Fig. 5. A schematic of the virtual leg model representing the mean values for the variables measured during steady-speed (gray) and jumping (black) trials. (A) Leg angle of attack (_on), leg angle at take-off (_off), and the CoM velocity vector at take-off (v). The arrows represent the relative magnitude and angle () of velocity vector. (B,C) Initial leg length (L₀), path of the CoM (thick broken line), path of the of the CoM if the leg did not compress (thin broken line) and the point of maximum leg compression (L_max), as a function of normalized stance time (T) for steady-speed (B) and jumping (C) trials. The relative angles of the legs shown are representative of the mean leg angles observed, as is the relative amount of leg extension measured at take-off (L_ext).