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Table 2 The results of the within-day reliability evaluation of the external measurement device presented in means and Standard Deviations given in degrees (M 1 = measurement occasion one and M 2 = measurement occasion 2), and calculated with Intraclass Correlation Coefficient2,1 (ICC2,1), 95% Confidence Interval (CI) of ICC and 95% CI between M 1 and M 2.

From: Measurements of knee rotation-reliability of an external device in vivo

Angle/applied torque M 1 m ± SD M 2 m ± SD ICC2,1 95% CI of ICC 95% CI of M 1 and M 2
90°/3 Nm 30 ± 6 33 ± 6 0.64 0.13-0.86 -5.1- -1.5
90°/6 Nm 56 ± 8 57 ± 7 0.73 0.43-0.87 -2.7-1.5
90°/9 Nm 76 ± 10 74 ± 10 0.79 0.54-0.91 -2.7-1.5
90°/End-feel 72 ± 8 73 ± 8 0.66 0.33-0.85 -3.4-0.9
60°/3 Nm 33 ± 8 37 ± 6 0.67 0.33-0.85 -0.6- -2.7
60°/6 Nm 58 ± 8 61 ± 9 0.76 0.50-0.90 0.4-4.4
60°/9 Nm 77 ± 10 78 ± 11 0.86 0.62-0.95 -2.6-1.3
60°/End-feel 74 ± 8 74 ± 9 0.90 0.75-0.96 -1.9-2.0
30°/3 Nm 24 ± 8 31 ± 9 0.59 0.21-0.81 -4.7- -0.2
30°/6 Nm 55 ± 10 56 ± 10 0.87 0.72-0.95 -2.7-1.2
30°/9 Nm 79 ± 12 77 ± 12 0.94 0.87-0.98 -0.4-9.9
30°/End-feel 78 ± 11 75 ± 11 0.83 0.61-0.93 -0.3-5.2
  1. Calculations were made at three different flexion angles (90°, 60° and 30°) with four different applied torques (3, 6 and 9 Nm as well as the examiner's apprehension of end-feel) of the total internal-external knee joint rotation