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Table 2 Speed, hip kinematics in the sagittal and frontal planes and hip kinetics in the frontal plane, for the 10 males and 10 females in each group, as recorded by the 2 examiners

From: Different reliability of instrumented gait analysis between patients with unilateral hip osteoarthritis, unilateral hip prosthesis and healthy controls

  Healthy, examiner 1 Healthy, examiner 2 OA, examiner 1 OA, examiner 2 THA, examiner 1 THA, examiner 2
Mean 95% CI Mean 95% CI Mean 95% CI Mean 95% CI Mean 95% CI Mean 95% CI
Speed m/s 1.18 1.1 to 1.2 1.19 1.1 to 1.3 0.97 0.88 to 1.1 0.95 0.84 to 1.1 1.1 1 to 1.2 1.1 0.99 to 1.2
Hip extension degrees −10.8 −13.6 to −8.0 −5.2 −8.8 to −1.6 3.4 −1.9 to 8.6 7.0 1.2 to 12.7 −1.6 −6.5 to 3.3 3.3 −1.9 to 8.5
Hip flexion degrees 28.8 26.5 to 31.1 34.9 31.3 to 38.5 32.7 29 to 36.4 35.7 31.7 to 39.6 33.8 30 to 37.7 37.8 33.6 to 41.9
Hip ext-flex range degrees 39.7 37.6 to 41.7 40.1 37.9 to 42.3 29.3 26.2 to 32.5 28.7 25.6 to 31.9 35.4 32.9 to 38 34.5 31.7 to 37.3
Hip adduction degrees −5.5 −7.0 to −4.1 −5.0 −6.8 to −3.2 −3.4 − 5.5 to −1.3) −2.5 −4.3 to −0.6) −5.0 −6.5 to −3.5) −2.6 − 4.1 to − 1.2)
Hip abduction degrees 6.1 4.8 to 7.4 7.6 5.7 to 9.4 4.5 2.7 to 6.3 5.5 3.6 to 7.3 4.7 3.2 to 6.2 7.7 6.3 to 9.1
Hip add-abd range degrees 11.6 9.6 to 13.5 12.5 10.6 to 14.5 7.9 6.6 to 9.2 7.9 6.5 to 9.4 9.7 8.4 to 11.1 10.4 8.8 to 11.9
Hip add moment Nm/kg 0.82 0.77 to 0.86 0.9 0.85 to 0.97 0.7 0.54 to 0.87 0.74 0.58 to 0.90 0.79 0.73 to 0.85 0.86 0.78 to 0.94
Hip abd moment Nm/kg −0.24 −0.28 to −0.19 −0.23 −0.27 to − 0.19 −0.2 − 0.22 to − 0.14) −0.18 − 0.21 to − 0.14) −0.19 − 0.22 to − 0.16) −0.19 − 0.20 to − 0.16)
Hip add-abd moment range Nm/kg 1.05 0.97 to 1.1 1.1 1.06 to 1.2 0.9 0.73 to 1.05 0.9 0.77 to 1.1 0.98 0.91 to 1.04 1.05 0.97 to 1.15
  1. Mean and 95% confidence interval of mean (CI) in Healthy (H), Hip osteoarthritis (OA) and Total hip arthroplasty (THA) subjects