Table 2.
Lower Limb Parameters for Injured Limb of Injured Players Versus Uninjured Limbs of Uninjured Players a
| Injured Limb of Injured Players (n = 26) | Uninjured Limbs of Uninjured Players b (n = 136) | P | Cohen d | |
|---|---|---|---|---|
| Height of navicular tubercle, cm | 4.4 ± 0.4 | 4.4 ± 0.5 | .99 | 0.003 |
| Joint ROM, deg | ||||
| Knee extension angle | 6.9 ± 4.2 | 6.5 ± 4.3 | .64 | 0.10 |
| Ankle dorsiflexion angle | 42.0 ± 7.8 | 42.8 ± 5.5 | .60 | 0.28 |
| Hip internal rotation angle | 52.9 ± 9.9 | 50.5 ± 9.7 | .27 | 0.25 |
| Muscle flexibility, deg | ||||
| Iliopsoas | 7.4 ± 3.7 | 6.0 ± 3.2 | .05 | 0.42 |
| Quadriceps | 30.2 ± 4.3 | 30.4 ± 4.8 | .82 | 0.05 |
| Hamstring | 13.8 ± 7.5 | 12.1 ± 6.3 | .24 | 0.25 |
| Gastrocnemius | 11.9 ± 4.9 | 12.5 ± 4.4 | .54 | 0.13 |
| Soleus | 20.2 ± 6.7 | 21.4 ± 5.3 | .32 | 0.21 |
| Muscle strength, N·m/kg | ||||
| Normalized isometric knee extension | 3.0 ± 0.4 | 2.7 ± 0.5 | .07 | 0.32 |
| Normalized isometric knee flexion | 1.3 ± 0.3 | 1.3 ± 0.2 | .95 | 0.02 |
| Normalized isometric hip abduction | 2.0 ± 0.4 | 1.9 ± 0.4 | .55 | 0.08 |
| H/Q ratio | 0.45 ± 0.09 | 0.50 ± 0.10 | .02 | 0.50 |
| Center of pressure on single-leg balance test, mm | 417.1 ± 123.2 | 359.7 ± 4.2 | .008 | 0.58 |
a
Data are reported as mean ± SD. Boldface P values indicate a statistically significant difference between the groups (P < .05). deg, degree; H/Q, hamstring to quadriceps; ROM, range of motion.
b
Calculated as the average of the left and right limbs of the uninjured players.