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Am J Vet Res. 2004 Jul;65(7):945-50.

Evaluation of consistency of jumping technique in horses between the ages of 6 months and 4 years.

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1
Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 12, NL-3584 CM Utrecht, The Netherlands.

Abstract

OBJECTIVE:

To determine whether differences in jumping technique among horses are consistent at various ages.

ANIMALS:

12 Dutch Warmblood horses.

PROCEDURE:

Kinematics were recorded during free jumps of horses when they were 6 months old (ie, no jumping experience) and 4 years old (ie, the horses had started their training period to become show jumpers). Mean +/- SD height of the horses was 1.40 +/- 0.04 m at 6 months of age and 1.70 +/- 0.05 m at 4 years of age.

RESULTS:

Strong correlations were found between values from 6-month-old foals and 4-year-old horses for variables such as peak vertical acceleration generated by the hind limbs (r, 0.91), peak rate of change of effective energy generated by the hind limbs (r, 0.71), vertical velocity at takeoff (r, 0.65), vertical displacement of the center of gravity during the airborne phase (r, 0.81), and duration of the airborne phase (r, 0.70).

CONCLUSIONS AND CLINICAL RELEVANCE:

Although there are substantial anatomic and behavioral changes during the growing period, certain characteristics of jumping technique observed in naïve 4-year-olds are already detectable when those horses are foals.

PMID:
15281653
[Indexed for MEDLINE]
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