实验动物与比较医学 ›› 2015, Vol. 35 ›› Issue (3): 202-206.DOI: 10.3969/j.issn.1674-5817.2015.03.005

• 论著 • 上一篇    下一篇

运动对肥胖易感和肥胖抵抗大鼠摄食量和身体成分的影响

李静静, 张云丽, 蔡明, 辛磊, 娄淑杰   

  1. 上海体育学院运动科学学院, 上海 200438
  • 收稿日期:2015-01-21 出版日期:2015-06-25 发布日期:2015-06-25
  • 作者简介:李静静(1988-), 女, 在读硕士生, 研究方向: 运动与脑健康, E-mail: 963161527@qq.com
  • 基金资助:
    上海市人类运动能力开发与保障重点实验室(上海体育学院)(No.11DZ2261100); 研究生创新培育计划(No.yjscx2014030)

Effects of Exercise on Food Intake and Body Composition in Obesity-prone and Obesity-resistant Rats

LI Jing-jing, ZHANG Yun-li, CAI Ming, XIN Lei, LOU Shu-jie   

  1. School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
  • Received:2015-01-21 Online:2015-06-25 Published:2015-06-25

摘要: 目的 观察运动对肥胖易感和肥胖抵抗大鼠摄食量和身体成分的影响,以期为运动健身和运动减肥提供实验依据。方法 雄性SD大鼠70只,高脂饲料和普通饲料喂养8周后,根据体质量筛选出肥胖易感和肥胖抵抗大鼠; 并分为肥胖易感安静组(OP)、肥胖易感运动组(OPE)、肥胖抵抗安静组(OR)和肥胖抵抗运动组(ORE)四组,继续给予高脂饲料,运动组适应性运动一周后,进行8周跑台运动,采用Prodigy双能X线骨密度仪测量大鼠身体成分。结果 (1)与安静组相比,运动组大鼠摄食量显著下降; (2)与安静组相比,运动组大鼠体质量、脂肪组织量均显著下降,OPE组大鼠肌肉组织量显著上升,而ORE组大鼠肌肉组织量未发生显著性变化。结论 同一强度运动可对肥胖易感和肥胖抵抗大鼠的肌肉组织量可产生不同的影响,提示运动健身时要充分考虑到运动强度和营养补充。

关键词: 运动, 肥胖易感, 肥胖抵抗, 摄食量, 身体成分

Abstract: Objective To observe the effects of exercise on food intake and body composition in obesity-prone and obesity-resistant rats, in order to provide experimental evidence for fitness and exercise for weight loss. Methods Seventy male SD rats were fed with high-fat diet or normal diet, after 8 weeks, obesity-prone and obesity-resistant rats were screened out based on body weight; then they were divided into four groups: obesity-prone quiet group (OP), obesity-prone exercise group (OPE), obesity-resistant quiet group (OR) and obesity-resistant exercise group (ORE), and all animals were continued to be given high-fat diet, the exercise groups were arranged to adaptive exercise for one week, then were performed eight weeks treadmill exercise, and the body composition of rats were measured using the Prodigy dual-energy X-ray absorptiometry. Results (1) Compared with the quiet groups, food intake in the exercise groups were decreased significantly; (2) Compared with the quiet groups, body weight and fat tissue in the exercise groups were significantly decreased, the amount of muscle tissue of rats in OPE group were significantly increased, and the amount of muscle tissue of rats in ORE group were not changed significantly. Conclusion The same intensity exercise can produce different effects on the amount of muscle tissue in obesity-prone and obesity-resistant rats, it is necessary to fully take the intensity and nutritional supplements into account when exercise used for fitness.

Key words: Exercise, Obesity-prone, Obesity-resistant, Food intake, Body composition

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