Table 3

Spearman's rank correlation coefficients (p-value) between muscle function tests (n=52–54)

Knee extensionKnee extension LSIKnee flexion*Knee flexion LSI*Leg pressLeg press LSIVertical hopVertical hop LSISide hopSide hop LSIOne leg hopOne leg hop LSITSP total score†
Knee extension LSI0.325 (0.017)
Knee flexion*0.818 (0.000)0.146 (0.295)
Knee flexion LSI*−0.056 (0.691)0.116 (0.408)0.224 (0.106)
Leg press0.836 (0.000)0.190 (0.169)0.746 (0.000)−0.197 (0.157)
Leg press LSI0.070 (0.615)0.377 (0.005)−0.006 (0.965)−0.005 (0.973)0.126 (0.363)
Vertical hop0.589 (0.000)0.117 (0.399)0.555 (0.000)0.031 (0.823)0.550 (0.000)−0.097 (0.487)
Vertical hop LSI−0.024 (0.861)0.390 (0.004)−0.048 (0.733)−0.137 (0.328)−0.002 (0.988)0.192 (0.164)0.287 (0.035)
Side hop0.335 (0.013)0.051 (0.713)0.227 (0.103)−0.242 (0.081)0.421 (0.002)−0.160 (0.249)0.677 (0.000)0.287 (0.036)
Side hop LSI−0.033 (0.815)0.247 (0.072)−0.121 (0.387)0.109 (0.437)−0.106 (0.447)0.026 (0.851)0.204 (0.138)0.503 (0.000)0.366 (0.007)
One leg hop0.555 (0.000)0.013 (0.928)0.528 (0.000)−0.199 (0.154)0.577 (0.000)−0.186 (0.179)0.811 (0.000)0.247 (0.071)0.720 (0.000)0.140 (0.312)
One leg hop LSI0.167 (0.000)0.277 (0.043)0.037 (0.792)−0.236 (0.089)0.143 (0.303)0.019 (0.889)0.246 (0.073)0.528 (0.000)0.363 (0.007)0.415 (0.002)0.386 (0.004)
TSP total score†−0.214 (0.123)−0.163 (0.245)−0.029 (0.839)0.231 (0.099)−0.164 (0.242)0.060 (0.668)−0.441 (0.001)−0.265 (0.055)−0.460 (0.001)−0.286 (0.038)−0.399 (0.003)−0.319 (0.020)
TSP difference†−0.244 (0.078)−0.145 (0.300)−0.143 (0.313)0.168 (0.235)−0.194 (0.164)−0.033 (0.813)−0.438 (0.001)−0.251 (0.070)−0.354 (0.009)−0.287 (0.038+q)−0.414 (0.002)−0.358 (0.008)0.919 (0.000)
  • *One participant did not perform the test.

  • †One participant did not perform the test.

  • LSI, limb symmetry index; TSP, Test for Substitution Patterns.