Figure 5

Estimation of reaching steady state gait velocity values. Two typical examples of SP TM trials: one without the presence of visual virtual flow (EXPERIMENT A - black dots), and one in the presence of virtual visual flow (EXPERIMENT B gray dots). The respective exponential functions are depicted (solid - and dashed - lines, respectively). In these examples the estimated steady state is higher for the example from EXPERIMENT B (1.66 m/s) and lower for the example from EXPERIMENT A (1.42 m/s), with twice as higher curvature estimation for the former (0.19 vs. 0.09 1/m). It can be seen that in agreement with these estimations, the D₉₅ value is about half in the example from EXPERIMENT B (19.9 m gray arrow head) as compared to the example from EXPERIMENT A (45.1 m). Refer to Table 2, for group values and statistical comparisons.