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Table 3 Spearman’s rank correlation coefficients between single-leg hop distance and knee strength

From: Correlations between isokinetic knee torques and single-leg hop distances in three directions in patients after ACL reconstruction

Involved limb

SLH

Anterior

Lateral

Medial

Total

KES 60°/s

0.51**

[0.26–0.70]

0.52**

[0.27–0.70]

0.55**

[0.31–0.72]

0.54**

[0.30–0.72]

KES 180°/s

0.62**

[0.41–0.77]

0.65**

[0.45–0.79]

0.59**

[0.37–0.75]

0.65**

[0.45–0.79]

KFS 60°/s

0.54**

[0.30–0.72]

0.53**

[0.29–0.71]

0.48**

[0.22–0.67]

0.55**

[0.31–0.72]

KFS 180°/s

0.57**

[0.34–0.74]

0.58**

[0.35–0.74]

0.54**

[0.30–0.72]

0.59**

[0.37–0.75]

Uninvolved limb

SLH

Anterior

Lateral

Medial

Total

KES 60°/s

0.61**

[0.39–0.76]

0.58**

[0.35–0.74]

0.64**

[0.43–0.78]

0.64**

[0.43–0.78]

KES 180°/s

0.53**

[0.29–0.71]

0.51**

[0.26–0.70]

0.59**

[0.37–0.75]

0.57**

[0.34–0.74]

KFS 60°/s

0.53**

[0.29–0.71]

0.56**

[0.33–0.73]

0.54**

[0.30–0.72]

0.57**

[0.34–0.74]

KFS 180°/s

0.51**

[0.26–0.70]

0.62**

[0.41–0.77]

0.60**

[0.38–0.76]

0.61**

[0.39–0.76]

  1. Values are Spearman’s rank correlation coefficients [95% confidence interval]. SLH Single-leg hop distance, Total Sum of hop distances in three directions, KES Knee extension strength, KFS Knee flexion strength. **P < 0.01