Table 2.
Average muscle maximum moment arms and standard error values for shoulder muscles calculated across all relevant studies for coronal plane abduction, scapular plane abduction, flexion and axial rotation
Coronal plane abduction | Scapular plane abduction | Flexion | Axial rotation | |||||
---|---|---|---|---|---|---|---|---|
Moment arm | SE | Moment arm | SE | Moment arm | SE | Moment arm | SE | |
Anterior deltoid | 36.2 | 8.0 | 33.9 | 5.0 | 35.5 | 3.3 | −22.2 | 6.2 |
Middle deltoid | 26.8 | 1.7 | 33.4 | 1.5 | 21.5 | 4.8 | −14.6 | 12.6 |
Posterior deltoid | 14.5 | 6.2 | −16.9 | 4.8 | −36.4 | 10.5 | −7.3 | 1.3 |
Pectoralis major | −44.0 | 11.1 | 35.1 | 4.9 | 21.1 | 0.9 | 20.0 | |
Latissimus dorsi | −37.3 | 1.7 | −35.6 | 8.4 | −26.8 | 13.2 | 9.0 | |
Teres major | −47.6 | 1.5 | −51.7 | 4.4 | −51.7 | 2.7 | 7.5 | |
Supraspinatus | 28.2 | 1.6 | 26.4 | 1.3 | 27.1 | 15.6 | −4.0 | |
Infraspinatus | 15.6 | 3.4 | 11.2 | 2.4 | 7.1 | 4.1 | 24.5 | 0.9 |
Subscapularis | −8.1 | 2.3 | 9.7 | 0.8 | 9.5 | 4.7 | −20.6 | 2.8 |
Teres minor | 6.4 | 2.6 | 8.5 | 6.5 | −14.8 | 1.8 | 20.9 | 1.6 |
Axial rotation data are provided for humerus in its neutral position. All data are given in mm.