Sit-to-walk strategy classification in healthy adults using hip and knee joint angles at gait initiation
Abstract Forward continuation, balance, and sit-to-stand-and-walk (STSW) are three common movement strategies during sit-to-walk (STW) executions. Literature identifies these strategies through biomechanical parameters using gold standard laboratory equipment, which is expensive, bulky, and requires...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-10-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-43148-0 |
| _version_ | 1797453213645930496 |
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| author | Chamalka Kenneth Perera Alpha Agape Gopalai Darwin Gouwanda Siti Anom Ahmad Mazatulfazura Sf Binti Salim |
| author_facet | Chamalka Kenneth Perera Alpha Agape Gopalai Darwin Gouwanda Siti Anom Ahmad Mazatulfazura Sf Binti Salim |
| author_sort | Chamalka Kenneth Perera |
| collection | DOAJ |
| description | Abstract Forward continuation, balance, and sit-to-stand-and-walk (STSW) are three common movement strategies during sit-to-walk (STW) executions. Literature identifies these strategies through biomechanical parameters using gold standard laboratory equipment, which is expensive, bulky, and requires significant post-processing. STW strategy becomes apparent at gait-initiation (GI) and the hip/knee are primary contributors in STW, therefore, this study proposes to use the hip/knee joint angles at GI as an alternate method of strategy classification. To achieve this, K-means clustering was implemented using three clusters corresponding to the three STW strategies; and two feature sets corresponding to the hip/knee angles (derived from motion capture data); from an open access online database (age: 21–80 years; n = 10). The results identified forward continuation with the lowest hip/knee extension, followed by balance and then STSW, at GI. Using this classification, strategy biomechanics were investigated by deriving the established biomechanical quantities from literature. The biomechanical parameters that significantly varied between strategies (P < 0.05) were time, horizontal centre of mass (COM) momentum, braking impulse, centre of pressure (COP) range and velocities, COP–COM separation, hip/knee torque and movement fluency. This alternate method of strategy classification forms a generalized framework for describing STW executions and is consistent with literature, thus validating the joint angle classification method. |
| first_indexed | 2024-03-09T15:18:34Z |
| format | Article |
| id | doaj.art-72bd16ef90274cf5b0c133b70faa1123 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-09T15:18:34Z |
| publishDate | 2023-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-72bd16ef90274cf5b0c133b70faa11232023-11-26T12:55:08ZengNature PortfolioScientific Reports2045-23222023-10-0113111210.1038/s41598-023-43148-0Sit-to-walk strategy classification in healthy adults using hip and knee joint angles at gait initiationChamalka Kenneth Perera0Alpha Agape Gopalai1Darwin Gouwanda2Siti Anom Ahmad3Mazatulfazura Sf Binti Salim4School of Engineering, Monash UniversitySchool of Engineering, Monash UniversitySchool of Engineering, Monash UniversityMalaysian Research Institute on Ageing, Universiti Putra MalaysiaMalaysian Research Institute on Ageing, Universiti Putra MalaysiaAbstract Forward continuation, balance, and sit-to-stand-and-walk (STSW) are three common movement strategies during sit-to-walk (STW) executions. Literature identifies these strategies through biomechanical parameters using gold standard laboratory equipment, which is expensive, bulky, and requires significant post-processing. STW strategy becomes apparent at gait-initiation (GI) and the hip/knee are primary contributors in STW, therefore, this study proposes to use the hip/knee joint angles at GI as an alternate method of strategy classification. To achieve this, K-means clustering was implemented using three clusters corresponding to the three STW strategies; and two feature sets corresponding to the hip/knee angles (derived from motion capture data); from an open access online database (age: 21–80 years; n = 10). The results identified forward continuation with the lowest hip/knee extension, followed by balance and then STSW, at GI. Using this classification, strategy biomechanics were investigated by deriving the established biomechanical quantities from literature. The biomechanical parameters that significantly varied between strategies (P < 0.05) were time, horizontal centre of mass (COM) momentum, braking impulse, centre of pressure (COP) range and velocities, COP–COM separation, hip/knee torque and movement fluency. This alternate method of strategy classification forms a generalized framework for describing STW executions and is consistent with literature, thus validating the joint angle classification method.https://doi.org/10.1038/s41598-023-43148-0 |
| spellingShingle | Chamalka Kenneth Perera Alpha Agape Gopalai Darwin Gouwanda Siti Anom Ahmad Mazatulfazura Sf Binti Salim Sit-to-walk strategy classification in healthy adults using hip and knee joint angles at gait initiation Scientific Reports |
| title | Sit-to-walk strategy classification in healthy adults using hip and knee joint angles at gait initiation |
| title_full | Sit-to-walk strategy classification in healthy adults using hip and knee joint angles at gait initiation |
| title_fullStr | Sit-to-walk strategy classification in healthy adults using hip and knee joint angles at gait initiation |
| title_full_unstemmed | Sit-to-walk strategy classification in healthy adults using hip and knee joint angles at gait initiation |
| title_short | Sit-to-walk strategy classification in healthy adults using hip and knee joint angles at gait initiation |
| title_sort | sit to walk strategy classification in healthy adults using hip and knee joint angles at gait initiation |
| url | https://doi.org/10.1038/s41598-023-43148-0 |
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