The reliability of three-dimensional scapular attitudes in healthy people and people with shoulder impingement syndrome

Roy, Jean-Sébastien; Moffet, Hélène; Hébert, Luc J.; St-Vincent, Guy; McFadyen, Bradford J.

doi:10.1186/1471-2474-8-49

Cited by 22 publications

(19 citation statements)

References 30 publications

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“…These differences in scapular motion might lead to the development of SIS or represent adaptations in scapular motion due to the SIS. When the data from prior studies 4,6,8,[10][11][12]14,16,24 were collapsed using meta-analysis, patients with SIS displayed a consistent pattern of less UR, less ER, greater ELE, and greater RET than healthy controls. These results concurred with our hypotheses of less scapular UR and ER and greater ELE in SIS but conflicted with our hypotheses of less RET and less PT.…”

Section: Discussionmentioning

confidence: 99%

“…Roy et al 14 Subjects with SIS had more UR in all positions, more PT and ER at 70° flexion; SIS had less PT and ER at 90° abduction.…”

Section: Borstad and Ludewigmentioning

confidence: 99%

“…McClure et al 12 explored arm motion in the sagittal and scapular planes, while Hebert et al 8 and Roy et al 14 looked at arm motions in the sagittal and frontal planes. The greatest differences between those with SIS and controls are seen in scapular-plane arm elevation, possibly due to the decreased constraints to scapular motion.…”

Section: Plane Of Arm Elevationmentioning

confidence: 99%

“…[1][2][3] Altered scapular kinematics have been reported in patients with rotator-cuff disease, specifically, subacromial-impingement syndrome [3][4][5][6][7][8][9][10][11][12][13][14][15] and internal rotator-cuff impingement. 16 The reported altered scapular kinematic might contribute to the development of the pathology or result from adaptations to the rotator-cuff pathology.…”

mentioning

confidence: 99%

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Scapular Kinematics and Subacromial-Impingement Syndrome: A Meta-Analysis

Timmons¹,

Thigpen²,

Seitz³

et al. 2012

Journal of Sport Rehabilitation

152

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Context:The literature does not present a consistent pattern of altered scapular kinematics in patients with shoulder-impingement syndrome (SIS). Objectives: To perform meta-analyses of published comparative studies to determine the consistent differences in scapular kinematics between subjects with SIS and controls. In addition, the purpose was to analyze factors of the data-collection methods to explain the inconsistencies in reported kinematics. The results of this study will help guide future research and enable our understanding of the relationship between scapular kinematics and SIS. Evidence Acquisition: A search identified 65 studies; 9 papers met inclusion criteria. Sample sizes, means, and SDs of 5 scapular-kinematic variables were extracted or obtained from each paper's lead author. Standard difference in the mean between SIS and controls was calculated. Moderator variables were plane of arm elevation, level of arm elevation (ARM) and population (POP). Evidence Synthesis: Overall, the SIS group had less scapular upward rotation (UR) and external rotation (ER) and greater clavicular elevation (ELE) and retraction (RET) but no differences in scapular posterior tilt (PT). In the frontal plane, SIS subjects showed greater PT and ER, and in the scapular plane, less UR and ER and greater ELE and RET. There was also greater ELE and RET in the sagittal plane. There was less UR at the low ARM and greater ELE and RET at the high ARM with SIS. Athletes and overhead workers showed less UR, while athletes showed greater PT and workers showed less PT and ER. The general population with SIS had greater ELE and RET only. Conclusions: Subjects with SIS demonstrated altered scapular kinematics, and these differences are influenced by the plane, ARM, and POP. Athletes and overhead workers have a different pattern of scapular kinematics than the general population. The scapular plane is most likely to demonstrate altered kinematics. These factors should be considered when designing futures studies to assess the impact of altered kinematics in patients with SIS.

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Section: Discussionmentioning

confidence: 99%

“…Roy et al 14 Subjects with SIS had more UR in all positions, more PT and ER at 70° flexion; SIS had less PT and ER at 90° abduction.…”

Section: Borstad and Ludewigmentioning

confidence: 99%

Section: Plane Of Arm Elevationmentioning

confidence: 99%

mentioning

confidence: 99%

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Scapular Kinematics and Subacromial-Impingement Syndrome: A Meta-Analysis

Timmons¹,

Thigpen²,

Seitz³

et al. 2012

Journal of Sport Rehabilitation

152

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“…The measurement is performed with the subject in a static position. The assessor identifies the bony landmark using either a single probe Hébert et al, 2000;Lempereur et al, 2010;Meskers et al, 1999;Roy et al, 2007;van der Helm and Pronk 1995) or a 3-pin probe device (known as a scapular locator) set to the individual scapular bony landmarks (Barnett et al, 1999;van Andel et al, 2009). The digitizing probes allow 3D reconstruction of bony landmarks to calculate the scapular position in relation to the thoracic spine.…”

Section: Digitizing Probesmentioning

confidence: 99%

Refining scapulothoracic kinematic measurement and characterising scapulothoracic resting posture in those with and without chronic non-specific neck pain

Bet-Or¹

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Neck pain is a common and recurrent condition affecting between 30 to 50% of adults in any given year. People experiencing neck pain commonly report difficulties in performing activities involving the upper extremity. Furthermore, clinical trials that have included exercises that target the shoulder girdle have shown beneficial effects in reducing neck pain. These observations are feasible based on the biomechanical dependence of the cervical spine and shoulder girdle, which includes common muscle attachments. However, to date there has been a paucity of studies investigating underlying movement disorders of the shoulder girdle in people with neck pain. This is in part due to the challenges of kinematic measurement in this region. The aim of this thesis is to contribute to the literature concerning the role of the shoulder girdle and thorax complex in neck pain from three perspectives. First, the thesis has further refined and informed measurement methods of shoulder girdle and thoracic kinematics (Studies 1-3). Secondly, the thesis further defined normative kinematics of the region with a focus on upright resting posture (Study 4). Thirdly, the thesis explored differences in shoulder girdle and thoracic resting posture in upright standing in those with and without neck pain (Study 5).Advancement in knowledge concerning normal and impaired function of the shoulder girdle has been hindered by challenges related to 3D motion capture of the shoulder girdle and thorax due to skin movement and the complexity of measuring multiple joints and axes of rotation. Therefore, Study1 focused on refining and validating an acromion marker cluster (AMC) method to track scapular movement with the intent of minimising skin movement error. Although the findings of Study 1 indicated that the refined AMC design did not appear to lessen skin movement error compared to previous designs, it was found to be of comparable accuracy (max RMSE 4.45°) and reliability to previous designs (within-session test-retest ICC 0.79-0.99) and appropriate for use in the subsequent thesis studies. In Study 2 the reliability and validity of the AMC method was further evaluated in its capacity to track the scapula at end range clavicular movements (protraction/retraction, elevation/depression). Establishing its measurement accuracy and reliability (max RMSE 6.6°) in these common directions of scapula motion was necessary as it had been previously unstudied. While Studies 1 and 2 focused on optimising the measurement of scapulothoracic kinematics by ensuring the scapula could be tracked accurately, Study 3 focused on refining the measurement of the relationship between the shoulder girdle and the underlying thorax. This study compared thoracic and shoulder girdle postural relationships expressed in the external reference frame to that expressed in the traditionally used ISB recommended thorax reference frame. Using these different frames of iii reference Study 3 also compared measures of thoracic inclination and thoracic curvature. The findings sho...

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Inter-operator reliability and prediction bands of a novel protocol to measure the coordinated movements of shoulder-girdle and humerus in clinical settings

Garofalo

Cutti²,

Filippi³

et al. 2009

Med Biol Eng Comput

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A clinical motion analysis protocol was developed to measure the coordinated movements of shoulder-girdle and humerus (girdle-humeral rhythm--GD-H-R) during humerus flexion-extension (HFE) and ab-adduction (HAA), through an optoelectronic system. In particular, the protocol describes the GD-H-R with 2 angle-angle plots for each movement: girdle elevation-depression and protraction-retraction vs HFE, and vs HAA. Each of these plots is further divided in two subplots, one for the upward and one for the downward phases of the movement. By involving 11 participants and 2 operators, we measured the protocol's inter-operator reliability which ranged from very-good to excellent depending on the angle-angle plot (median values of the inter-operator coefficient of multiple correlation for the angle-angle plots higher than 0.94). We then computed the subjects' average control patterns, together with statistically meaningful prediction bands. +/-1SD confidence bands were also computed and their width ranged from +/-0.5 degrees to +/-4.6 degrees. Based on these results we could conclude that the method is robust and able to identify even limited differences in the GD-H-R.

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The reliability of three-dimensional scapular attitudes in healthy people and people with shoulder impingement syndrome

Cited by 22 publications

References 30 publications

Scapular Kinematics and Subacromial-Impingement Syndrome: A Meta-Analysis

Scapular Kinematics and Subacromial-Impingement Syndrome: A Meta-Analysis

Refining scapulothoracic kinematic measurement and characterising scapulothoracic resting posture in those with and without chronic non-specific neck pain

Inter-operator reliability and prediction bands of a novel protocol to measure the coordinated movements of shoulder-girdle and humerus in clinical settings

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