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Evaluation of gait symmetry in poliomyelitis subjects : Comparison of a conventional knee ankle foot orthosis (KAFO) and a new powered KAFO.

Arazpour, M, Ahmadi, F, Bahramizadeh, M, Samadiam, M, Mousavi, ME, Bani, MA and Hutchins, SW 2016, 'Evaluation of gait symmetry in poliomyelitis subjects : Comparison of a conventional knee ankle foot orthosis (KAFO) and a new powered KAFO.' , Prosthetics and Orthotics International, 40 (6) , pp. 689-695.

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Abstract

Background: Compared to able-bodied subjects, subjects with post polio syndrome and poliomyelitis demonstrate a preference for weight-bearing on the non-paretic limb, causing gait asymmetry. Objectives: The purpose of this study was to evaluate the gait symmetry of the poliomyelitis subjects when ambulating with either a drop- locked knee ankle foot orthosis (KAFO) or a newly developed powered KAFO. Methods: Seven subjects with poliomyelitis who routinely wore conventional KAFOs participated in this study, and received training to enable them to ambulate with the powered KAFO on level ground, prior to gait analysis. Results: There were no significant differences in the gait symmetry index (SI) of step length (P=0.085), stance time (P=0.082), double limb support time (P=0.929) or speed of walking (p=0.325) between the two test conditions. However, using the new powered KAFO improved the SI in step width (P=0.037), swing time (P=0.014), stance phase percentage (P=0.008) and knee flexion during swing phase (p≤0.001) compared to wearing the dropped locked KAFO. Conclusion: The use of a powered KAFO for ambulation by poliomyelitis subjects affects gait symmetry in the base of support, swing time, stance phase percentage and knee flexion during swing phase.

Item Type: Article
Themes: Health and Wellbeing
Schools: Schools > School of Health Sciences
Journal or Publication Title: Prosthetics and Orthotics International
Publisher: Sage
Refereed: No
ISSN: 0309-3646
Related URLs:
Funders: Non funded research
Depositing User: Dr SW Hutchins
Date Deposited: 17 Jun 2015 17:28
Last Modified: 17 Nov 2016 12:57
URI: http://usir.salford.ac.uk/id/eprint/35402

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