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Temperature changes during strenuous exercise in different body compartments of the horse


Weishaupt, Michael A; Stämpfli, H; Billeter, Rudolf; Straub, R (1996). Temperature changes during strenuous exercise in different body compartments of the horse. Pferdeheilkunde, 12(4):450-454.

Abstract

In order to evaluate metabolic heat generation and heat dissipation of strenuously exercising horses, thermal response in various body compartments was simultaneously and continuously monitored. Two horses were subjected to a long-term incremental exercise protocol with progressive increase of treadmill speed, slope and draught load. The temperatures were determined in the following structures and cavities using implanted thermocouple probes: middle gluteal, semitendinosus and masseter muscles, right cardiac ventricle, jugular vein, abdomen, rectum and subcutaneous tissue. The kinetics of temperature increases were similar for locomotor muscles, right ventricle (body core), abdomen and subcutaneous tissue. At peak exercise the highest temperatures were measured in locomotor muscle (43.3 degrees C). The blood temperature in the jugular vein was approximate to 1 degrees C below body core temperature at rest and approximate to 3 degrees C below at peak exercise. During and after exercise the rectal temperature never accurately assessed core and compartment temperatures. Maximal rectal temperatures peaked approximate to 1 degrees C below body core temperature with a lag time of 10-15 minutes.

In order to evaluate metabolic heat generation and heat dissipation of strenuously exercising horses, thermal response in various body compartments was simultaneously and continuously monitored. Two horses were subjected to a long-term incremental exercise protocol with progressive increase of treadmill speed, slope and draught load. The temperatures were determined in the following structures and cavities using implanted thermocouple probes: middle gluteal, semitendinosus and masseter muscles, right cardiac ventricle, jugular vein, abdomen, rectum and subcutaneous tissue. The kinetics of temperature increases were similar for locomotor muscles, right ventricle (body core), abdomen and subcutaneous tissue. At peak exercise the highest temperatures were measured in locomotor muscle (43.3 degrees C). The blood temperature in the jugular vein was approximate to 1 degrees C below body core temperature at rest and approximate to 3 degrees C below at peak exercise. During and after exercise the rectal temperature never accurately assessed core and compartment temperatures. Maximal rectal temperatures peaked approximate to 1 degrees C below body core temperature with a lag time of 10-15 minutes.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Veterinary Clinic > Equine Department
05 Vetsuisse Faculty > Veterinary Clinic > Department of Small Animals
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Language:English
Date:1996
Deposited On:22 Jun 2009 11:52
Last Modified:05 May 2016 07:21
Publisher:Hippiatrika Verlag GmbH
ISSN:0177-7726
Additional Information:15th Meeting on Equine Welfare and Sports Medicine Bonn, Germany, JUN 24-28, 1996 Association of Equine Sports Medicine
Related URLs:http://www.pferdeheilkunde.de/ (Publisher)
Permanent URL: http://doi.org/10.5167/uzh-19368

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