Mehryar, P, Shourijeh, MS, Maqbool, HF orcid.org/0000-0003-3193-4984 et al. (2 more authors) (2016) Muscle Synergy Analysis in Transtibial Amputee during Ramp Ascending Activity. In: 38th IEEE Annual International Conference of the Engineering in Medicine and Biology Society (EMBC 2016). EMBC 2016, 16-20 Aug 2016, Orlando, Fla., USA. IEEE ISBN 978-1-4577-0220-4
Abstract
In developed countries, the highest number of amputees are elderly with transtibial amputation. Walking on inclined surfaces is difficult for amputees due to loss of muscle volume and strength thereby transtibial amputees (TA) rely on the intact limb to maintain stability. The aim of this study was to use the concatenated non-negative matrix factorization (CNMF) technique to calculate muscle synergy components and compare the difference in muscle synergies and their associated activation profiles in the healthy and amputee groups during ramp ascending (RA) activity. Healthy subjects' dominant leg and amputee's intact leg (IL) were considered for recording surface electromyography (sEMG). The muscle synergies comparison showed a reasonable correlation between the healthy and amputee groups. This suggests the central nervous system (CNS) activates the same group of muscles synergistically. However, the activation coefficient profile (C) results indicated statistically significant difference (p <; 0.05) in some parts of the gait cycle (GC) in healthy and amputee groups. The difference exhibited in activation profiles of amputee's IL could be due to the instability of the prosthetic leg during the GC which resulted in alteration of the IL muscles activations. This information will be useful in rehabilitation and in the future development of prosthetic devices by using the IL muscles information to control the prostheses.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2016, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Keywords: | Muscles, Legged locomotion, Electromyography, Prosthetics, Radio frequency, Correlation, Senior citizens |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Engineering Systems and Design (iESD) (Leeds) |
Funding Information: | Funder Grant number EPSRC EP/K020463/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 04 Aug 2016 08:50 |
Last Modified: | 12 Apr 2017 06:23 |
Published Version: | https://doi.org/10.1109/EMBC.2016.7591037 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/EMBC.2016.7591037 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:102497 |