Characterizing local dynamic stability of spine sub-regions during repetitive trunk movements

With recent developments in the resolution with which spine skin-surface motion is tracked, the opportunity presented itself to calculate dynamic spine stability across smaller sub-regions of the lumbar spine. Additionally, the effect of constraining pelvis motion on dynamic spine stability isn’t completely clear. Study results demonstrated that the most caudal spine region behaved in the most stable manner, and that constraining the pelvis led to a consistent decrease in dynamic spine stability at all levels during repetitive flexion movements.