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dc.contributor.authorXu, Xu
dc.contributor.authorDickerson, Clark R.
dc.contributor.authorLin, Jia-hua
dc.contributor.authorMcGorry, Raymond W. 20:40:43 (GMT) 20:40:43 (GMT)
dc.descriptionThe final publication is available at Elsevier via © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
dc.description.abstractThe movements of the humerus, the clavicle, and the scapula are not completely independent. The coupled pattern of movement of these bones is called the shoulder rhythm. To date, multiple studies have focused on providing regression-based 3-D shoulder rhythms, in which the orientations of the clavicle and the scapula are estimated by the orientation of the humerus. In this study, six existing regression-based shoulder rhythms were evaluated by an independent dataset in terms of their predictability. The datasets include the measured orientations of the humerus, the clavicle, and the scapula of 14 participants over 118 different upper arm postures. The predicted orientations of the clavicle and the scapula were derived from applying those regression-based shoulder rhythms to the humerus orientation. The results indicated that none of those regression-based shoulder rhythms provides consistently more accurate results than the others. For all the joint angles and all the shoulder rhythms, the RMSE are all greater than 5°. Among those shoulder rhythms, the scapula lateral/medial rotation has the strongest correlation between the predicted and the measured angles, while the other thoracoclavicular and thoracoscapular bone orientation angles only showed a weak to moderate correlation. Since the regression-based shoulder rhythm has been adopted for shoulder biomechanical models to estimate shoulder muscle activities and structure loads, there needs to be further investigation on how the predicted error from the shoulder rhythm affects the output of the biomechanical model.en
dc.relation.ispartofseriesJournal of Electromyography and Kinesiology;
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.subjectthoracohumeral jointen
dc.subjectshoulder kinematicsen
dc.subjectISB recommendationsen
dc.titleEvaluation of regression-based 3-D shoulder rhythmsen
dcterms.bibliographicCitationXu, X., Dickerson, C. R., Lin, J., & McGorry, R. W. (2016). Evaluation of regression-based 3-D shoulder rhythms. Journal of Electromyography and Kinesiology, 29, 28–33.
uws.contributor.affiliation1Faculty of Applied Health Sciencesen

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