Contribution to our knowledge of the physiology and metabolism of endurance horses
Brief content of the article
The authors discuss the functional and metabolic processes of the endurance horse. Research on the energetic and physiological aspects of prolonged effort is reviewed, as regards the performance structure, described by Neumann, for human physiology. Experimental data from previous surveys executed by the authors on endurance horses, competing at different levels, are also presented and discussed. The authors conclude that the event distance has a significant influence on amino acid mobilization and their use as energy sources. In human athletes, the disappearance of some amino acids from blood circulation is linked to the onset of central fatigue. The effect could be similar in endurance horses; therefore, the correct intake of amino acids, and a proper feeding strategy, could improve performance. The principle and use of branched chain amino acids is also discussed. The authors also provide data on dehydration and oxidative stress associated with endurance work.
Keywords: Endurance; exercise physiology; BCAA; water; fat.
Bergero, D. Assenza, A. and Caola, G. 2005. Contribution to our knowledge of the physiology and metabolism of endurance horses. Livestock production science 92: 167 –176.