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Table 3 Means, standard deviation and limits of agreement for the intra-tester reliability of knee joint angle measurement

From: The reliability of knee joint position testing using electrogoniometry

Measures Mean1(SD) (°) Mean2(SD) (°) Mean Diff(SD) (°) Lower limit (°) Upper limit (°)
Sitting      
Neutral knee 3.41(2.17) 3.54(1.99) -0.12(2.09) -4.30 4.06
Knee flexion 1 18.28(3.69) 18.64(3.66) -0.35(2.50) -5.35 4.65
Knee flexion 2 30.83(4.83) 31.11(4.85) -0.27(3.37) -7.01 6.47
Supine      
Neutral knee 2.24(1.68) 2.17(1.57) 0.07(1.51) -2.95 3.09
Knee flexion 1 16.83(3.77) 16.94(3.08) -0.11(3.06) -6.23 6.01
Knee flexion 2 27.18(4.07) 28.15(4.23) -0.97(3.58) -8.13 6.19
Standing      
Neutral knee 3.44(2.78) 2.93(2.57) 0.5(2.72) -4.94 5.94
Knee flexion 1 12.16(5.85) 12.41(4.98) -0.25(3.74) -7.73 7.23
Knee flexion 2 27.60(6.35) 27.42(5.63) 0.18(3.86) -7.54 7.90
  1. Mean1 = Mean of the first measurement, Mean2 = mean of the second measurement, Mean Diff = mean difference, SD = standard deviation