Search Results - "HOYT, D. F."

Effect of load on preferred speed and cost of transport by Wickler, S. J, Hoyt, D. F, Cogger, E. A, Hall, K. M

“…Equine Research Center and Departments of Animal and Veterinary Sciences and Biological Sciences, California State Polytechnic University, Pomona, California…”
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Energetic and kinematic consequences of weighting the distal limb by WICKLER, S. J., HOYT, D. F., CLAYTON, H. M., MULLINEAUX, D. R., COGGER, E. A., SANDOVAL, E., MCGUIRE, R., LOPEZ, C.

“…Summary Reason for performing study: It is well known that adding a load to a horse's back increases its energetic costs of locomotion, but the magnitude of…”
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Disuse atrophy in the hibernating golden-mantled ground squirrel, Spermophilus lateralis by Wickler, S J, Hoyt, D F, van Breukelen, F

“…Disuse (inactivity, bed rest, and spaceflight) may lead to a loss of muscle mass and a decrease in oxidative capacity in skeletal muscle. If such changes were…”
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Oxygen consumption (V̇O2) during trotting on a 10% decline by HOYT, D. F., WICKLER, S. J., GARCIA, S. F.

“…Summary Reasons for performing study: Although there have been reports of oxygen consumption measurements of horses running on the level and incline, there are…”
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Speed and Time‐Energy Budget for Locomotion in Golden‐Mantled Ground Squirrels by Kenagy, G. J., Hoyt, Donald F.

“…To determine the impact of locomotion on the total energy budget of a small mammal, we measured the frequency distribution of speeds and the time budget for…”
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Time of contact and step length: the effect of limb length, running speed, load carrying and incline by Hoyt, D F, Wickler, S J, Cogger, E A

“…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…”
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The energetics of the trot-gallop transition by Wickler, Steven J, Hoyt, Donald F, Cogger, Edward A, Myers, Gregory

“…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…”
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Moments and power generated by the horse (Equus caballus) hind limb during jumping by Dutto, Darren J, Hoyt, Donald F, Clayton, Hilary M, Cogger, Edward A, Wickler, Steven J

“…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…”
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A new model of avian embryonic metabolism by Hoyt, D F

“…A new model of avian embryonic metabolism is proposed that more accurately describes the available data. The model assumes that embryonic metabolism can be…”
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Preferred speed and cost of transport: the effect of incline by Wickler, S J, Hoyt, D F, Cogger, E A, Hirschbein, M H

“…Preferred speed is the behavioral tendency of animals to utilize a relatively narrow set of speeds near the middle of a much broader range that they are…”
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Hindlimb net joint energies during swing phase as a function of trotting velocity by CLAYTON, H. M., HOYT, D. F., WICKLER, S. J., COGGER, E. A., LANOVAZ, J. L.

“…Summary Net joint powers and energies have been described in walking horses during the swing phase of the stride in the fore‐ and hindlimb (Clayton et al…”
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Gait and the energetics of locomotion in horses by Hoyt, D.F, Taylor, C.R

“…It seems reasonable that quadrupeds should change gait from a walk to a trot to a gallop in such a way as to minimize their energy consumption. If metabolism…”
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Energy Costs of Walking and Running Gaits and Their Aerobic Limits in Golden-Mantled Ground Squirrels by Hoyt, Donald F., Kenagy, G. J.

“…We studied locomotion of field-caught golden-mantled ground squirrels (Spermophilus saturatus) on a motorized treadmill that was incorporated into a…”
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The Allometry of Osmotic and Ionic Regulation in Amphibia with Emphasis on Intraspecific Scaling in Larval Ambystoma tigrinum by Pruett, Susan J., Hoyt, Donald F., Stiffier, Daniel F.

“…Allometric analyses were carried out for osmotic flux, Na⁺ fluxes, urine flow, and glomerular filtration rate (GFR) for the tiger salamander, Ambystoma…”
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Stride parameters and hindlimb length in horses fatigued on a treadmill and at an endurance ride by WICKLER, S. J., GREENE, H. M., EGAN, K., ASTUDILLO, A., DUTTO, D. J., HOYT, D. F.

“…Summary Reason for performing study: The relationship between fatigue and stride and/or muscle stiffness requires further study. Objective: To measure stride…”
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Evaluation of shock attenuation in the forelimb of horses wearing boots and wraps by Luhmann, L.M., Wickler, S.J., Hoyt, D.F., Kobluk, C.N., Cogger, E.A.

“…High frequency, high amplitude shock waves, believed to contribute to detrimental joint and bone changes, are generated each time the hoof strikes the ground…”
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Joint Stiffness On Different Inclines During Running: A Pilot Study by Dutto, Darren, Hoyt, D. F., Cogger, E. A., Wickler, S. J.

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Joint Stiffness On Different Inclines During Running: A Pilot Study by Dutto, Darren, Hoyt, D. F., Cogger, E. A., Wickler, S. J.

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Effect of trotting speed, load and incline on hindlimb stance-phase kinematics by HOYT, D. F., MOLINARI, M., WICKLER, S. J., COGGER, E. A.

“…Summary The objective was to understand how the stance‐phase kinematics of the hindlimb of trotting horses change with speed under 3 conditions (level, loaded…”
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Biomechanical and energetic determinants of the walk-trot transition in horses by Griffin, Timothy M, Kram, Rodger, Wickler, Steven J, Hoyt, Donald F

“…We studied nine adult horses spanning an eightfold range in body mass (M(b)) (90-720 kg) and a twofold range in leg length (L) (0.7-1.4 m). We measured the…”
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