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Fig. 5. Stride parameters in the forelimbs (filled squares) and hindlimbs (filled
triangles) of horses trotting on the level. (A) Stride period decreased with
speed but was the same in both limbs. There were differences between the limbs
for all of the other parameters (B-F). (B) Swing time is shorter for the
forelimb and does not change with speed but it decreases with speed in the
hindlimb. (C) Time of contact is longer for the forelimb and decreases with
speed in both limbs. As a consequence of the longer time of contact in the
forelimb (C), step length (D) is longer in the forelimb, the rate of force
application (E) is lower, and duty factor (F) is larger. Notice that duty
factor is greater than 0.5 in the forelimb at a speed of 2.5 m
s-1.
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