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dc.contributor.authorBarber, Leeen_US
dc.contributor.authorBarrett, Roden_US
dc.contributor.authorLichtwark, Glenen_US
dc.date.accessioned2017-04-04T17:05:48Z
dc.date.available2017-04-04T17:05:48Z
dc.date.issued2011en_US
dc.date.modified2011-09-22T06:52:16Z
dc.identifier.issn14697580en_US
dc.identifier.doi10.1111/j.1469-7580.2011.01365.xen_AU
dc.identifier.urihttp://hdl.handle.net/10072/40958
dc.description.abstractFixed shortening of a muscle, or contracture, often develops in individuals with an upper motor neuron disorder. A clinical measure of muscle length would therefore be useful for identifying the presence of muscle contracture, tracking changes over time and evaluating the effect of interventions. This study compared a novel ultrasound-tape length method with a previously validated freehand 3D ultrasound method for measuring muscle length. The ultrasound-tape method intra-session reliability was also assessed. Resting medial gastrocnemius muscle length was measured at three ankle joint angles in 15 typically developed (TD) adults and nine adults with cerebral palsy (CP) using the two methods. The ultrasound-tape method on average overestimated the muscle length in the TD group by < 0.1% (95% CI, 6%) and underestimated in the muscle length in the CP group by 0.1% (95% CI, 6%) compared with the 3D ultrasound method. Intra-session reliability of the ultrasound- tape method was high, with intra-class correlation coefficients > 0.99. The ultrasound-tape method has sufficient accuracy to detect clinically relevant differences and changes in medial gastrocnemius muscle length and may therefore be a useful clinical tool for assessing muscle length changes associated with contracture. Key words: acquired brain injury; cerebral palsy; muscle contracture; muscle length; spasticity; spinal injury; stroke; traumatic brain injury; ultrasound.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherWiley-Blackwell Publishingen_US
dc.publisher.placeUnited Kingdomen_US
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrom637en_US
dc.relation.ispartofpageto642en_US
dc.relation.ispartofissue6en_AU
dc.relation.ispartofjournalJournal of Anatomyen_US
dc.relation.ispartofvolume218en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchBiomechanicsen_US
dc.subject.fieldofresearchcode110601en_US
dc.titleValidity and reliability of a simple ultrasound approach to measure medial gastrocnemius muscle lengthen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.date.issued2011
gro.hasfulltextNo Full Text


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