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Keywords: horse
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Journal Articles
J Exp Biol (2020) 223 (7): jeb219154.
Published: 1 April 2020
... that metabolically healthy ponies have greater microbial stability when challenged with this dietary change, compared with ponies with insulin dysregulation. 16S rRNA Hindgut Horse Glucagon-like peptide-1 Equine metabolic syndrome Endocrine The equine gastrointestinal microbiome, like...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (16): jeb204107.
Published: 23 August 2019
...Zoe T. Self Davies; Andrew J. Spence; Alan M. Wilson ABSTRACT The horse has evolved to gallop economically at high speed. Limb force increases with speed but direct measures of limb ground reaction forces (GRFs) at gallop are sparse. This study reports GRFs for multiple limbs, using force plates...
Journal Articles
J Exp Biol (2011) 214 (1): 104–112.
Published: 1 January 2011
.... This research suggests that breed-specific growth rates influence the maturation of the neural networks generating chewing rhythm, which may be altered because of changes in jaw mass during early postnatal growth. Here, we explored the intraspecific scaling of CCD within a sample of adult horses ranging from...
Journal Articles
Journal Articles
J Exp Biol (2008) 211 (24): 3836–3849.
Published: 15 December 2008
..., thoroughbred horses and elite human athletes. In each case, an absolute speed limit is definable, and the current record approaches that predicted maximum. While all such extrapolations must be used cautiously, these data suggest that there are limits to the ability of either natural or artificial selection...
Journal Articles
Journal Articles
J Exp Biol (2008) 211 (6): 935–944.
Published: 15 March 2008
... locomotion would enhance our understanding of locomotor powering during changes in terrain. This study measured foot-on and foot-off times from galloping horses using a previously validated system of limb-mounted accelerometers and a global positioning system data logger. A detailed track survey provided...
Journal Articles
J Exp Biol (2007) 210 (16): 2795–2800.
Published: 15 August 2007
... a continuous scale of colours or does the neutral point divide their chromatic space into two colour categories, i.e. into colours of either short or long wavelengths? We trained horses to different colour combinations in a two-choice behavioural experiment and tested their responses to the training and test...
Journal Articles
J Exp Biol (2006) 209 (21): 4389–4397.
Published: 1 November 2006
.... Rev . 3 , 10 -12. Barrey, E., Galloux, P., Valette, J. P., Auvinet, B. and Wolter,R. ( 1993 ). Stride characteristics of overground versus treadmill locomotion in the saddle horse. Acta Anat. Basel 146 , 90 -94. Björk, G. ( 1958 ). Studies on the draught forces of horses: development...
Journal Articles
J Exp Biol (2006) 209 (19): 3742–3757.
Published: 1 October 2006
... with fluctuations in mechanical energy, even in the most efficient animals. In this study we investigate the exchanges between different forms of mechanical energy involved in high-speed gallop locomotion in Thoroughbred race horses during over-ground locomotion using innovative, mobile data collection techniques...
Journal Articles
J Exp Biol (2006) 209 (3): 455–465.
Published: 1 February 2006
... that they compensate for the effects of size differences. Here we apply this principle to understanding the effects of size on locomotion within a species: the domestic horse. We predict that, without any factor to compensate for size differences, detectable deviations from dynamically similar locomotion would occur...
Journal Articles
J Exp Biol (2005) 208 (13): 2503–2514.
Published: 1 July 2005
... position using a modified version of a commercial inertial orientation sensor that combines accelerometers, gyroscopes and magnetometers, thus giving a full set of movement parameters (displacement,velocity and acceleration in three dimensions). The 35 g sensor was attached over the spine of a horse...
Journal Articles
J Exp Biol (2004) 207 (21): 3639–3648.
Published: 1 October 2004
... rufus ), where it resulted in a 36% underestimation of GRFz predicted using equation 1 ( Kram and Dawson, 1998 ). The shape of the GRF curve in the horse, where there is an apparently simpler lever system, has not been compared to a pure sine wave. The proportion of the body mass supported...
Journal Articles
J Exp Biol (2004) 207 (20): 3507–3514.
Published: 15 September 2004
...-to the hindlimbs in quadrupeds. However, there are no whole-animal kinetic measurements of incline locomotion. Based on previous related research, we hypothesized that there would be a shift in forces to the hindlimb. The present study measured the force produced by the fore- and hindlimbs of horses while trotting...
Journal Articles
J Exp Biol (2004) 207 (4): 667–674.
Published: 1 February 2004
...Darren J. Dutto; Donald F. Hoyt; Hilary M. Clayton; Edward A. Cogger; Steven J. Wickler SUMMARY The ability to jump over an obstacle depends upon the generation of work across the joints of the propelling limb(s). The total work generated by one hind limb of a horse and the contribution...
Journal Articles
J Exp Biol (2003) 206 (9): 1557–1564.
Published: 1 May 2003
...Steven J. Wickler; Donald F. Hoyt; Edward A. Cogger; Gregory Myers SUMMARY Two studies have focused on potential triggers for the trot–gallop transition in the horse. One study concluded that the transition was triggered by metabolic economy. The second study found that it was not metabolic factors...
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J Exp Biol (2000) 203 (14): 2195–2200.
Published: 15 July 2000
... for this behavior include minimizing musculoskeletal stresses and maximizing energetic economy. If preferred speed is determined by energetic economy (cost of transport, C T ), then shifts in preferred speed should produce shifts in C T . To test this hypothesis, preferred speeds were measured in trotting horses...
Journal Articles
J Exp Biol (2000) 203 (2): 221–227.
Published: 15 January 2000
...Donald F. Hoyt; Steven J. Wickler; Edward A. Cogger ABSTRACT Using published values for twelve species of birds and mammals, we investigated the effects of limb length and running speed on time of contact and step length. In addition, we measured the time of contact in horses trotting up a 10...