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Mean (SE) normalized baseline muscle activity expressed as a proportion of maximum voluntary contraction
| Muscle | Support level | ||
|---|---|---|---|
| Low (0 %) | Medium (45 %) | High (90 %) | |
| Anterior deltoid (AD) | 0.1040 (0.0012) | 0.0743 (0.0010) | 0.0384 (0.0008) |
| Biceps brachii (BB) | 0.0508 (0.0010) | 0.0448 (0.0011) | 0.0397 (0.0011) |
| Pronator teres (PT) | 0.0368 (0.0008) | 0.0332 (0.0008) | 0.0302 (0.0008) |
