Participant information
| ACLR group (n=26) | Control group (n=22) | P value | |
| Age (years) | 23.2±3.4 | 28.7±3.8 | <0.001 |
| Body mass (kg) | 71.4±12.1 | 75.7±7.1 | 0.15 |
| Height (cm) | 173 (166–182)* | 177.4±6.1 | 0.29 |
| Body mass index (kg/m2) | 23.3±2.3 | 24.0±1.6 | 0.23 |
| Tegner score preinjury | 9 (9–9)* | 7 (7–9)* | <0.001 |
| IKDC | 94.9±7.0 | 100 | 0.002 |
| ACL-RSI | 92.0±10.6 | NA | NA |
| Quadriceps strength LSI % | 94±6 | NA | NA |
| SLHD LSI % | 97±4 | 100±5 | 0.011 |
| TRHD LSI % | 97±5 | 100 (98–102)* | 0.07 |
| Return to sport (months) | 9.5±2.7 | NA | NA |
| ACL hamstrings autograft, n (%) | 10 (38) | ||
| Isolated ACL injury, n | 15 | ||
| Meniscal injury, n | 11 | ||
| Cartilage lesion, n | 2 |
Values other than number of participants are expressed as mean±SD except where the data were non normally distributed where these data are presented as median and IQR.
Independent-sample t-tests were used for between groups comparison, significant difference (p<0.05).
*Non normally distributed data. All participants were male.
ACLR, anterior cruciate ligament reconstruction; ACL-RSI, Anterior Cruciate Ligament-Return to Sport after Injury scale; IKDC, International Knee Documentation Subjective Knee questionnaire; LSI, Limb Symmetry Index; NA, not available; SLHD, single leg hop for distance; TRHD, triple hop for distance.