Fig. 4. Representative limb segment (thigh and upper arm; A–B) and joint (C–F) angular trajectories during a stride for an elephant (Subject N, Table 1) moving at a fast walk/slow run (thin lines; 2.15±0.24 m s^–1, Fr=0.31; N=2) and a fast run (thick lines; 4.25±0.19 m s^–1, Fr=1.22; N=3) to show the effect of a doubling of speed on limb kinematics. Stance phase is shown in blue, swing phase in red.