Table 1.
Variables of interest: Peak hip adduction, peak hip internal rotation, trunk side bending (ipsilateral trunk lean at the time of initial contact) , and peak knee extensor moment are all positive. Peak knee flexion angle and peak (forward) trunk lean angle are both negative.
| Variables | ACL group | Normal group | Difference | P-value | Effect Size |
|---|---|---|---|---|---|
| Peak hip adduction (deg) | 18.0 ± 4.9 | 15.9± 3.8 | 2.1 | 0.11 | 0.47 |
| Peak hip internal rotation (deg) | 11.1 ± 5.2 | 12.3± 5.6 | −1.2 | 0.47 | 0.22 |
| Trunk sidebending at initial contact (deg) | −2.0 ± 2.7 | −3.7± 1.9 | 1.7 | 0.02 | 0.72 |
| Peak Trunk lean (deg) | −6.3 ± 4.9 | −2.1± 3.5 | −4.2 | 0.00 | 0.98 |
| Hip Abduction strength (Nm/kg) | 16.0± 4.7 | 14.5± 3.5 | 1.5 | 0.25 | 0.36 |
| Hip external rotation strength (Nm/kg) | 6.9± 4.4 | 6.4± 1.5 | 0.5 | 0.63 | 0.15 |
| Trunk control test errors (injured limb down) | 7.3 ± 5.6 | 3.2± 3.1 | 4.1 | 0.00 | 0.90 |
| Trunk control test errors (non-injured limb down) | 5.8± 5.1 | 1.3± 1.1 | 4.5 | 0.00 | 1.22 |
| Peak knee Extension (deg) | −45.0± 6.3 | −47.6± 4.7 | 2.6 | 0.15 | 0.46 |
| Peak knee Extensor Moment (Nm/kg*height) | 0.8± 0.3 | 1.1± 0.3 | −0.3 | 0.01 | 1.00 |