Figure 2.

A comparison of change in walking cycle. The traces (red butterfly plots) representing the trajectory of center of feet pressure (COP) on the instrumented treadmill (GHW Gait analysis & exercise system, GHiWell Co., Ltd., Korea). (A) Before treatment, the cyclogram depicted more forefoot contacts, irregular stride lengths, great variations of stepping locations (blue intersected area), and wider base of support. (B) After a course of chiropractic treatments, accurate foot stride, regular heel strike and symmetric COP crossover between strides were noted. The change of walking ability through pattern recognition correlated with patients’ gait stability.