Table 1.
PC loadings from a representative subjects in the Step-push (s1) and Step-pull (s4) conditions.
| Muscle | M-mode1 (PC1) | M-mode2 (PC2) | M-mode3 (PC3) | M-mode1 (PC1) | M-mode2 (PC2) | M-mode3 (PC3) |
|---|---|---|---|---|---|---|
| Step-push condition (s1) | Step-pull condition (s4) | |||||
| FCR | 0.32 | 0.91 | −0.11 | −0.15 | 0.48 | 0.55 |
| FCU | 0.31 | 0.91 | 0.23 | 0.04 | 0.56 | 0.36 |
| ECR | 0.98 | 0.16 | 0.00 | 0.25 | 0.36 | 0.87 |
| ECU | 0.98 | 0.12 | 0.15 | 0.21 | 0.52 | 0.67 |
| BR | 0.96 | 0.27 | 0.01 | 0.42 | 0.22 | 0.54 |
| BIC | 0.14 | 0.00 | 0.86 | 0.66 | 0.01 | 0.38 |
| TRI | 0.00 | 0.69 | −0.14 | 0.11 | 0.62 | 0.21 |
| AD | −0.10 | −0.08 | 0.98 | 0.99 | 0.16 | −0.04 |
| PD | 0.08 | −0.02 | 0.83 | 0.18 | 0.95 | 0.21 |
Numbers in bold indicate significant loadings. Muscle abbreviations: flexor carpi radialis (FCR), flexor carpi ulnaris (FCU), extensor carpi radialis (ECR), extensor carpi ulnaris (ECU), brachioradialis (BR), biceps brachii (BIC), the medial head of triceps brachii (TRI), anterior deltoid (AD) and posterior deltoid (PD).