Effects of action observation on learning non-weight-bearing gait with crutches

Abstract

Action observation (AO) has been used to improve rehabilitation outcomes. We examined the effects of AO gait training on the acquisition of a non-weight-bearing (NWB) gait with crutches. Eighteen healthy young male participants were assigned to control (n = 9) and AO groups (n = 9). All subjects were instructed to walk with crutches at a comfortable speed on a 10-m walkway (10 trials). Participants received a verbal explanation of the experimental task (NWB gait with crutches), after which, those in the AO group watched a video of another person performing the task. An accelerometer was positioned on the third lumbar vertebra and used to measure the trunk acceleration during the experimental task. Gait speed and acceleration root mean squares (RMS) were calculated during the 1st, 5th, and 10th trials for each group. The two-way ANOVA for acceleration RMS revealed significant main effects of trial and group, as well as a significant trial by group interaction. During the first trial, fewer trunk fluctuations were observed in the AO group compared to that in the control group. Thus, AO is effective in improving NWB gait training with crutches during the early phase of acquisition.

Keywords

• action observation
• motor learning
• non-weight-bearing
• rehabilitation