Abstract

AGUIRRE, Carlos Javier Flores; ZARATE, Luis Fernando  and  MORFIN, Laura Rebeca Mateos. Activity-based anorexia: Evaluation of the effects of pre-exposure to the feeding restriction regimen. Acta comport. [online]. 2014, vol.22, n.1, pp. 5-14. ISSN 0188-8145.

The study was designed to evaluate the effects of a preexposure restriction of food on loose body-weight and activity in rats. Two groups of rats were deprived of food in a feeding schedule 1hr/day, one group was maintained at 80% of its body weight (Group 80%), whereas for the other the body-weight was recovered at 100% (Group 80-100%). Finally, a third group did not have this preexposure to the food restriction (Group 100%). During the experimental phase all rats were exposed to the experimental chambers with access to food during 1 h a day and 23 h with free access to an activity wheel. Groups with preexposure to food regime (Groups 80% and 80-100%) showed higher activity levels and less reduction in their body-weight. The results are explained according to the adaptation hypothesis; however, alternative explanations cannot be discarded.

Keywords : Activity-based Anorexia; food restriction; pre-exposure; body weight; rats.

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