Fig. 5

Step width variability and mean hip abductor EMG activity. Step width variability and mean hip abductor (Gluteus Medius) EMG activity during stance phase of the transition period for Transition trials and corresponding time periods for Null trials. a Participants with iSCI showed significantly higher step width variability during Transitions 1 and 2 and decreased variability to Null trial levels by Transition 3, demonstrating savings in control performance. b Participants with iSCI showed a non-significant trend of decreasing hip abductor activity with repetitions of transitions. c Non-impaired participants did not change step width variability with repetitions of transitions. d Non-impaired participants significantly decreased hip abductor activity with repetitions of transitions, exhibiting slacking. Trials: N1 = Null 1, T1 = Transition 1, T2 = Transition 2, T3 = Transition 3, N2 = Null 2