Table 2.
Descriptive statistics on measurements used in hypothesis testing (N = 197)
| Measurements | Mean (SD), min–max | Pearson’s r | p-value |
|---|---|---|---|
| ACL-RSI | 55.7 (23), 0–100 | ||
| IKDC 2000 | 78.7 (13.2), 26.4–100 | 0.61 | < 0.01 |
| TSKa | 24.3 (6.1), 13–47 | − 0.34 | < 0.01 |
| KOOS pain | 89.4 (9.9), 44–100 | 0.48 | < 0.01 |
| KOOS symptoms | 83.4 (12.5), 43–100 | 0.37 | < 0.01 |
| KOOS function in daily living | 95.9 (7.4), 54–100 | 0.43 | < 0.01 |
| KOOS function in sport and recreationb | 73.7 (19.6), 5–100 | 0.49 | < 0.01 |
| KOOS knee-related Quality of Life | 64.7 (18.1), 6–100 | 0.66 | < 0.01 |
| Hop test, LSI %c | 95.5 (9.2), 44.8–112.4 | 0.28 | < 0.01 |
| PT extension 60°/s LSI %d | − 17.7 (14.8), − 60.2 to 30.5 | 0.17 | 0.04 |
| PT flexion 60°/s LSI % | − 4.3 (17.5), − 47.4 to 49.5 | 0.14 | n.s |
| TW extension 60°/s LSI % | − 11.6 (15.6), − 59.6 to 42.5 | 0.13 | n.s |
| TW flexion 60°/s LSI % | 2.9 (28.3), − 56.7 to 109.7 | 0.10 | n.s |
Includes correlations (Pearson’s r) between nine-month follow-up scores on ACL-RSI-No, and measures of fear of movement and function
ACL-RSI Anterior Cruciate Ligament-Return to Sports after Injury Scale, IKDC 2000 The International Knee Documentation Committee Subjective Knee Form 2000, TSK Tampa Scale of Kinesiophobia, KOOS The Knee injury and Osteoarthritis Outcome Score, LSI Leg Symmetry Index, PT peak torque, TW Total Work
a1 missing questionnaire in TSK
b2 missing questionnaires in KOOS subscales Sport and recreation and Quality of Life
c146 patients completed hop tests
d142 patients completed isokinetic strength tests, invalid results for flexion in three of these