Figure 7 : Quantitative characterization of timing of contribution using the Critical Point Method [17].

The timing of contribution is characterized by comparing motion onsets: point 1 (8) for lumbar and point 2 (7) for pelvic motion during forward bending (backward return); motion termination: point 5 (12) for lumbar and point 6 (11) for pelvic motion during forward bending (backward return); and times of peak velocity: point 3 (10) for lumbar and point 4 (9) for pelvic motion during forward bending (backward return).

Bazrgari et al.Physical Therapy and Rehabilitation  2016 3:5DOI : 10.7243/2055-2386-3-5