TABLE 2. Comparison of Gait Parameters, Measured With AK and IMU-System, With Mean Values ± Standard Deviation and Range (min-max) During Gait Analysis on a Treadmill.
| Parameter | AK mean±SD (min-max) | IMU mean±SD (min-max) | p-values |
|---|---|---|---|
Cadence [steps
 min−1] |
107.6±9.3 (90-127) | 105.5±9.5 (84-139) | 0.005* |
| Stride time [s] | 1.11±0.1 (0.93-1.32) | 1.11±0.23 (0.83-1.36) | 0.616 |
| Single support time [s] | 0.35±0.08 (0.29-0.42) | 0.35±0.04 (0.25-0.45) | 0.826 |
| Double support time [s] | 0.21±0.07 (0.15-0.30) | 0.21±0.07 (0.14-0.45) | 0.081 |
| Stride length [cm] | 96.0±16.8 (32.9-139.5) | 95.3±19.4 (24.9-137.9) | 0.143 |
| Arm swing right [deg] | 24.7±11.5 (8.0-62.7) | 25.5±10.6 (7.4-71.8) | 0.732 |
| Arm swing left [deg] | 31.8±11.3 (12.8-76.0) | 28.0±10.5 (7.3-80.8) | 0.075 |
| Step width [cm] | 15.6±2.9 (10.7-22.11) | X | X |
| MoS ML [cm] | 9.8±3.34 (4.1-15.2) | X | X |
| MoS AP [cm] | 6.5±5.4 (1.3-13.5) | X | X |
*
=Significant difference from IMU (p<0.05), AK=Azure Kinect, IMU=Inertial Measurement Unit Diff=difference between IMU and AK; MoS=Margin of stability, ML=mediolaterai. AP=antepostenor; X=Not applicable