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Fig. 3. Joint moments (relative to body mass) are presented. (A) Observed moments at the hip for each of the test animals. Each curve represents the mean of the trials for that animal, with the number of trials ranging between five and eight for the different animals. The five curves are very similar across animals. (B) Moments for the MP (metatarsophalangeal), ankle, knee and hip joints of the hind limb. Each curve represents the mean of 29 trials (solid line) ± S.D. (shaded area) across all horses. For both plots, positive values represent extensor moments and negative values represent flexor moments for each joint.