Analysis of stiffness changes and factors induced by smart suit with trunk kinetic chain SLIP model
Abstract We are currently developing a suit that assists human running motion based on the Smart Suit (SS). The SS is a wearable assistive device that intervenes in trunk kinetic chain movements by linking trunk rotation to hip flexion and extension through elastic belts. By intervening in the trunk...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-01-01
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| Series: | ROBOMECH Journal |
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| Online Access: | https://doi.org/10.1186/s40648-024-00287-x |
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| author | Hiromu Mori Takayuki Tanaka Akihiko Murai Takashi Kusaka Yumeko Imamura |
| author_facet | Hiromu Mori Takayuki Tanaka Akihiko Murai Takashi Kusaka Yumeko Imamura |
| author_sort | Hiromu Mori |
| collection | DOAJ |
| description | Abstract We are currently developing a suit that assists human running motion based on the Smart Suit (SS). The SS is a wearable assistive device that intervenes in trunk kinetic chain movements by linking trunk rotation to hip flexion and extension through elastic belts. By intervening in the trunk kinetic chain, our goal is to enhance stiffness, thereby improving running economy and speed. The purpose of this study is to acquire fundamental insights into the changes in leg and trunk rotational stiffness induced by the SS, as well as the underlying mechanisms. We defined the SS torque intervention rate $$p_{ss}$$ p ss , which focuses on the magnitude of force, and the peak time difference index, $$e_{lag}$$ e lag , between SS and humans, which focuses on the timing of force, and analyzed the relationship between the stiffness change rate due to SS wearing. The results of the analysis suggest that SS affects human running sensitively rather than mechanically. We also confirmed that the degree of adaptation to SS, assessed by the timing gap between SS exertion and human exertion, contributes significantly to changes in trunk rotation stiffness. |
| format | Article |
| id | doaj-art-3f8268e163eb4452bb20fb69d5abb196 |
| institution | Kabale University |
| issn | 2197-4225 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | ROBOMECH Journal |
| spelling | doaj-art-3f8268e163eb4452bb20fb69d5abb1962025-01-19T12:27:59ZengSpringerOpenROBOMECH Journal2197-42252025-01-0112111010.1186/s40648-024-00287-xAnalysis of stiffness changes and factors induced by smart suit with trunk kinetic chain SLIP modelHiromu Mori0Takayuki Tanaka1Akihiko Murai2Takashi Kusaka3Yumeko Imamura4Graduate School of Information Science and Technology, Hokkaido UniversityFaculty of Information Science and Technology, Hokkaido UniversityHuman Augmentation Research Center, AISTFaculty of Information Science and Technology, Hokkaido UniversityHuman Augmentation Research Center, AISTAbstract We are currently developing a suit that assists human running motion based on the Smart Suit (SS). The SS is a wearable assistive device that intervenes in trunk kinetic chain movements by linking trunk rotation to hip flexion and extension through elastic belts. By intervening in the trunk kinetic chain, our goal is to enhance stiffness, thereby improving running economy and speed. The purpose of this study is to acquire fundamental insights into the changes in leg and trunk rotational stiffness induced by the SS, as well as the underlying mechanisms. We defined the SS torque intervention rate $$p_{ss}$$ p ss , which focuses on the magnitude of force, and the peak time difference index, $$e_{lag}$$ e lag , between SS and humans, which focuses on the timing of force, and analyzed the relationship between the stiffness change rate due to SS wearing. The results of the analysis suggest that SS affects human running sensitively rather than mechanically. We also confirmed that the degree of adaptation to SS, assessed by the timing gap between SS exertion and human exertion, contributes significantly to changes in trunk rotation stiffness.https://doi.org/10.1186/s40648-024-00287-xSmart SuitTrunk kinetic chainStiffness |
| spellingShingle | Hiromu Mori Takayuki Tanaka Akihiko Murai Takashi Kusaka Yumeko Imamura Analysis of stiffness changes and factors induced by smart suit with trunk kinetic chain SLIP model ROBOMECH Journal Smart Suit Trunk kinetic chain Stiffness |
| title | Analysis of stiffness changes and factors induced by smart suit with trunk kinetic chain SLIP model |
| title_full | Analysis of stiffness changes and factors induced by smart suit with trunk kinetic chain SLIP model |
| title_fullStr | Analysis of stiffness changes and factors induced by smart suit with trunk kinetic chain SLIP model |
| title_full_unstemmed | Analysis of stiffness changes and factors induced by smart suit with trunk kinetic chain SLIP model |
| title_short | Analysis of stiffness changes and factors induced by smart suit with trunk kinetic chain SLIP model |
| title_sort | analysis of stiffness changes and factors induced by smart suit with trunk kinetic chain slip model |
| topic | Smart Suit Trunk kinetic chain Stiffness |
| url | https://doi.org/10.1186/s40648-024-00287-x |
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