Table 6

Peak angles averaged over the three cycles during the Single Leg Jump test for BTS (considered the gold standard) and IPI software-Kinect configuration

TestMovementSystemMean (SD)95% CIICC(2,k) (95% CI)P valueSEMMDC
(deg)Lower (deg)Upper (deg)(deg)(deg)
SLJ_L (n=31)Hip flexionBTS−27.1 (16.4)−33.2−21.10.890 (−0.05 to 0.97)0.0004.312.0
iPi−36.6 (16.6)−42.7−30.5
Hip adductionBTS−19.0 (5.5)−21.0−17.00.826 (0.64 to 0.92)0.7442.97.9
iPi−18.7 (4.9)−20.5−16.9
Knee flexionBTS31.4 (10.6)27.535.30.951 (0.90 to 0.98)0.6943.08.3
iPi31.7 (8.7)28.534.9
Knee adductionBTS−16.5 (4.9)−18.3−14.70.883 (0.32 to 0.96)0.0001.74.7
iPi−14.0 (5.0)−15.9−12.2
SLJ_R (n=33)Hip flexionBTS−46.8 (11.8)−51.0−42.60.649 (−0.19 to 0.89)0.0005.014.0
iPi−60.7 (11.6)−64.8−56.6
Hip adductionBTS23.1 (5.5)21.225.00.901 (−0.04 to 0.97)0.0023.710.2
iPi26.1 (5.9)24.028.2
Knee flexionBTS27.5 (11.2)23.631.50.956 (0.91 to 0.98)0.5133.18.6
iPi28.1 (9.9)24.531.6
Knee adductionBTS18.8 (4.9)17.020.50.726 (–0.21 to 0.92)0.0002.05.5
iPi14.3 (4.5)12.615.9
  • ICC(2,k), intraclass correlation coefficient (absolute agreement); MDC, minimal detectable change calculated as SEMx1.96x√2. P<0.05; SEM, SE of the measure calculated as the square root of the residual mean square; SLJ_L, Single Leg Jump Left; SLJ_R, Single Leg Jump Right.