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dc.contributor.authorWinby, C.
dc.contributor.authorGerus, P.
dc.contributor.authorKirk, Brett
dc.contributor.authorLloyd, D.
dc.date.accessioned2017-01-30T14:33:57Z
dc.date.available2017-01-30T14:33:57Z
dc.date.created2014-03-20T20:00:39Z
dc.date.issued2013
dc.identifier.citationWinby, C. and Gerus, P. and Kirk, T. and Lloyd, D. 2013. Correlation between EMG-based co-activation measures and medial and lateral compartment loads of the knee during gait. Clinical Biomechanics. 28 (9-10): pp. 1014-1019.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/39448
dc.identifier.doi10.1016/j.clinbiomech.2013.09.006
dc.description.abstract

Background: Inappropriate tibiofemoral joint contact loading during gait is thought to contribute to the development of osteoarthritis. Increased co-activation of agonist/antagonist pair of muscles during gait has commonly been observed in pathological populations and it is thought that this results in increased articular loading and subsequent risk of disease development. However, these hypotheses assume that there is a close relationship between muscle electromyography and force production, which is not necessarily the case. Methods: This study investigated the relationship between different electromyography-based co-activation measures and articular loading during gait using an electromyography-driven model to estimate joint contact loads. Findings: The results indicated that significant correlations do exist between selected electromyography-based activity measures and articular loading, but these are inconsistent and relatively low. However despite this, it was found that it may still be possible to use carefully selected measures of muscle activation in conjunction with external adduction moment measures to account for up to 50% of the variance in medial and lateral compartment loads. Interpretation: The inconsistency in correlations between many electromyography-based co-activation measures and articular loading still highlights the danger of inferring joint contact loads during gait using these measures. These results suggest that some form of electromyography-driven modelling is required to estimate joint contact loads in the tibiofemoral joint.

dc.publisherPergamon
dc.subjectCo-activation
dc.subjectJoint loads
dc.subjectGait
dc.subjectEMG-driven modelling
dc.titleCorrelation between EMG-based co-activation measures and medial and lateral compartment loads of the knee during gait
dc.typeJournal Article
dcterms.source.volume28
dcterms.source.number9-10
dcterms.source.startPage1014
dcterms.source.endPage1019
dcterms.source.issn02680033
dcterms.source.titleClinical Biomechanics
curtin.department
curtin.accessStatusFulltext not available


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