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Fig. 2. Time histories of the measured and calculated total vertical ground
reaction force (FRy,total), as well as of the measured and
calculated vertical ground reaction force on each of the limbs
(FRy,i), of three horses at trot. Calculated
FRy,i(t) were obtained from distal limb lengths,
using the forcelength relationships of the distal limbs determined with
the help of calculated values of FRy,i and limb lengths at
trot. Dotted horizontal lines indicate half the peak value of
FRy,total. FL, left forelimb; FR, right forelimb; HL, left
hindlimb; HR, right hindlimb.