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Table 2 Strength and single-leg hop distance variables in participants

From: Single-leg hop distance normalized to body height is associated with the return to sports after anterior cruciate ligament reconstruction

   RTS status   
  Total (n = 73) YRTS (n = 43) NRTS (n = 30) P-value Effect size
SLHD LSI, % 98.9 ± 6.6 99.6 ± 6.6 97.5 ± 6.5 0.182 0.32
SLHD on operated side (%body height) 78.5 ± 15.8 81.9 ± 13.2 73.5 ± 18.1 0.025 0.55
Ext 60 LSI (%) 91.1 ± 11.9 93.0 ± 11.6 89.1 ± 12.2 0.165 0.33
Ext 180 LSI (%) 90.1 ± 9.2 92.3 ± 8.3 87.0 ± 9.5 0.013 0.60
Flex 60 LSI (%) 92.0 ± 10.8 92.3 ± 11.6 92.1 ± 11.4 0.930 0.02
Flex 180 LSI (%) 92.0 ± 11.5 93.8 ± 11.7 89.5 ± 10.6 0.116 0.38
  1. ACLR anterior cruciate ligament reconstruction, RTS return-to-sports, YRTS yes‒return-to-sports, NRTS no‒return-to-sports, SLHD single-leg hop distance, LSI limb symmetry index
  2. Ext and Flex 60/180 represent the isokinetic knee extension and flexion torque at 60°/s or 180°/s
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