Table 2.
Percent of Maximal Volitional Contraction (% of MVC) of Scapular Muscles During Exercise Patterns with Associated Standard Error of the Mean (SEM).
| Pattern | Upper Trapezius % of MVC (SEM) | Middle Trapezius % of MVC (SEM) | Lower Trapezius % of MVC (SEM) | Serratus Anterior % MVC (SEM) |
|---|---|---|---|---|
| D1ET | 27.6 (15.5) | 15.9 (15.3) | 25.2 (26.1) | 42.5 (20.9) |
| D1FT | 53.0 (29.7) | 16.7 (15.0) | 23.9 (16.3) | 50.0 (28.1) |
| D1FW | 39.6 (26.4) | 18.4 (15.6) | 23.7 (18.4) | 43.7 (22.7) |
| D2ET | 27.1 (17.1) | 24.2 (23.1) | 29.3 (35.3) | 43.1 (21.5) |
| D2FT | 68.5 (47.9) | 45.3 (20.7) | 44.9 (31.2) | 48.7 (21.6) |
| D2FW | 53.2 (39.7) | 33.2 (14.7) | 32.0 (13.9) | 44.6 (21.6) |
D1ET = D1 Extension with elastic resistance; D1FT = D1 Flexion with elastic resistance; D1FW = D1 Flexion with a 3 pound weight; D2ET = D2 Extension with elastic resistance; D2FT = D2 Flexion with elastic resistance; D2FW = D2 Flexion