Modeling the Joint Stiffness Change by Pelvic Tightening Based on Alignment of Lumbar and Pelvis

摘要

This study investigated the feature quantity related to the stiffness of the lumbar joints in 19 subjects for the construction of a dynamic tightening force control system for Active Corset. We investigate the change of the alignment of pelvis and lumbosacral vertebrae from X ray image, which are expected to change due to pelvic tightening. As a result, we confirm the tendency that joint stiffness increases as the sacrum tilt forward due to pelvic tightening.