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Titolo:
Effect of load on preferred speed and cost of transport
Autore:
Wickler, SJ; Hoyt, DF; Cogger, EA; Hall, KM;
Indirizzi:
Calif State Polytech Univ Pomona, Equine Res Ctr, Pomona, CA 91768 USA Calif State Polytech Univ Pomona Pomona CA USA 91768 Pomona, CA 91768 USA Calif State Polytech Univ Pomona, Dept Vet & Anim Sci, Pomona, CA 91768 USA Calif State Polytech Univ Pomona Pomona CA USA 91768 Pomona, CA 91768 USA Calif State Polytech Univ Pomona, Dept Biol Sci, Pomona, CA 91768 USA Calif State Polytech Univ Pomona Pomona CA USA 91768 Pomona, CA 91768 USA
Titolo Testata:
JOURNAL OF APPLIED PHYSIOLOGY
fascicolo: 4, volume: 90, anno: 2001,
pagine: 1548 - 1551
SICI:
8750-7587(200104)90:4<1548:EOLOPS>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENERGETICS; LOCOMOTION; ANIMALS; HORSES; SIZE; GAIT;
Keywords:
metabolism; oxygen consumption; equine; horse;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Wickler, SJ Calif State Polytech Univ Pomona, Equine Res Ctr, Pomona, CA 91768 USA Calif State Polytech Univ Pomona Pomona CA USA 91768 1768 USA
Citazione:
S.J. Wickler et al., "Effect of load on preferred speed and cost of transport", J APP PHYSL, 90(4), 2001, pp. 1548-1551

Abstract

Horses have a tendency to utilize a relatively narrow set of speeds near the middle of a much broader range they are capable of using within a particular gait, i.e., a preferred speed. Possible explanations for this behaviorinclude minimizing musculoskeletal stresses and maximizing metabolic economy. If metabolic economy (cost of transport, C-T) and preferred speeds are linked, then shifts in C-T should produce shifts in preferred speed. To test this hypothesis, preferred speed was measured in trotting horses (n = 7) unloaded on the level and loaded with 19% of their body weight on the level. The preferred speed on the level was 3.33 +/- 0.09 (SE) m/s, and this decreased to 3.13 +/- 0.11 m/s when loaded. In both conditions ino load and load), the rate of O-2 consumption (n = 3) was a curvilinear function of speed that produced a minimum C-T (i.e., speed at which trotting is most economical). When unloaded, the speed at which C-T was minimum was very near the preferred speed. With a load, C-T decreased and the minimum was also near the preferred speed of horses while carrying a load.

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Documento generato il 19/01/20 alle ore 00:23:41