Gait Features | SI parameters [%] | Multiple regression model | F-value | p-value | \({R}^{2}\) | \(Adjusted {R}^{2}\) |
---|---|---|---|---|---|---|
Spatiotemporal characteristics | Step length | \({SI}_{SL}=-0.45{VAF}_{AS}+0.54{RF}_{AS}\) | 8.26 |  < 0.01 | 56.0% | 49.2% |
Step time | – | – | – | – | – | |
Limb kinematics | Leg extension angle | \({SI}_{LEA}=0.63{RF}_{AS}\) | 9.16 |  < 0.01 | 39.6% | 35.2% |
Limb length | \({SI}_{LL}=0.55{VAF}_{AS,3}\) | 5.96 |  < 0.05 | 29.9% | 24.8% | |
Footpath area | \({SI}_{FPA}=0.60{VAF}_{AS,3}\) | 7.73 |  < 0.05 | 35.6% | 31.0% | |
Joint kinematics (sagittal plane) | Hip flex/ex | \({SI}_{Hip,FE}=0.70{RF}_{US}\) | 14.0 |  < 0.01 | 50.0% | 46.4% |
Knee flex/ex | \({SI}_{Knee,FE}=0.64{VAF}_{AS,3}\) | 9.91 |  < 0.01 | 41.4% | 37.3% | |
Ankle dorsi/plantar | – | – | – | – | – | |
Joint kinematics (other planes) | Hip abd/add | \({SI}_{Hip,AA}=0.48{VAF}_{US,4}+0.48{VL}_{AS}\) | 6.08 |  < 0.05 | 48.3% | 40.4% |
Hip int/ext ro | \({SI}_{Hip,IE}=-0.62{TA}_{US}\) | 8.93 |  < 0.01 | 38.9% | 34.6% |