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dc.contributor.authorElliott, B
dc.contributor.authorWallis, R
dc.contributor.authorSakurai, S
dc.contributor.authorLloyd, D
dc.contributor.authorBesier, T
dc.date.accessioned2012-11-01
dc.date.accessioned2017-03-01T23:54:18Z
dc.date.available2017-03-01T23:54:18Z
dc.date.issued2002
dc.date.modified2014-10-08T01:43:16Z
dc.identifier.issn0264-0414
dc.identifier.doi10.1080/02640410252925170
dc.identifier.urihttp://hdl.handle.net/10072/63147
dc.description.abstractThe aim of this study was to compare thoracic spine alignment with two-and three-dimensional calculations of shoulder alignment (defined as a line joining the acromion processes of the right and left scapula) when all measures were projected onto the transverse plane. A six-camera Vicon system was used to reconstruct three markers positioned on the plane of the thorax such that the orthogonal vector to the thoracic spine, projected onto the transverse plane, was used as a virtual shoulder alignment during cricket fast bowling. This same measurement system was used to calculate the three-dimensional line between the acromion processes projected onto the transverse plane. These acromion markers were also used to calculate the two-dimensional transverse plane alignment of the shoulders from images recorded by a video camera positioned above ball release. All cameras operated at 50 Hz. A significant association was recorded between thorax alignment and the three- (0.97) and two-dimensional (0.87) shoulder alignment estimations at back-foot impact. The strength of association remained at front-foot impact, when correlations of 0.89 (three-dimensional) and 0.84 (twodimensional) were recorded. However, at ball release, non-significant associations of 0.58 (three-dimensional) and 0.41 (two-dimensional), representing shoulder alignment differences of approximately 10°, were recorded. The 95% limits of agreement comparisons for shoulder alignment at back-foot impact, front-foot impact and ball release produced mean random errors for the two comparisons of 9.5°, 11.7° and 22.5° respectively. Three- and two-dimensional transverse plane projections of shoulder alignment are reasonable estimates of thorax alignment at back-foot impact and front-foot impact but not at ball release.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoen_US
dc.publisherTaylor & Francis Ltd
dc.publisher.placeLondon, UK
dc.relation.ispartofpagefrom507
dc.relation.ispartofpageto510
dc.relation.ispartofjournalJournal of Sports Sciences
dc.relation.ispartofvolume20
dc.subject.fieldofresearchBiomechanics
dc.subject.fieldofresearchHuman Movement and Sports Sciences
dc.subject.fieldofresearchCurriculum and Pedagogy
dc.subject.fieldofresearchcode110601
dc.subject.fieldofresearchcode1106
dc.subject.fieldofresearchcode1302
dc.titleThe measurement of shoulder alignment in cricket fast bowling
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codec1x
gro.facultyGriffith Health Faculty
gro.date.issued2002
gro.hasfulltextNo Full Text
gro.griffith.authorLloyd, David


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