Fig. 2

Pelvic feature and stance time correlation with hip angle features. A Pelvic tilt angle at foot strike (PTθ) and hip angle at foot-strike (Hθ_FS), B timing of pelvic angular velocity zero-crossing in early stance (PR_ZC) and hip angle range of motion during that period (ΔH), C timing of pelvic tilt angular velocity first zero crossing in midstance (PT_ZC) and hip max extension time (Hτ_E), D timing of pelvic tilt angular velocity first zero crossing in mid-swing (PT_ZC) and hip max flexion time (Hτ_F), E stance time (τs) and hip max flexion time (Hτ_F)