Fig. 1. Ground reaction force (GRF) patterns are similar to those typically reported for other quadrupeds. Both vertical (A,C,E,G) and horizontal (B,D,F,H) forces are depicted for the level and the incline. Thicker lines represent faster (>4.5 m s^–1) and the thinner lines represent slower (<2.75 m s^–1) speeds. Forces generated by the forelimb increased as speed increased for both the level (A) and incline (C) conditions. Hindlimb vertical forces tended to remain constant on the level (E), but increased on the incline (G). Hindlimb forces were higher on the incline than on the level.