FIG. 1.

Ground reaction forces (GRFs) of locomotion. (A) Representative example of the vertical GRFs recorded after C6 hemisection. The data show the mean (solid lines) of six steps±standard error of the mean (SEM) (dash lines) of the same animal, normalized to the stance duration. (B) Mean peak vertical forces for the complete group of animals. (C, D, E) Mean peak propulsion, braking, and lateral forces for the complete group of animals. The data (mean±SEM) are presented separately for each leg: RF, right forelimb; RH, right hind limb; LF, left forelimb; LH, left hind limb; and the columns show the pre-injury measurements and those at 5, 10, 20, 45, and 120 DPI in order from left to right, respectively. *p<0.05. *** p<0.001.