|
SEMG activity (% MVC) |
|
Shoulder position in climbers |
Shoulder position in non-climbers |
| “Straight arms, legs” |
Naturally chosen |
Corrected |
Naturally chosen |
Corrected |
| M.trapezius - middle part |
15.8 ± 10.3 |
22.8 ± 6.5 |
10.3 ± 4.3 |
24.9 ± 13.2 |
| M.trapezius - inferior part |
28.1 ± 24.7 |
30.1 ± 5.3 |
17.4 ± 4.9 |
51.5 ± 20.5 |
| M. serratus anterior |
4.4 ± 3 |
15.2 ± 4 |
13 ± 10.6 |
7.8 ± 2.4 |
| M. pectoralis major |
3.1 ± 2.1 |
11.7 ± 1.8 |
11.3 ± 1.8 |
9.2. ± 4.7 |
| “Bent arm, straight legs” |
|
|
|
|
| M.trapezius - middle part |
33.9 ± 18 |
60.6 ± 14.6 |
16.1 ± 4.3 |
27.1 ± 7.9 |
| M.trapezius - inferior part |
49.4 ± 12.2 |
67.2 ± 26.5 |
48 ± 6.6 |
75.6 ± 15.4 |
| M. serratus anterior |
1.8 ± 0.8 |
10.6 ± 11.9 |
2.7 ± 0.7 |
7.3 ± 5.1 |
| M. pectoralis major |
1.4 ± 0.4 |
1.6 ± 0.4 |
2.7 ± 0.5 |
3.2 ± 0.2 |
| “Straight arm, bent legs” |
|
|
|
|
| M.trapezius - middle part |
11.3 ± 3.7 |
35.5 ± 21.3 |
16.8 ± 1.1 |
28.2 ± 12.8 |
| M.trapezius - inferior part |
18.4 ± 8.3 |
52 ± 5.7 |
20.6 ± 3.4 |
69.4 ± 31.6 |
| M. serratus anterior |
3.1 ± 1.5 |
6.2 ± 4.5 |
5.0 ± 1.0 |
6.6 ± 0.4 |
| M. pectoralis major |
7.9 ± 3.6 |
18.7 ± 8.7 |
7.0 ± 4.7 |
15.3 ± 2.5 |
| “Overhang posture” |
Naturally chosen |
Corrected |
Naturally chosen |
Corrected |
| M.trapezius - middle part |
10.6 ± 2.9 |
40.9 ± 19.6 |
32.5 ± 3.4 |
42.7 ± 11.5 |
| M.trapezius - inferior part |
14.6 ± 2.9 |
65.9 ± 11.1 |
44 ± 15.7 |
81.5 ± 23.8 |
| M. serratus anterior |
4.2 ± 2.2 |
11.7 ± 7.9 |
4.3 ± 1.6 |
7.0 ± 1.2 |
| M. pectoralis major |
10.7 ± 2.7 |
12.5 ± 5.2 |
13.7 ± 4.2 |
14.3 ± 2.3 |
SEMG: surface electromyography; MVC: maximal voluntary contraction; naturally chosen and corrected positions values are reported as mean ± standard deviation.