3D Motion Analysis for the Assessment of Dynamic Coupling in Transtibial Prosthetics: A Proof of Concept
Assessment of coupling between transtibial sockets and users is historically based on clinicians’ observations and experience, but can be inaccurate and unreliable. Therefore, we present a proof of concept, for five out of six possible degrees of freedom coupling metric system for a socke...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Open Journal of Engineering in Medicine and Biology |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10187672/ |
| _version_ | 1797346283499814912 |
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| author | Sean Cullen Ruth Mackay Amir Mohagheghi Xinli Du |
| author_facet | Sean Cullen Ruth Mackay Amir Mohagheghi Xinli Du |
| author_sort | Sean Cullen |
| collection | DOAJ |
| description | Assessment of coupling between transtibial sockets and users is historically based on clinicians’ observations and experience, but can be inaccurate and unreliable. Therefore, we present a proof of concept, for five out of six possible degrees of freedom coupling metric system for a socket, using motion analysis calibrated on a 3D printed limb substitute. The method is compatible with any socket suspension method and does not require prior modifications to the socket. Calibration trials were used to locate the axis of rotation of the knee joint referenced against a marker cluster on the thigh; this allowed for the identification of the limb during test trials despite the entire residuum being obscured from view by the socket. The error in the technique was found to be within 0.7 mm in displacement and 0.7 degrees in rotation, based on the control data. Dynamic testing showed the Inter Quartile Range (IQR) of inter time step variance was <0.5 mm/deg for all metrics. The method can form a basis for objective socket evaluation, improve clinical practice and the quality of life for amputees. |
| first_indexed | 2024-03-08T11:29:49Z |
| format | Article |
| id | doaj.art-310b45f20833414ea194cd3dc48eae2e |
| institution | Directory Open Access Journal |
| issn | 2644-1276 |
| language | English |
| last_indexed | 2024-03-08T11:29:49Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Engineering in Medicine and Biology |
| spelling | doaj.art-310b45f20833414ea194cd3dc48eae2e2024-01-26T00:02:12ZengIEEEIEEE Open Journal of Engineering in Medicine and Biology2644-12762023-01-01414114710.1109/OJEMB.2023.3296978101876723D Motion Analysis for the Assessment of Dynamic Coupling in Transtibial Prosthetics: A Proof of ConceptSean Cullen0https://orcid.org/0000-0002-9515-9000Ruth Mackay1https://orcid.org/0000-0002-6456-6914Amir Mohagheghi2https://orcid.org/0000-0003-4295-3718Xinli Du3https://orcid.org/0000-0003-2604-0804Department of Mechanical and Aerospace Engineering, College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, U.K.Department of Mechanical and Aerospace Engineering, College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, U.K.Division of Sport, Health & Exercise Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, U.K.Department of Mechanical and Aerospace Engineering, College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, U.K.Assessment of coupling between transtibial sockets and users is historically based on clinicians’ observations and experience, but can be inaccurate and unreliable. Therefore, we present a proof of concept, for five out of six possible degrees of freedom coupling metric system for a socket, using motion analysis calibrated on a 3D printed limb substitute. The method is compatible with any socket suspension method and does not require prior modifications to the socket. Calibration trials were used to locate the axis of rotation of the knee joint referenced against a marker cluster on the thigh; this allowed for the identification of the limb during test trials despite the entire residuum being obscured from view by the socket. The error in the technique was found to be within 0.7 mm in displacement and 0.7 degrees in rotation, based on the control data. Dynamic testing showed the Inter Quartile Range (IQR) of inter time step variance was <0.5 mm/deg for all metrics. The method can form a basis for objective socket evaluation, improve clinical practice and the quality of life for amputees.https://ieeexplore.ieee.org/document/10187672/Dynamic couplingmotion analysispistoningquantitative methodstranstibial prosthetics |
| spellingShingle | Sean Cullen Ruth Mackay Amir Mohagheghi Xinli Du 3D Motion Analysis for the Assessment of Dynamic Coupling in Transtibial Prosthetics: A Proof of Concept IEEE Open Journal of Engineering in Medicine and Biology Dynamic coupling motion analysis pistoning quantitative methods transtibial prosthetics |
| title | 3D Motion Analysis for the Assessment of Dynamic Coupling in Transtibial Prosthetics: A Proof of Concept |
| title_full | 3D Motion Analysis for the Assessment of Dynamic Coupling in Transtibial Prosthetics: A Proof of Concept |
| title_fullStr | 3D Motion Analysis for the Assessment of Dynamic Coupling in Transtibial Prosthetics: A Proof of Concept |
| title_full_unstemmed | 3D Motion Analysis for the Assessment of Dynamic Coupling in Transtibial Prosthetics: A Proof of Concept |
| title_short | 3D Motion Analysis for the Assessment of Dynamic Coupling in Transtibial Prosthetics: A Proof of Concept |
| title_sort | 3d motion analysis for the assessment of dynamic coupling in transtibial prosthetics a proof of concept |
| topic | Dynamic coupling motion analysis pistoning quantitative methods transtibial prosthetics |
| url | https://ieeexplore.ieee.org/document/10187672/ |
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