Hva sier forskningen om høver?
Jørgensen, G. H. M, Mejdell, C. M. and Bøe, K.E., Effects of hair coat characteristics on radiant surface temperature in horses, Journal of Thermal Biology 87 (2020) 102474
“Sport horses often are shod with shoes made of iron, which is a good conductor. Thus. it is expected that the conduction of heat between the hooves and the ground is larger in shod hooves […] Horses with iron shoes had a significantly lower surface temperature on their hind hooves (14.3 ±1.4 C) compared to horses without shoes (20.0 ±2.0 C) (F2,4 ¼ 9.4; P ¼ 0.031). The surface temperature of front hooves showed the same trend, but the difference was not significant (shod horses: 14.7 ±4.4 C vs. unshod horses: 20.1 ±1.9 C.”
Brunsting, J., et al, Can the hoof be shod without limiting the heel movement? A comparative study between barefoot, shoeing with conventional shoes and a split-toe shoe, The Veterinary Journal 246 (2019) 7–11
“Our results demonstrated a 36.3% decrease of heel expansion when a conventional shoe is used compared with the barefoot situation, which is similar to restrictions reported in other studies (Dyhre-Poulsen et al.,1994; Roepstorff et al., 2001; Yoshihara et al., 2010). It is reasonable to assume that this amount of restriction in heel movement observed with conventional shoeing techniques may affect hoof geometry and even orthopaedic health of the horse (Hinterhofer et al., 2001; Roepstorff et al., 2001).”
Proske, D. K. et al, Effects of barefoot trimming and shoeing on the joints of the lower forelimb and hoof morphology of mature horses, The Professional Animal Scientist 33:483–489
“An increase in stride length at the walk and trot was observed in shod horses, and this increased stride length could contribute to joint and tendon strain of the forelimb during locomotion. The reduction in the thickness of the digital cushion in shod horses could potentially alter the ability of the hoof to absorb ground concussion and disperse the weight of the horse, and the increase in joint circumference of shod horses indicates joint inflammation, which leads to swelling and potential lameness over time. This increase in joint swelling may be caused by the reduction of digital cushion involvement in the hoof. Therefore, the increase in blood flow, greater digital cushion depth, and shorter stride lengths in barefoot horses may indicate barefoot trimming as a healthier alternative to traditional methods.
Ramsey, G. D., Hunter, P. J. and Nash, M. P., The influence of tissue hydration on equine hoof capsule deformation and energy storage assessed using finite element methods, Biosystems Engineering, 111(2), 175–185
«This biophysical modelling study used a finite deformation elasticity model with anisotropic and heterogeneous material relations to show that capsule deflections and the energy stored in the capsule may be amplified by increasing hoof horn moisture content. The sensitivity of the model to variations in material parameters, which were estimated due to unavailability of data, was minor when compared to the overall model response. The ability to manipulate the energy stored by the hoof during locomotion may be useful for modifying impact energy transmission in the limb. However it remains for future work to determine optimal hydration levels for horses engaged in specific athletic activities.”
Ramsey, G. D., Hunter, P. J. and Nash, M. P., The effect of hoof angle variations on dorsal lamellar load in the equine hoof, Equine vet. J. (2011) 43 (5) 536-542
“This study indicates that raising the heels may increase the load on the dorsal laminar junction and vice versa. Therefore, hoofcare interventions that raise the hoof angle may not achieve the desired intention of reducing the load in the dorsal lamellae.”