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Table 1 Inter-tester reliability and intra-tester reliability of knee joint angle measurements in sitting and supine

From: The reliability of knee joint position testing using electrogoniometry

Position Inter-tester reliability (n = 35) Intra-tester reliability (n = 37)
  ICC[2,10] SEM (°) ICC[3,10] SEM (°)
Sitting     
Neutral knee position - 2.31 - 1.21
Knee flexion position 1 0.79 1.48 0.87 0.90
Knee flexion position 2 0.68 2.97 0.86 1.25
Supine     
Neutral knee position - 1.97 - 0.80
Knee flexion position 1 0.71 2.03 0.75 1.51
Knee flexion position 2 0.58 3.55 0.76 1.74
Standing     
Neutral knee position - 1.61 - 1.61
Knee flexion position 1 0.57 3.20 0.87 1.37
Knee flexion position 2 0.80 1.94 0.88 1.31
  1. ICC = Intraclass correlation coefficient, SEM = standard error of measurement
  2. See the details of knee positions in text.