Correction to: Using gait robotics to improve symptoms of Parkinson’s disease: an open-label, pilot randomized controlled trial

Figure 4.

—Six-Minute Walk Test (6MWT) change scores. A) Bars represent mean values and error bars represent ±1 standard deviation. Omnibus between-subjects ANOVA test P value (*significant at P<0.05) is included above the bar chart, and significant within-subjects P values (**significant at P<0.017) include above the bar. B) Participant change scores ranked within groups.