A collaboration between: the Equine Research Center, Biological Sciences, and Kinesiology and Health Promotion

Publications | Abstracts | In Preparation | 

 

Publications

Wickler, S.J., Hoyt, D.F., Cogger, E.A., and Hirschbein, M. Preferred speed and cost of transport: The effect of incline. J. Exp. Biology, 203: 2195-2200. (2000).

Hoyt, D.F., Wickler, S.J., and Cogger, E.A. Time of contact and step length: The effect of limb length, running speed, load carrying and incline. J. Exp. Biology, 203:221-227. (2000).

Wickler, S.J., Hoyt, D.F., Cogger, E.A., and Hall, K. The effect of load on preferred speed and cost of transport. J. Appl. Physiology, 90:1548-1551. (2001).

Clayton, H. M., Hoyt, D. F., Wickler, S. J., Lanovaz, J. L.. Hind limb net joint energies as a function of trotting speed. Equine Exercise Physiology 6, Equine Vet. Journal, Suppl. 34:363-367.( 2002).

Hoyt, D. F., Molinari, M., Wickler, S. J., Cogger, E. A.. The effect of speed, load and incline on hindlimb kinematics of the trotting horse. Equine Exercise Physiology 6, Equine Vet. Journal, Suppl. 34:330-336. (2002).

Wickler, S. J., Hoyt, D. F., Cogger, E. A., and McGuire, R. The cost of transport in an extended trot. Equine Exercise Physiology 6, Equine Vet. Journal, Suppl. 34:126-130. (2002).

Wickler, S.J., Hoyt, D. F., Cogger E. A., and Myers, G. The energetics of the trot-gallop transition. J. Exp. Bio., 206:1557-1564. (2003).

Dutto, D.J., Hoyt, D.F., Clayton H.M., Cogger E.A, and Wickler S.J. Moments and power generated by the horse (Equus caballus) hind limb during jumping. J. Exp. Bio. 207:667-674. (2004).

Dutto, D.J., Hoyt, D. F., Cogger, E. A., and Wickler, S.J. Ground reaction forces in horses trotting up an incline and on the level over a range of speeds. J. Exp. Biology 207:3507-3514. (2004)

Wickler, S.J., Hoyt D.F., Clayton H.M., Mullineaux D.R., Cogger, E.A., Sandoval, E., McGuire, R. and Lopez, C. The Energetic And Kinematic Consequences Of Weighting The Distal Limb. Equine Vet Journal 36:772-777. (2004)

Hoyt, D.F., Wickler, S.J., Biewener, A.A., Cogger, E.A., and De La Paz, K.L..  In Vivo Muscle Function vs Speed: I.  Muscle Strain In Relation To Length Change Of The Muscle-Tendon Unit. J. exp. Biol. 208:1175-1190. (2005)

Wickler, S.J., Hoyt, D.F., Biewener, A.A. Cogger, E.A., and De La Paz, K.L. In Vivo Muscle Function Vs. Speed: Ii. Muscle Function Trotting Up An Incline. J. exp. Biol. 208:1191-1200. (2005)

 

 

Abstracts
R.F. McGuire*, S.J. Wickler, D.F. Hoyt and E.A. Cogger. The effect of limb mass distribution on the energetic cost of locomotion in the horse. Society for Integrative and Comparative Biology, Atlanta, GA, January 2000. American Zoologist 39(5):64A
D. F. Hoyt*, S. J. Wickler, and E. A. Cogger. Time of contact and step length are a function of running speed and leg length. Society for Integrative and Comparative Biology, Atlanta, GA, January 2000. American Zoologist 39(5):106A
K.L. De La Paz*, D.F. Hoyt, E.A. Cogger and S.J. Wickler. The effects of speed and incline on function of the gluteus medius during trotting in the horse. Society for Integrative and Comparative Biology, Atlanta, GA, January 2000. American Zoologist 39(5):64A, 1999.
S.A. Magana*, D.F. Hoyt, S.J. Wickler, E.A. Cogger, and A.A. Biewener. The effects of speed, load-carrying and incline on function of the vastus lateralis during trotting in the horse. Society for Integrative and Comparative Biology, Atlanta, GA, January 2000. American Zoologist 39(5):64A, 1999?
Cogger, E. A., Hoyt, D. F., Wickler, S. J., and Magaña, S. A,. Reproducibility of skeletal muscle sonomicrometry in the horse. The Integrative Biology of Exercise. Portland, ME, September, 2000. The Physiologist 43: 364.*
Hoyt, D.F., Wickler, S.J., Cogger, E.A. And Goehring, M.E. A reexamination of the trot-gallop transition: insights from the study of locomotion on an incline. Society for Integrative and Comparative Biology, Chicago, IL, January 2001. American Zoologist 40:1066 (2000).*
DeLaPaz, K.L., Hoyt, D.F., Wickler, S.J. and Cogger, E.A.. Does muscle function explain preferred speed? Society for Integrative and Comparative Biology, Chicago, IL, January 2001. American Zoologist 40:993. (2000).*Q
Griffen, T.M., Garcia, S., Wickler, S.J., Hoyt, D.F. and Kram, R. Determinants of the walk-trot transition and preferred walking speeds: insights from intra-specific size comparisons in horses. Society for Integrative and Comparative Biology. Chicago, IL, January 2001. American Zoologist 40:1034. (2000).*
Lopez, C. M., Gorton, M. J., Hoyt, D. F., Cogger, E. A., and Wickler, S. J.. The energetic cost and time of contact with added limb mass in trotting horses. Society for Integrative and Comparative Biology. Anaheim, CA, January 2002. Amer. Zool. 41:1509, (2001).*!
Johnsen, D. A. J., Griffin, T. M., Wickler, S. J., Cogger, E. A., and Hoyt, D. F. Does time of contact predict the metabolic cost of walking? Society for Integrative and Comparative Biology. Anaheim, CA, January 2002. Amer. Zool. 41:1487, (2001).
Dutto, D.J., Hoyt, D.F., Wickler, S.J., and Cogger, E.A. Joint moments and powers of the horse hind limb during jumping. Experimental Biology, (2002).
Hoyt, D.F. Wickler, S. J., De La Paz, K. and Cogger, E. A. EMG activity in forelimb and hind limb muscles during level and incline trotting in the horse. American Physiological Society, Intersociety meeting, The Power of Comparative Physiology: Evolution, Integration and Application. The Physiologist 45:310. (2002).*
Dutto, D.J., Hoyt, D.F., Wickler, S.J., Cogger, E.A., and Clayton, H.M. Hind Limb Joint Kinetics of the Horse During Jumping. American Physiological Society, Intersociety meeting, The Power of Comparative Physiology: Evolution, Integration and Application. The Physiologist 45:310. (2002).
Johnsen, D. A. J., Wickler, S. J., Cogger, E. A., and Hoyt, D. F. Time of contact and muscle strain rates do not explain the energetics of the walk-trot transition in horses. American Physiological Society, Intersociety meeting, The Power of Comparative Physiology: Evolution, Integration and Application. The Physiologist 45:310. (2002).*
Catterfeld, G.E., Dutto, D.J., Wickler, S.J., and Hoyt, D.F. Deviant forces in trotting horses. Society for Integrative and Comparative Biology. Toronto, Canada, January 2003. Comparative and Integrative Biology 42 (6):1207 (2002).*?
Dutto, D.J. Hoyt, D.F., and Wickler, S.J. Ground reaction forces during level, incline and decline trotting. Society for Integrative and Comparative Biology. Toronto, Canada, January 2003. Comparative and Integrative Biology 42 (6):1223 (2002).*
Johnsen, D.A.J., Wickler, S. J., Cogger, E. A., and Hoyt, D. F. Kinematics of the walk-trot transition in horses. Society for Integrative and Comparative Biology. Toronto, Canada, January 2003. Comparative and Integrative Biology 42 (6):1251 (2002).*
Huber, S.S., Hoyt, D.F., Dutto, D.J., and Wickler, S.J. Joint dynamics of the horse forelimb during jumping: a pilot study. Society for Integrative and Comparative Biology. New Orleans, January 2004. Integrative Comparative and Biology 43 (6): 956. (2003).
Schreiber, J.S., Dutto, D.J., Hoyt, D.F., Clayton, H.M., Cogger, E.A., and Wickler, S.J. Fore limb joint kinetics of the horse during decline trotting: a pilot study. Society for Integrative and Comparative Biology. New Orleans, January 2004. Integrative Comparative and Biology 43 (6): 1029. (2003).
Hoyt, D.F., Wickler, S.J. and Dutto, D.J. The trot-gallop transition: insights from energetics, muscle function and biomechanics. Society for Integrative and Comparative Biology. New Orleans, January 2004. Integrative Comparative and Biology 43 (6): 987. (2003).
Catterfeld, G.E., Hoyt, D.F., Dutto, D.J., Wickler, S.J., and Cogger, E.A. Trotting at low vs. high speeds: different gait dynamics of fore- and hind limbs. Society for Integrative and Comparative Biology. New Orleans, January 2004. Integrative Comparative and Biology 43 (6): 986. (2003).
Dutto, D.J., Hoyt, D.F., Clayton, H.M., Cogger, E.A., and Wickler, S.J. Joint kinetics of the horse during trotting: the hind limb during stance. Society for Integrative and Comparative Biology. New Orleans, January 2004. Integrative Comparative and Biology 43 (6): 1030. (2003).
Griego Marsh, A.M., Wickler, S.J., Hoyt, D.F., Dutto, D.J., and Cogger, E.A. Hind limb muscle function during decline locomotion in the horse. Society for Integrative and Comparative Biology. New Orleans, January 2004. Integrative Comparative and Biology 43 (6): 1030. (2003).
Ferris. A.E., Dutto, D.J., Hoyt, D.F., Clayton, H.M., Cogger, E.A., and Wickler, S.J. Joint kinetics of the horse during trotting: the forelimb during stance. Society for Integrative and Comparative Biology. New Orleans, January 2004. Integrative Comparative and Biology 43 (6):  1030. (2003).
Huber, S.S., Hoyt, D.F., Dutto, D.J., Wickler S.J., Jumping mechanics of the quadruped: the equine forelimb. Society for Integrative and Comparative Biology. San Diego, January 2005. Integrative Comparative and Biology 44 (6):  573. (2004).
Ferris. A.E., Hoyt, D.F., Dutto, D.J., Cogger, E.A., and Wickler, S.J. Dynamics of the equine forelimb during landing from a jump: a pilot study. Society for Integrative and Comparative Biology. San Diego, January 2005. Integrative Comparative and Biology 44 (6):  552. (2004).
Smith, L.E., Olson, S.C., Dutto, D.J., Hoyt, D.F., and Wickler. Do forces trigger the trot-gallop transition? Society for Integrative and Comparative Biology. San Diego, January 2005. Integrative Comparative and Biology 44 (6):  748. (2004).

 

 

Manuscripts in Preparation or Review
Catterfeld, G.E., Hoyt, D.F., Dutto, D.J., Wickler, S.J. and Cogger, E.A.. Trotting at low vs. high speeds: Different gait dynamics of fore- and hind limbs. J. Exp. Biology (in revison).
Dutto, D.J., Hoyt, D.F., Clayton H.M.,. Cogger E.A, and Wickler S.J. Joint kinetics of the horse hind limb during trotting. (in preparation)
Donald F. Hoyt, Steven J. Wickler, Darren J. Dutto, Gwenn E. Catterfeld, and Devin Johnson. What Are The Relations Between Mechanics, Gait Parameters And Energetics In Terrestrial Locomotion? In Preparation – Journal of Experimental Zoolgy