Dominance effect on scapula 3-dimensional posture and kinematics in healthy male and female populations

Schwartz, Cédric; Croisier, Jean-Louis; Rigaux, Elise; Denoël, Vincent; Brüls, Olivier; Forthomme, Bénédicte

doi:10.1016/j.jse.2013.08.020

Cited by 26 publications

(22 citation statements)

References 44 publications

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“…In the present study, humeral orientation was calculated using the Y−X'−Y'' sequence in accordance with ISB recommendations 20) . Schwartz et al 15,16) adopted the Y−X'−Z'' sequence in order to avoid gimbal lock. Another study described the Y−X'−Y'' sequence for the humerus as being in a more anteriorly rotated and externally rotated position compared to the Y−X'−Z'' sequence, especially at lower angles of humeral elevation 7) .…”

Section: Discussionmentioning

confidence: 99%

“…However, it has often been assumed when comparing asymptomatic and symptomatic subjects that there is no gender difference 6,12,13) . Recent reports, though, suggest that gender may influence scapular kinematics 14) , and there have been a few studies exploring gender differences [14][15][16] .…”

Section: Introductionmentioning

confidence: 99%

“…Studies indicating a gender difference in scapular kinematics 15,16) have demonstrated that external rotation of the scapula was significantly greater in women than in men for flexion and abduction at 120°, with the mean differences being 13° for flexion and 7° for abduction. However, these authors investigated only two planes of elevation, i.e., flexion and abduction, and did not assess scapular plane elevation.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of scapular kinematics in three planes of shoulder elevation: A comparison between men and women

Nakayama

Onishi

Nojima

et al. 2018

JPFSM

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The aim of this study was to compare scapular kinematics between men and women during shoulder flexion, scapular plane elevation, and shoulder abduction. Eleven healthy men and 11 healthy women participated in this study. As participants performed shoulder flexion, scapular plane elevation, and abduction at a consistent speed, an electromagnetic motion capture system was used to analyze scapular motion. The change in scapular orientation from its resting position was calculated at 30°, 60°, 90° and 120° of humeral elevation. The study found that scapular upward rotation and posterior tilt angles increased significantly with each successive humeral elevation angle, but less so in women than in men. Scapular internal or external rotation differed significantly according to the plane of elevation, that is the scapula was internally rotated during flexion, with no change during scapular plane elevation, and it was externally rotated during abduction. This variation was more marked in women. This study revealed gender differences in scapular kinematics during shoulder motion. During shoulder elevation, the scapulothoracic joint played a greater role in men than in women, whereas the glenohumeral joint played a greater role in women.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of scapular kinematics in three planes of shoulder elevation: A comparison between men and women

Nakayama

Onishi

Nojima

et al. 2018

JPFSM

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“…The reduced clavicular elevation and increased protraction found in this study in females is similar to findings in clavicular posture in previous studies Sobush et al, 1996). The reduced scapular upward rotation on the right side reported for the whole population has also been reported in other studies reporting a more downward rotated scapula on the dominant side in rightdominant people (Greenfield et al, (1995); Raine and Twomey (1997), Schwartz et al, (2014), Matsuki et al, (2011). Other studies in contrast reported a more retracted clavicle and upwardly rotated scapula (Morais and Pascoal 2013) (Table 6.4-1).…”

Section: Hand Dominance and Side Differencesupporting

confidence: 91%

“…Right-dominant females demonstrated less elevated and retracted clavicle of the non-dominant side (Greenfield et al, 1995;Matsuki et al, 2011;Raine and Twomey 1997;Schwartz et al, 2014). reported a more downward rotated scapula on the dominant side in right-handed people.…”

Section: Hand Dominance and Side Differencementioning

confidence: 92%

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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Range of Motion

Warth

Millett

2015

Physical Examination of the Shoulder

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Dominance effect on scapula 3-dimensional posture and kinematics in healthy male and female populations

Cited by 26 publications

References 44 publications

Analysis of scapular kinematics in three planes of shoulder elevation: A comparison between men and women

Analysis of scapular kinematics in three planes of shoulder elevation: A comparison between men and women

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

Range of Motion

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