ISSN:
1432-1254
Keywords:
Key words Spontaneous exercise
;
Running wheel
;
Thermoregulation
;
Training
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geography
,
Physics
Notes:
Abstract Spontaneous running in a wheel has emerged as a useful method of exercise in rodents. We investigated how exercise training with a running wheel affects ambient temperatures (T a) at the onset of thermoregulatory responses in rats. Female rats were allowed to run freely in the wheel for 6 months. Sedentary control rats did not exercise during the same period. After the exercise training period, they were loosely restrained and T a values at the onset of tail skin vasodilation and cold- induced thermogenesis were determined by raising or lowering T a. Resting levels of core temperature and heat production of the exercise-trained rats were significantly higher than those of the controls. T a values at the onset of tail skin vasodilation and cold-induced thermogenesis of the exercise-trained rats were higher than those of the controls. The results suggest that, in rats, exercise training with a running wheel elevates ambient temperatures for heat loss and heat production, which may then contribute to maintaining the core temperature at a high level.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s004840050004
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