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Fig. 8. Average time histories of forces carried by the left forelimb. From each of
23 horses one jump was used in which the left forelimb limb was leading and
one in which it was trailing. Force magnitude F was estimated from
the distance between elbow and coronet, assuming that this part of the leg
operated like a linear spring with a stiffness of 166 N m-1
kg-1. For each jump, time was normalized separately for the
forelimb push and for the hindlimb push, and subsequently results were
averaged over horses. The top diagram shows the sum of the two curves, to be
compared with the calculated ground reaction force in
Fig. 4. Solid lines indicate
averages; broken lines indicate 95% confidence intervals.
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