Cardiovascular effects of intermittent or continuous treadmill conditioning in horses |
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| Authors: | A.V. Rodiek PhD L.M. Lawrence PhD M.A. Russell PhD |
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| Affiliation: | 1. Clinical Department of Companion Animals and Equids, Faculty of Veterinary Medicine, Equine Teaching Hospital, University of Liège, Liège, Belgium;2. GIGA (Groupe Interdisciplinaire de Génoprotéomique Appliquée), Transgenics platform, University of Liège, Liège, Belgium;3. Biostatistics, Bioinformatics, Economics and Animal Selection, Department of Animal Production, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium;4. Equine Sports Medicine Practice (ESMP), Waterloo, Belgium;1. Department of Animal Science, Faculty of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran;2. Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran;3. Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran;1. Department of Physical Education, State University of Maringá, Brazil, Av. Colombo, 5790, 87.020-900 Maringá-PR, Brazil;2. SportMed Cardiologic Clinic, Maringá, Av. Humaitá, 638, 87014-200 Maringá-PR, Brazil;1. Department of Mechanical Engineering, The University of Melbourne, Parkville, Melbourne, Australia;2. Department of Veterinary Biosciences The University of Melbourne, Parkville, Melbourne, Australia |
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| Abstract: | Nine mature Quarter Horse mares were trained for ten weeks by continuous (n=4) or intermittent (n=5) treadmill work. Both groups of horses trotted at 3.3m/sec. The continuous work was performed at a 3% incline while the intermittent work was done at a 9% incline. Heart rate, cardiac output and blood lactate concentration were measured during a standard exercise test that included work on both treadmill grades before and after five and ten weeks of training. The two conditioning programs did not produce differences in the measured parameters of the two groups of horses. However, there was an overall conditioning effect observed in both groups of horses throughout the ten weeks of treadmill conditioning. Heart rate decreased (P<.05) during exercise on both treadmill grades after ten weeks of training. Lactate concentration decreased (P<.05) during the 9 percent grade trot after five weeks of training. Only slight further decreases occurred between week five and week ten of conditioning. Cardiac output increased (P<.05) between rest and exercise on both grades but there was no conditioning effect. |
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