The temperature response of acclimatized and unacclimatized rats to exercise in the cold.

摘要: Colonic and tail-skin temperatures of cold-acclimatized (4 °C for 4 weeks) unacclimatized 1 day) rats were measured while they being exercised on a treadmill (4.6 m/minute) in the cold °C). In animals colonic temperature increased to same level as when previously at 24 °C, but changes indicated only small vasodilatation. significantly higher than before peripheral vasodilatation appeared, this was maintained exercise continued. addition, showed during rest greater controls. Rats treated 6 days room (24 °C) with mixture thyroxine (25 μg/100 g body weight per cortisone (1 mg rat after ...