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Subjects' mean gait performance and the respective variability measures, separated by condition (ST walk: single-task walking, DT-CI: walking + cognitive interference, DT-MI: walking + motor interference) for (a) gait velocity, (b) stride length, (c) stride time, (d) CV-gait velocity, (e) CV-stride length, and (f) CV-stride time. Circles represent mean values and error bars the respective 95% confidence interval.
