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Table 3 Spearman’s rank-order correlations (rs) and rank-order partial correlations (rsp) between physical performance at the end of the exercise therapy and at 5 years after ACL injury/ACLR and K-SES scores at 6 years

From: Impact of treatment strategy and physical performance on future knee-related self-efficacy in individuals with ACL injury

  K-SES
(n = 33–85)
rs p-value rspa p-value
At the end of the exercise therapy, at 10 months
 Single-leg hop LSI 0.150 0.244 0.148 0.264
 Vertical hop LSI −0.142 0.431 −0.236 0.210
 Square hop LSI 0.267 0.037 0.265 0.045
 Single-leg rise LSI 0.163 0.209 0.190 0.153
 Single-leg balance LSI 0.237 0.066 0.238 0.072
 Knee extension LSI 0.130 0.375 0.167 0.267
 Knee flexion LSI 0.286 0.078 0.341 0.042
At 5 years
 Single-leg hop LSI 0.298 0.006 0.310 0.005
Change between 10 months and 5 years
 Single-leg hop LSI 0.201 0.120 0.196 0.139
  1. Bold numbers represent moderate correlations. Regular numbers represent low correlations. Correlation coefficients: ≥ 0.10 to 0.29 denote low association, ≥ 0.30 to 0.49 moderate association and coefficients ≥0.50 large association
  2. K-SES Knee Self-Efficacy Scale, LSI Limb Symmetry Index
  3. aPhysical performance effect independent of age, gender and treatment