Contralateral limb differences
| Cohort | Normal controls | Elite athlete controls | ACL patients | ||||||
| Test | Left mean/median (SD/IQR) | Right mean/median (SD/IQR) | P value | Left mean/median (SD/IQR) | Right mean/median (SD/IQR) | P value | Contralateral mean/median (SD/IQR) | ACL mean/median (SD/IQR) | P value |
| Hop (s) | 0.235 (0.066) | 0.236 (0.064) | 0.85 | 0.321 (0.054) | 0.312 (0.050) | 0.35 | 0.235 (0.058) | 0.217 (0.054) | <0.001 |
| Hop P(N) | 1306.46 (368.82) | 1244.18 (365.75) | 0.03 | 1008.62 (200.18) | 998.11 (285.84) | 0.86 | 1369.57 (642.86) | 1368.36 (675.34) | 0.95 |
| Single leg land box drop P (N) | 1484.90 (477.64) | 1355.99 (414.28) | 0.01 | 1157.64 (278.68) | 1117.36 (336.34) | 0.61 | 1549.46 (770.01) | 1514.45 (723.58) | 0.21 |
| ACL leg lead box drop double leg land P (N) | 798.61 (286.52) | 699.87 (286.31) | 0.03 | 566.43 (189.48) | 429.27 (162.69) | 0.12 | 845.06 (464.47) | 720.72 (417.65) | 0.004 |
| Contralateral leg lead box drop double leg land P (N) | 710.27 (317.14) | 814.17 (383.90) | 0.05 | 435.60 (144.51) | 487.73 (192.19) | 0.46 | 950.23 (496.10) | 816.70 (410.79) | <0.001 |
| Double leg squat VV | 7 (11) | 8 (11) | 0.91 | 4.5 (7) | 4 (7) | 0.57 | 7 (7) | 6 (6) | 0.97 |
| Single leg squat VV | 9 (10.97) | 9 (8) | 0.73 | 5 (6) | 5 (8) | 0.74 | 7 (6) | 9 (7) | 0.02 |
| Hop VV | 0 (8.9) | 4 (8) | 0.73 | 5 (10) | 5 (8) | 0.87 | 5 (9) | 5 (9.94) | 0.91 |
| Single leg box drop VV | 8 (15) | 8 (12) | 0.46 | 4.5 (7) | 4 (7) | 0.29 | 7 (13) | 8.82 (14) | 0.04 |
| ACL leg lead box drop double leg land VV | 7 (15) | 5 (13) | 0.19 | 0 (9) | 0 (8) | 0.81 | 6 (13) | 5 (11) | 0.55 |
| Contralateral leg lead box drop double leg land VV | 6 (16) | 8 (18) | 0.21 | 4 (9) | 5.50 (14) | 0.04 | 4.20 (12) | 6 (15) | 0.10 |
TekScan data are reported as mean and SD as normally distributed data. Varus/valgus measures are reported as median and IQR due to skewed data. Hop time and p values reported to three decimal places otherwise two.
ACL, anterior cruciate ligament; P, pressure measured in Newtons (N); VV, varus/valgus deviation from neutral reported in degrees.