High ambient temperature reduces rate of body-weight loss produced by wheel running
High ambient temperature reduces rate of body-weight loss produced by wheel running
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DOI：
10.1080/17470210500417688
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发表时间：
2006-01-01
影响因子：
1.7
通讯作者：
Boakes, Robert A.
中科院分区：
文献类型：
--
作者：
Gutierrez, Emilio;Baysari, Melissa T.;Boakes, Robert A.
本研究探讨了环境温度（AT）对活动和体重减轻之间关系的影响。与21摄氏度的中性AT相比，在标准的基于活动的厌食症（阿坝）程序中，27-29摄氏度的高AT在给予1.5小时食物访问和22.5小时转轮访问的大鼠中产生较慢的体重减轻速率（实验1和2）。在实验1中，高AT不影响食物摄入或车轮运行，但在实验2中确实减少了运行。当保持车轮接近时（实验2），从空档切换到高AT对重量损失只有短暂的影响，但当阻止车轮接近时（实验3），重量损失较少。在中性AT下，每天仅给予大鼠3小时的轮访问也产生了显著的体重减轻，但如果在每天的剩余时间内，它们保持在高AT下，则体重减轻较少（实验4）。
This study examined the effect of ambient temperature (AT) on the relationship between activity and weight loss. Compared with a neutral AT of 21 degrees C, high ATs of 27-29 degrees C produced a slower rate of weight loss in rats given 1.5-hr food access and 22.5-hr running-wheel access in a standard activity-based anorexia (ABA) procedure (Experiments 1 and 2). The high AT did not affect food intake or wheel running in Experiment 1, but did reduce running in Experiment 2. Switching from neutral to high AT had only a transient effect on weight loss when wheel access was maintained (Experiment 2) but resulted in less weight loss when wheel access was prevented (Experiment 3). Giving rats only 3 hr of wheel access each day at a neutral AT also produced substantial weight loss, but less if for the rest of each day they were maintained at a high AT (Experiment 4).