Figure 8. Effect of leg length on the effective step length.

The angle of contact with the ground (θ) was computed from L_ce and the leg length (l) (see inset, top left), and plotted as a function of running speed for each age group. It can be seen that the effective step length is largely determined by the length of the leg. Dotted lines indicate the adult trend (Table 1, bottom row). Other indications as in Fig. 3.