Fig. 6

Calculated hip angle throughout the gait cycle. PR_ZC: pelvic rotation zero-crossing time, PT_ZC: pelvic tilt zero-crossing time, Hτ_E: hip max extension time, τ_s: stance time, Hτ_F: hip max flexion time. Sequences are foot-strike to PR_ZC (sequence 1, solid red line), PR_ZC to PT_ZC (sequence 2, solid black line), PT_ZC to Hτ_E (sequence 3, solid blue line), Hτ_E to τ_FO (sequence 4, red dashed line), τ_FO to Hτ_F (sequence 5, blue dashed line), and Hτ_F to the end of the gait cycle (sequence 6, black dashed line)