Comparative roll-over analysis of prosthetic feet |
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| Authors: | Carolin Curtze At L. Hof Helco G. van Keeken Jan P.K. Halbertsma Klaas Postema Bert Otten |
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| Affiliation: | 1. Northwestern University Prosthetics-Orthotics Center, Northwestern University, Chicago, USA;2. Centre for Health Sciences Research, University of Salford, Greater Manchester, UK;3. UNIPOD — United National Institute for Prosthetics & Orthotics Development, University of Salford, Greater Manchester, UK;1. Ottawa Hospital Research Institute, Centre for Rehabilitation Research and Development, Ottawa, Canada;2. Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia;3. Faculty of Medicine, University of Ottawa, Canada;4. Bloorview Research Institute, Holland Bloorview Kid''s Rehabilitation Hospital, Toronto, Canada |
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| Abstract: | A prosthetic foot is a key element of a prosthetic leg, literally forming the basis for a stable and efficient amputee gait. We determined the roll-over characteristics of a broad range of prosthetic feet and examined the effect of a variety of shoes on these characteristics. The body weight of a person acting on a prosthetic foot during roll-over was emulated by means of an inverted pendulum-like apparatus. Parameters measured were the effective radius of curvature, the forward travel of the center of pressure, and the instantaneous radius of curvature of the prosthetic feet. Finally, we discuss how these parameters relate to amputee gait. |
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