Effect of three different warm-up regimens on heat balance and oxygen consumption of thoroughbred horses
| Autor: | D. J. Adamson, C. W. Travers, A. J. Guthrie, J. P. Nurton, H. J. Mostert, R. J. Lund |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
medicine.medical_specialty
Physiology Chemistry Heat balance Heat losses chemistry.chemical_element Thermoregulation Oxygen Body Temperature Surgery SWEAT Oxygen Consumption Animal science Physical Conditioning Animal Physiology (medical) medicine Animals Horses O2 consumption Body Temperature Regulation |
| Zdroj: | Journal of Applied Physiology. 80:2190-2197 |
| ISSN: | 1522-1601 8750-7587 |
| Popis: | Horses were exercised at 105% of their maximal O2 uptake until fatigued after three different warm-up regimens (no warm-up, a light warm-up, and a warm-up until the central venous temperature was > 39.5 degrees C) to assess the effect of the warm-up on the various avenues of heat loss. Approximately 12.79, 15.10, and 18.40 MJ of heat were generated in response to the warm-up and exercise after the three different warm-up regimens, respectively. Of the heat generated, 17.5, 17.2, and 17.4% remained as stored heat after 20 min of active recovery. Heat loss from the respiratory system was 63.6, 33.7, and 40.3% of the heat produced during and after the three warm-up intensities, respectively. The balance of the heat loss was assumed to be via the evaporation of sweat. On this basis, the heat loss by sweating was 14.9, 49.1, and 42.3% of the heat produced during and after the three warm-up intensities, which represented evaporation of 0.8, 3.1, and 3.0 liters of sweat, respectively. O2 consumption during exercise and heart rates 20 min postexercise, after two of the warm-up regimens, was significantly lower than that after no prior warm-up. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|