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Measuring scapular kinematics during arm lowering using the acromion marker cluster

Warner, M.B., Chappell, P.H. and Stokes, M.J. (2012) Measuring scapular kinematics during arm lowering using the acromion marker cluster [in special issue: Network Approaches in Complex Environments] Human Movement Science, 31, (2), pp. 386-396. (doi:10.1016/j.humov.2011.07.004).

Record type: Article


The aim of the present study was to examine the acromion marker cluster (AMC) method of measuring scapular kinematics during the arm lowering, eccentric, phase. Twenty six participants completed arm elevation and lowering in the sagittal, frontal and scapular plane. The participants held their arm at 30° increments while the orientation of the scapula was recorded using an AMC and a scapular locator (SL). There were no significant differences between the AMC and SL during the lowering phase for sagittal and scapular plane arm movements. The AMC significantly underestimated upward rotation (max RMSE = 6.0°), and significantly overestimated posterior tilt (max RMSE = 7.2°) during arm lowering in the frontal plane. The reported root mean square errors, however, were within the ranges observed during the elevation phase and reported in previous literature. The AMC therefore provides a reasonable description of scapular kinematics during the arm lowering phase.

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e-pub ahead of print date: 27 August 2011
Published date: April 2012
Keywords: scapula, kinematic analysis, validity, arm lowering, acromion marker cluster
Organisations: Faculty of Health Sciences


Local EPrints ID: 196195
ISSN: 0167-9457
PURE UUID: d1c20866-57dc-494a-9224-9bb1022b38cf
ORCID for M.B. Warner: ORCID iD
ORCID for M.J. Stokes: ORCID iD

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Date deposited: 05 Sep 2011 10:02
Last modified: 18 Jul 2017 11:23

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Author: M.B. Warner ORCID iD
Author: P.H. Chappell
Author: M.J. Stokes ORCID iD

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