Normalised postural control for injured and contralateral non-injured leg among players with a new/recurrent ACL injury (N=55)
| ACL injured legs N=55 | Uninjured legs N=55 | Δ 95% CI | p Value | |
|---|---|---|---|---|
| Balance platform test (static)* | ||||
| ML speed | 0.12 (0.03) | 0.12 (0.04) | 0 (−0.008 to 0.005) | 0.66 |
| AP speed | 0.14 (0.04) | 0.14 (0.04) | 0 (−0.007 to 0.004) | 0.67 |
| 95% centile areal | 4.7 (1.6) | 4.8 (1.9) | −0.1 (−0.5 to 0.4) | 0.81 |
| Balance platform test (drop down)* | ||||
| ML speed | 0.25 (0.09) | 0.25 (0.09) | 0 (−0.050 to 0.056) | 0.88 |
| AP speed | 0.42 (0.20) | 0.38 (0.09) | 0.04 (−0.053 to 0.132) | 0.38 |
| 95% centile areal | 16.9 (8.0) | 16.6 (7.9) | 0.3 (−3.6 to 4.2) | 0.88 |
| Star Excursion Balance Test* | ||||
| Anteromedial | 0.84 (0.08) | 0.83 (0.08) | 0.01 (−0.004 to 0.021) | 0.18 |
| Medial | 0.86 (0.08) | 0.86 (0.08) | 0.01 (−0.003 to 0.021) | 0.14 |
| Posteromedial | 0.94 (0.08) | 0.93 (0.08) | 0.01 (−0.001 to 0.024) | 0.06 |
Between-leg differences are presented as Δ, mean±95% CI. Positive values (Δ) denote worse (balance platform) and better (Star Excursion Balance Test) normalised balance scores in the injured leg. Data are shown as means with SDs.
*Data were normalised for player height (Good Balance) or leg length (Star Excursion Balance Test).
AP, anterior–posterior; ML, mediolateral.