Skip to main content

Table 2 Agreement and repeatability—Kinect-M

From: Automated extraction and validation of children’s gait parameters with the Kinect

Gait parameters \(\rho\) CCC (95 % CI) ICC (95 % CI) Bias (95 % LoA) PE (%) Repeatability
Absolute Mean %
Left step time (s) 0.926 0.91 (0.81–0.96) 0.95 (0.89–0.98) 0.012 (−0.048 to 0.072) 15.01 0.050 12.19
Right step time (s) 0.948 0.90 (0.81–0.95) 0.95 (0.88–0.98) −0.020 (−0.062 to 0.023) 11.29 0.071 18.91
Cadence (strides/min) 0.838 0.83 (0.66–0.92) 0.83 (0.65–0.92) −1.230 (−21.259 to 18.798) 25.83 20.75 13.44
Swing time (s) 0.939 0.83 (0.69–0.91) 0.91 (0.80–0.95) −0.023 (−0.060 to 0.013) 11.92 0.050 16.66
Left stride length (cm) 0.848 0.79 (0.59–0.90) 0.89 (0.75–0.95) −3.583 (−16.447 to 9.282) 17.85 10.208 14.23
Right stride length (cm) 0.920 0.85 (0.70–0.93) 0.92 (0.80–0.95) −4.085 (−13.009 to 4.840) 12.46 10.107 14.23
Left step length (cm) 0.900 0.86 (0.74–0.93) 0.93 (0.82–0.96) −0.681 (−6.927 to 5.565) 16.94 4.227 11.34
Right step length (cm) 0.792 0.73 (0.50–0.86) 0.92 (0.82–0.96) −2.281 (−9.947 to 5.385) 21.76 4.858 13.96
Velocity (cm/s) 0.855 0.84 (0.68–0.92) 0.85 (0.69–0.93) −3.036 (−13.904 to 7.832) 23.33 12.796 13.96
  1. Pearson’s correlation (\(\rho\)), CCC, ICC, Bland-Altman bias and LoA’s, percentage error (PE) (computed as \(100 \times (4 \text { SD of bias})/ (\text {Mean}_{\text {Kinect-M}} + \text {Mean}_{\text {GAITRite}})\)), and repeatability coefficients for the manual estimation method (Kinect-M)