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Fig. 5. Percentage differences against leg angle for (A) horizontal position x, (B) vertical position y, (C) horizontal velocity Vx, (D) vertical velocity Vy, (E) horizontal acceleration Ax, (F) vertical acceleration Ay, (G) resultant leg force F and (H) total mechanical energy ME. Note the y-axis scale varies for each subplot. The grey bars represent solutions within the leg angles used by animals.