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Table 4 Concurrent validity of the spatiotemporal and kinematic parameters with clinical measures

From: Gait analysis with the Kinect v2: normative study with healthy individuals and comprehensive study of its sensitivity, validity, and reliability in individuals with stroke

 Dynamic gait index1-min walking test10-m walking test
Speed (m/s)r = 0.793**r = 0.754**r = −0.675**
Stride length (m)r = 0.822**r = 0.684**r = −0.726**
Stride time (s)r = − 0.645**r = − 0.608**r = 0.596**
Step length (m)r = 0.806**r = 0.707**r = − 0.721**
Step time (s)r = −0.658**r = − 0.622**r = 0.602**
Step width (m)r = −0.400**r = −0.342**r = 0.332**
Cadence (step/min)r = 0.614**r = 0.654**r = −0.557**
Step asymmetry (m)r = −0.092r = −0.028r = 0.053
Swing time (s)r = 0.376**r = 0.274*r = −0.475**
Double support time (s)r = −0.554**r = −0.551**r = 0.505**
Trunk obliquity (°)r = −0.539**r = −0.520**r = 0.571**
Trunk tilt (°)r = −0.599**r = −0.427**r = 0.688**
Trunk rotation (°)r = 0.136r = −0.088r = 0.014
Pelvic obliquity (°)r = −0.180r = −0.147r = 0.073
Pelvic tilt (°)r = −0.344**r = −0.297*r = 0.317**
Pelvic rotation (°)r = −0.056r = 0.021r = 0.049
Hip abduction-adduction (°)r = −0.342**r = −0.184r = 0.281*
Hip flexion-extension (°)r = 0.436**r = 0.437**r = −0.241*
Hip height variation (cm)r = 0.191r = 0.368**r = −0.173
Knee valgus-varus alignment (°)r = 0.034r = 0.080r = −0.037
Knee flexion-extension (°)r = 0.255*r = 0.135r = −0.296**
Knee height variation (cm)r = 0.013r = −0.036r = −0.126
Ankle height variation (cm)r = 0.436**r = 0.536**r = −0.342**
  1. Significant correlations of variable strength emerged between spatiotemporal and kinematic parameters obtained by the Kinect v2-based gait analysis and standardized clinical scales. *: p < 0.05. **: p < 0.01