Table 4

Physical performance test results as predictors of delayed ACLR over 5 years for those initially treated with exercise alone (n=42)

Undergoing delayed ACLR within 5 years post injury
OR95% CIp Value
 Quadriceps LSI (n=33)1.080.97 to 1.20.18
 Hamstrings LSI (n=27)1.110.98 to 1.260.099
One-leg hop (n=40)
 Injured leg (cm)1.000.99 to 1.020.71
 LSI (%)1.070.96 to 1.190.26
Square hop (n=39)
 Injured leg (number of hops)0.980.92 to 1.050.58
 LSI (%)0.980.94 to 1.030.44
Vertical hop (n=21)
 Injured leg (cm)0.850.72 to 1.000.048
 LSI (%)0.970.90 to 1.050.44
One-leg balance (n=41)
 Injured leg (s)1.020.99 to 1.040.24
 LSI (%)1.010.99 to 1.020.35
One-leg rise (n=39)
 Injured leg (cm)1.000.96 to 1.040.98
 LSI (%)1.000.92 to 1.090.98
Test battery (n=37) (LSI≥90% in all 4 tests)*0.660.16 to 2.650.56
  • Univariate logistic regression analyses were performed for each of the potential predictors.

  • *Tests included were one-leg hop, square-hop, one-leg balance and one-leg rise tests.

  • ACLR, anterior cruciate ligament reconstruction; LSI, leg symmetry index (injured leg divided by non-injured leg×100).