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Table 5 Pairwise Pearson correlations among ranges of motion and muscle strengths

From: Association of lower extremity range of motion and muscle strength with physical performance of community-dwelling older women

Variables Hip flexion ROM Hip extension ROM Knee flexion ROM Hip internal rotation ROM Hip external rotation ROM Ankle dorsiflexion ROM Ankle plantar flexion ROM Knee extension strength Knee flexion strength
r p value r p value r p value r p value r p value r p value r p value r p value r p value
Hip flexion ROM    0.36b <0.001 0.45b <0.001 0.34b <0.001 0.20 0.054 0.34b <0.001 0.36b <0.001 0.30b 0.003 0.28b 0.007
Hip extension ROM      0.42b <0.001 0.37b <0.001 0.35b <0.001 0.31b 0.002 0.30b 0.003 0.30b 0.003 0.42b <0.001
Knee flexion ROM        0.34b <0.001 0.20a 0.049 0.39b <0.001 0.22a 0.033 0.20 0.050 0.16 0.113
Hip internal rotation ROM          0.15 0.153 0.28b 0.007 0.44b <0.001 0.29b 0.005 0.24a 0.021
Hip external rotation ROM            0.16 0.113 0.15 0.162 0.24a 0.018 0.28b 0.006
Ankle dorsiflexion ROM              0.21a 0.040 0.22a 0.033 0.11 0.273
Ankle plantar flexion ROM                0.16 0.130 0.12 0.253
Knee extension strength                  0.70b <0.001
Knee flexion strength                   
  1. ROM range of motion
  2. a p < 0.05
  3. b p < 0.01