single trial red and yields better stability of spatial patterns across days.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) sit-to-standstabilityelectromyogrammuscle synergyvarious conditions
Paper # MBE2021-88
Date of Issue 2022-02-23 (MBE)

Conference Information
Committee MBE / NC
Conference Date 2022/3/2(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Ryuhei Okuno(Setsunan Univ.) / Rieko Osu(Waseda Univ.)
Vice Chair Junichi Hori(Niigata Univ.) / Hiroshi Yamakawa(Univ of Tokyo)
Secretary Junichi Hori(Osaka Electro-Communication Univ) / Hiroshi Yamakawa(ATR)
Assistant Jun Akazawa(Meiji Univ. of Integrative Medicine) / Emi Yuda(Tohoku Univ) / Nobuhiko Wagatsuma(Toho Univ.) / Tomoki Kurikawa(KMU)

Paper Information
Registration To Technical Committee on ME and Bio Cybernetics / Technical Committee on Neurocomputing
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Stability of muscle synergy patterns for sit-to-stand motions under different conditions
Sub Title (in English)
Keyword(1) sit-to-standstabilityelectromyogrammuscle synergyvarious conditions
1st Author's Name Julian Ilham
1st Author's Affiliation Kyoto University(Kyoto Univ.)
2nd Author's Name Yuichi Nakamura
2nd Author's Affiliation Kyoto University(Kyoto Univ.)
3rd Author's Name Kazuaki Kondo
3rd Author's Affiliation Kyoto University(Kyoto Univ.)
4th Author's Name Takahide Ito
4th Author's Affiliation Kyoto University(Riken/Kyoto Univ.)
5th Author's Name Qi An
5th Author's Affiliation Kyushu University(Kyushu Univ.)
6th Author's Name Junichi Akita
6th Author's Affiliation Kanazawa University(Kanazawa Univ.)
7th Author's Name Masashi Toda
7th Author's Affiliation Kumamoto University(Kumamoto Univ)
Date 2022-03-02
Paper # MBE2021-88
Volume (vol) vol.121
Number (no) MBE-389
Page pp.pp.5-8(MBE),
#Pages 4
Date of Issue 2022-02-23 (MBE)