Figure 1.

Gait Velocity. Gait velocity in the normal and dual task walking conditions (error bars represent one standard deviation). The difference in gait velocity between the normal and dual task walking conditions is statistically significant [F(1,40) = 61.713, p < 0.001]. The difference in gait velocity between older and younger subjects is statistically significant [F(1,40) = 90.247, p < 0.001].