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dc.contributor.authorBarber, Leeen_US
dc.contributor.authorBarrett, Roden_US
dc.contributor.authorLichtwark, Glenen_US
dc.date.accessioned2017-05-03T13:05:34Z
dc.date.available2017-05-03T13:05:34Z
dc.date.issued2011en_US
dc.date.modified2011-11-08T08:01:46Z
dc.identifier.issn00219290en_US
dc.identifier.doi10.1016/j.jbiomech.2011.06.008en_AU
dc.identifier.urihttp://hdl.handle.net/10072/41440
dc.description.abstractIndividuals with spastic cerebral palsy (SCP) exhibit restricted joint range of motion and increased joint stiffness due to structural alterations of their muscles. Little is known about which muscle-tendon structures are responsible for these alterations. The aim of this study was to compare the passive mechanics of the ankle joint and medial gastrocnemius (MG) muscle in young adults with SCP and typically developed (TD) individuals. Nine ambulant SCP (17Რyears) and ten TD individuals (18Რyears) participated in the study. Physiological cross sectional area was estimated using freehand 3D ultrasound and found to be 37% lower in the SCP group. An isokinetic dynamometer rotated the ankle through its range while joint torque and ultrasound images of the MG muscle fascicles were simultaneously measured. Mean ankle stiffness was found to be 51% higher and mean MG fascicle strain 47% lower in the SCP group. Increased resistance to passive ankle dorsiflexion in SCP appears to be related to the inability of MG muscle fascicles to elongate with increased force.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherElsevieren_US
dc.publisher.placeUnited Kingdomen_US
dc.relation.ispartofstudentpublicationYen_AU
dc.relation.ispartofpagefrom2496en_US
dc.relation.ispartofpageto2500en_US
dc.relation.ispartofissue13en_US
dc.relation.ispartofjournalJournal of Biomechanicsen_US
dc.relation.ispartofvolume44en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchBiomechanicsen_US
dc.subject.fieldofresearchcode110601en_US
dc.titlePassive muscle mechanical properties of the medial gastrocnemius in young adults with spastic cerebral palsyen_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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