Modified walking shoes for knee osteoarthritis: Mechanisms for reductions in the knee adduction moment

CO Kean; KL Bennell; TV Wrigley; RS Hinman

Journal article

Modified walking shoes for knee osteoarthritis: Mechanisms for reductions in the knee adduction moment

CO Kean, KL Bennell, TV Wrigley, RS Hinman

Journal of Biomechanics | Published : 2013

DOI: 10.1016/j.jbiomech.2013.05.011

Abstract

The objective of this study was to examine mechanisms underpinning the reduction in knee adduction moment (KAM) and changes in frontal plane knee-ground reaction force (GRF) lever arm with a modified shoe that incorporates both a variable-stiffness sole and lateral wedging. Thirty individuals with symptomatic knee osteoarthritis (OA) and 30 overweight asymptomatic individuals underwent gait analyses wearing modified and standard shoes. In both groups, there was a decrease in the lever arm (p < 0.001), and a lateral shift in the center of pressure (COP) offset (p ≤ 0.001). There was no change in frontal plane or medial-lateral GRF magnitudes, lateral trunk lean or stance duration in either gr..

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University of Melbourne Researchers

Kim Bennell Author

Rana Hinman Author

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Grants

Awarded by Australian Research Council

Awarded by National Health and Medical Research Council Grant (NHMRC)

Funding Acknowledgements

This study was funded by an Australian Research Council Linkage Grant (#LP0990671) with ASICS Oceania Pty. Ltd. providing funds as the industry partner and a National Health and Medical Research Council Grant (NHMRC #631717). The industry partner (Asics Oceania Pty., Ltd.) had no role in the study design or in the collection, analysis, or interpretation of the data, the writing of the manuscript, or the decision to submit the manuscript for publication. Publication of this article was not contingent upon approval by Asics Oceania Pty., Ltd. Kim Bennell, Rana Hinman and Tim Wrigley will receive royalties from the shoe. Kim Bennell is partly supported by an Australian Research Council Future Fellowship.