Table 2.
Positive and negative work done by the muscle fibers, tendons, and muscle-tendon units for the lateral gastrocnemius, medial gastrocnemius, and soleus during rearfoot striking (RFS) and forefoot striking (FFS).
| Muscle Fiber | Tendon | Muscle-Tendon Unit | |||||||
|---|---|---|---|---|---|---|---|---|---|
| RFS | FFS | p-value | RFS | FFS | p- value | RFS | FFS | p-value | |
| Medial Gastrocnemius | |||||||||
| Positive Work | 11.9 (3.2) | 11.5 (3.3) | 0.652 | 8.5 (2.2) | 10.8 (3.5) | — | 18.6 (4.2) | 18.4 (4.0) | 0.723 |
| Negative Work | 6.0 (2.4) | 16.9 (6.0) | <0.001 | — | — | — | 12.8 (3.3) | 23.8 (6.3) | <0.001 |
| Lateral Gastrocnemius | |||||||||
| Positive Work | 7.1 (1.8) | 7.0 (1.9) | 0.853 | 4.2 (1.1) | 5.2 (1.7) | — | 10.4 (2.3) | 10.1 (2.1) | 0.584 |
| Negative Work | 3.2 (1.3) | 8.9 (3.2) | <0.001 | — | — | — | 6.6 (1.7) | 12.1 (3.3) | <0.001 |
| Soleus | |||||||||
| Positive Work | 18.8 (5.6) | 15.3 (4.4) | 0.007 | 13.7 (3.8) | 9.6 (4.1) | 0.002 | 29.8 (7.0) | 22.1 (6.9) | <0.001 |
| Negative Work | 27.6 (5.4) | 31.2 (18.5) | 0.480 | — | — | — | 38.8 (7.8) | 38.2 (19.0) | 0.902 |
Presented are the mean (standard deviation) and the associated p-values. Bold indicates a significant difference.