Subject: ****The effect of internal and external foot rotation ...[J Sci Med Sport. 2007] - PubMed Result




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1: J Sci Med Sport. 2007 Sep 1. [Epub ahead of print]

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The effect of internal and external foot rotation on the adduction moment and lateral-medial shear force at the knee during gait.

Lynn SK, Kajaks T, Costigan PA.

Queen's University, School Of Kinesiology and Health Studies, Kingston, Ontario, Canada K7L 3N6.

It has been hypothesised that those with medial compartment knee osteoarthritis tend to externally rotate their foot during gait in order to unload the diseased compartment. This has been found to decrease the adduction moment at the knee during late stance, although the effects of foot rotation on shear forces at the knee have not yet been determined. Also, the effects of internal foot rotation on the knee during gait are not clear. This study performed a gait analysis on 11 healthy participants (M: 6; mean age 22.9+/-1.8 years) in three conditions: (1) natural foot rotation position; (2) internal foot rotation and (3) external foot rotation. Three-dimensional gait analysis calculated the knee adduction moment and lateral-medial shear force for all three foot rotation conditions. Internal rotation of the foot increased the knee adduction moment and lateral-medial shear force magnitude during late stance, while external rotation of the foot decreased the magnitude of both these measures. This implies that walking with an externally and internally rotated foot may unload the diseased compartment for those with medial and lateral compartment knee OA, respectively. Also, the relationship of foot rotation angle to the adduction moment and lateral-medial shear force was strengthened when data were corrected for the subject's normal walking condition. Knee OA subject data revealed that they were able to reduce the knee adduction moment more than normal subjects during late stance, indicating that other factors besides the rotation of the foot need to be investigated.

PMID: 17768089 [PubMed - as supplied by publisher]


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Display SummaryBriefAbstractAbstractPlusCitationMEDLINEXMLUI ListLinkOutASN.1Related ArticlesCited in BooksCancerChrom LinksDomain Links3D Domain LinksGEO DataSet LinksGene LinksGene (OMIM) LinksGene (GeneRIF) LinksGenome LinksProject LinksGENSAT LinksGEO Profile LinksHomoloGene LinksNucleotide LinksNucleotide (RefSeq) LinksEST LinksEST (RefSeq) LinksGSS LinksGSS (RefSeq) LinksOMIA LinksOMIM (calculated) LinksOMIM (cited) LinksBioAssay LinksCompound LinksCompound (MeSH Keyword)Compound (Publisher) LinksSubstance LinksSubstance (MeSH Keyword)Substance (Publisher) LinksPMC LinksCited in PMCPopSet LinksProbe LinksProtein LinksProtein (RefSeq) LinksProtein (Weighted) LinksProtein Cluster LinksCited ArticlesSNP LinksStructure LinksTaxonomy via GenBankUniGene LinksUniSTS Links Show 5102050100200500Sort ByPub DateFirst AuthorLast AuthorJournalSend toTextFilePrinterClipboardCollectionsE-mailOrder