Measuring transtibial prosthetic socket-to-residuum interface coupling in gait using 3D motion capture

Baldock, Michael; Gill, Niamh; Howard, David; Curtin, Samantha

Abstract

Fit and function of a prosthetic socket are often reported as the main reason for dissatisfaction within lower-limb amputees [1,2], leading to further reductions in mobility. One way of measuring the performance of a prosthetic socket is through analysing the socket-to-residuum interface coupling, which describes how the prosthesis changes in pose relative to the residuum. Although motion capture currently measures fewer degrees of freedom (DOF) than X-rays, it is predominantly used due to its reduced risk to participants and its ability to analyse dynamic tasks. However, some recent methodologies proposed still require bespoke prosthetic sockets to allow visibility of reflective markers placed on the liner or residuum [3,4]. Tang, et al. [5] removed this requirement by calculating three of DOF of movement of a virtual residuum for a transfemoral amputee.

• Presentation Conference Type: Conference Paper (published)
• Acceptance Date: Jun 8, 2023
• Online Publication Date: Sep 13, 2023
• Publication Date: 2023-09
• Deposit Date: Oct 24, 2023
• Publicly Available Date: Sep 14, 2024
• Journal: Gait & Posture
• Print ISSN: 0966-6362
• Electronic ISSN: 1879-2219
• Publisher: Elsevier
• Volume: 106
• Pages: S17
• DOI: https://doi.org/10.1016/j.gaitpost.2023.07.025
• Keywords: Rehabilitation; Orthopedics and Sports Medicine; Biophysics