Fig. 3. Time of contact (in ms) decreased with speed at the trot (open symbols) for both the level (circle) and incline (triangle and broken lines). The transition speeds are denoted for incline and level running by a gray bar. The left side of the bar represents the fastest speed at which the horses would trot for a 1-min period, and the right side of the bar represents the lowest speed at which the horses would gallop for a 1-min period. The energetically optimal transition speed (EOTS) is denoted by an asterisk with the gray bar. Values are means ± 1 S.D.

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