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dc.contributor.authorWinby, C.en_US
dc.contributor.authorLloyd, D.en_US
dc.contributor.authorBesier, T.en_US
dc.contributor.authorKirk, T.en_US
dc.date.accessioned2017-05-03T15:56:54Z
dc.date.available2017-05-03T15:56:54Z
dc.date.issued2009en_US
dc.date.modified2011-08-24T07:14:13Z
dc.identifier.issn00219290en_US
dc.identifier.doi10.1016/j.jbiomech.2009.06.019en_AU
dc.identifier.urihttp://hdl.handle.net/10072/40263
dc.description.abstractLarge knee adduction moments during gait have been implicated as a mechanical factor related to the progression and severity of tibiofemoral osteoarthritis and it has been proposed that these moments increase the load on the medial compartment of the knee joint. However, this mechanism cannot be validated without taking into account the internal forces and moments generated by the muscles and ligaments, which cannot be easily measured. Previous musculoskeletal models suggest that the medial compartment of the tibiofemoral joint bears the majority of the tibiofemoral load, with the lateral compartment unloaded at times during stance. Yet these models did not utilise explicitly measured muscle activation patterns and measurements from an instrumented prosthesis which do not portray lateral compartment unloading. This paper utilised an EMG-driven model to estimate muscle forces and knee joint contact forces during healthy gait. Results indicate that while the medial compartment does bear the majority of the load during stance, muscles provide sufficient stability to counter the tendency of the external adduction moment to unload the lateral compartment. This stability was predominantly provided by the quadriceps, hamstrings, and gastrocnemii muscles, although the contribution from the tensor fascia latae was also significant. Lateral compartment unloading was not predicted by the EMG-driven model, suggesting that muscle activity patterns provide useful input to estimate muscle and joint contact forces.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherElsevier Ltden_US
dc.publisher.placeUnited Kingdomen_US
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrom2294en_US
dc.relation.ispartofpageto2300en_US
dc.relation.ispartofissue14en_US
dc.relation.ispartofjournalJournal of Biomechanicsen_US
dc.relation.ispartofvolume42en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchBiomechanicsen_US
dc.subject.fieldofresearchcode110601en_US
dc.titleMuscle and external load contribution to knee joint contact loads during normal gaiten_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.date.issued2009
gro.hasfulltextNo Full Text


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