Docstoc

TITULO

Document Sample
TITULO Powered By Docstoc
					    THE EFFECT OF 6o TOE ELEVATION ON STRIDE KINEMATICS OF THE
                             FORELIMB IN HORSES AT TROT
Lina Maria Wehrle Gomide 1 , Raquel Mincarelli Albernaz1, Deborah Penteado
Martins Dias1, Álvaro de Oliveira Paiva Neto1, Antonio de Queiroz Neto1, José Corrêa
de Lacerda Neto1
Via de acesso Paulo Donato Castelanne, s/n / Jaboticabal–SP– Brasil / 14884-900 /
linagomide@gmail.com
Introduction: Changes in hoof wall angle have been widely used as part of the
treatment of locomotor diseases and may also be applied in an attempt to increase
performance. Horseshoeing affects whole limb movement and function, including
tensions in tendons and ligaments. Objectives: To investigate kinematics changes due
to six degrees toe elevation in forelimb of trotting horses. Methods2: Six adult sound
Arabian horses were used, filmed with two reflexive markers on dorsal and lateral
surfaces of left forelimb hoof. Images of two digital video cameras were obtained at trot
on a treadmill after a week adaptation period. In the first week horses were shod with
flat shoes and than with six degrees toe elevation. Statistical analysis used t-Student test
at 5% significance. Results: Statistical analysis of groups showed no statistical
significance (P<0.05) so animals were analyzed individually. There was a decrease in
stance and swing phases in one horse, two horses had an increase in stance phase and
two horses an increase in swing phase. Increased stride length, associated with a
decrease in maximal vertical displacement of the hoof and stride frequency, occurred in
two horses. One horse showed increase in both stride length and maximal vertical
displacement of the hoof while another had only a decrease in stride length. Discussion:
Studies state that changes in kinematics variables - when they occur - are similar
between horses. In this study variations caused by toe elevation were extremely
different, even opposite, in the animals studied. The increase in stride length associated
with a decrease in frequency may enhance horse’s ability during race but the increase in
stance phase may also increase loading in the limb and induce locomotor’s injuries.
Conclusions: This investigation do not provide basis for general clinical or
performance applications of this farriery technique, which could be harmful for the
locomotor apparatus.
1
    Faculdade de Ciências Agrárias e Veterinárias – UNESP – Campus de Jaboticabal
2
    Ethical approval: Comissão de Ética e Bem Estar Animal (CEBEA) – Protocol # 028057-08

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:1
posted:12/18/2011
language:
pages:1