Sex differences in the relationship between activity and weight loss in the rat

被引:43
作者
Boakes, RA [1 ]
Mills, KJ [1 ]
Single, JP [1 ]
机构
[1] Univ Sydney, Dept Psychol, Sydney, NSW 2006, Australia
关键词
D O I
10.1037/0735-7044.113.5.1080
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
Access to a running wheel combined with restricted feeding produced body weight loss at an equivalent rate in male and female litter-mate rats (Experiment 1). Thus, despite weighing less and running more, females were not more vulnerable to this procedure. When factors influencing weight loss were varied, no sex difference was found in adaptation to a new feeding schedule or in the effect of single versus group housing (Experiment 2). The apparent critical difference was that body weight loss increased running in males but not in females (Experiment 3). In all rats, rapid recovery of body weight occurred when food access was no longer restricted (Experiment 1), suggesting that "activity-based anorexia" is a misnomer for weight loss by rats in a running wheel.
引用
收藏
页码:1080 / 1089
页数:10
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