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| Dependent variable | Fixed factors | p | Effect size | Power |
|---|---|---|---|---|
| Upper trapezius | laterality*support*angle | 0.71 | 0.02 | 0.14 |
| support*laterality | 0.67 | 0.01 | 0.07 | |
| angle*laterality | 0.78 | 0.02 | 0.11 | |
| support*angle | 0.001 | 0.60 | 1.00 | |
| Anterior deltoid | laterality*support*angle | 0.12 | 0.10 | 0.40 |
| support*laterality | 0.07 | 0.14 | 0.45 | |
| angle*laterality | 0.23 | 0.06 | 0.25 | |
| support*angle | 0.001 | 0.75 | 1.00 | |
