Step Width, Step Length, and Step Time.

Each box plot is collapsed across limb side to show main effect of step on step width, step length and step time. Each box represents 14 subjects’ data. a) Step width, Known condition. The n-2 step width was significantly larger than the control step (contralateral to the target). b) Step width, Unknown condition. Step width was significantly increased for both steps immediately preceding the “GO” signal compared to the control step. c) Step length, Known condition. There was a significant effect of step on step length, but no pairwise comparisons vs. the control step were significant. d) Step length, Unknown condition. There were no significant effects of step on step length. e) Step time, Known condition. Compared to the control step, step time was significantly shorter during the n-1 step. f) Step time, Unknown condition. There was a significant effect of step on step time, but neither the go-2 or go-1 steps were significantly different from the control step. (*)Step is significantly different (p<0.05) from control.