Overall task completion time while walking. The overall task completion time decreased with larger targets. On average, the increase in target size of 20% between the small and the medium target size decreased the completion time by 20.51%. This effect was more than half the size smaller between the medium and the large target size (9.20%) A one-way repeated measures ANOVA between the different target sizes was performed to analyze the effects on task completion time. Mauchly’s test indicated that the assumption of sphericity had been violated (χ2(2) = 7.37, p < .05) and so a Greenhouse-Geisser correction was conducted (ε = .71) and revealed a significant effect of target size (F1.42, 21.29 = 9.381, p < .01, r = .59. Bonferroni post-hoc tests revealed a significant difference between the small and the large target size, CI.95 = 5706 ms (lower) 38672 ms (upper), p < .05