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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