Abouhossein, A orcid.org/0000-0001-8697-1593, Awad, MI orcid.org/0000-0002-0367-0187, Crisp, C et al. (6 more authors) (2016) Effect of Different Prosthetic Knees/feet on the Roll-Over Shape. In: 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 17-20 Aug 2016, Orlando, Florida, USA.
Abstract
Roll-over shape (ROS) of knee-ankle-foot (KAF) is a scientific method which has been used to compare performance and design of the different prosthetic foot. In the current study, however, we aimed to understand the influence of the prosthetic components (i.e. knee and foot) on the knee-ankle-foot roll-over shape in a unilateral transfemoral amputee. We performed a case study based on series of experiments with repeated measures on single amputee wearing two different commercially available microprocessor prosthetic knees, during two weeks adaptation period to understand the influence of the prosthetic knee/foot using KAF ROS as an objective measure during level ground walking. The kinematics of the center of pressure (COP), lateral knee and ankle markers were collected and processed to obtain ROS and the results were used to fit a circular shape arc to obtain radius of curvature (ROC). The results indicated that the prosthetic knees have influenced ROC outcomes. The analysis of variance (ANOVA) and post hoc test of the normalized radius of curvature showed the mean of ROC were significantly different between Rheo3 knee, Orion2 and Orion2 with Echelon foot. The amputee reflected his comfort with Rheo3 plus College park foot and Orion with Echelon foot. A conclusion is drawn that multiple comfort zones may exists based on amputee’s ROS metrics. This finding suggests that the design of prosthetic knee should not be considered as a single component but rather as part of a whole system with different comfort zones.
Metadata
Item Type: | Conference or Workshop Item |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This is an author produced version of a poster published in Proceedings of the 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. |
Keywords: | Robotics - prosthetics, Biomechanics and robotics - clinical evaluation in rehabilitation and orthopedics, Modeling and simulation in biomechanics - Prosthetics |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Biological Sciences (Leeds) > School of Biomedical Sciences (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Engineering Systems and Design (iESD) (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Medical and Biological Engineering (iMBE) (Leeds) |
Funding Information: | Funder Grant number EPSRC EP/K020463/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 29 Nov 2016 11:40 |
Last Modified: | 21 Aug 2019 14:28 |
Status: | Published |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:102339 |