中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (46): 8036-8042.doi: 10.3969/j.issn.2095-4344.2013.46.010

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

跑台训练建立过度训练大鼠模型

张  彩,杨华元   

  1. 上海中医药大学体育部运动医学教研室,上海市  201203
  • 出版日期:2013-11-12 发布日期:2013-11-30
  • 通讯作者: 杨华元,教授,上海中医药大学体育部运动医学教研室,上海市 201203 yhyabcd@sina.com
  • 作者简介:张彩☆,女,1979年生, 2012年上海中医药大学毕业,博士,讲师,主要从事针灸、运动医学方面的研究。 13795464728@163.com
  • 基金资助:

    上海市体育局科技腾飞计划项目(09Tf015)*

Establishment of an overtraining rat model on the treadmill

Zhang Cai, Yang Hua-yuan   

  1. Office of Sports Medicine, Department of Physical Education, Shanghai University of Traditional Chinese Medicine, Shanghai  201203, China
  • Online:2013-11-12 Published:2013-11-30
  • Contact: Yang Hua-yuan, Professor, Office of Sports Medicine, Department of Physical Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China yhyabcd@sina.com
  • About author:Zhang Cai☆, Lecturer, Studying for doctorate, Office of Sports Medicine, Department of Physical Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China 13795464728@163.com
  • Supported by:

     the Science and Technology Liftoff Project of Bureau of Physical Education of Shanghai City, No. 09Tf015*

摘要:

背景:过度训练是运动负荷与机体机能不相适应,以至疲劳连续累积而引起的一系列功能紊乱或病理状态。目前建立过度训练大鼠模型的常用训练方法有跑台、游泳、爬杆等方式,但国际上比较认可跑台法。
目的:通过动态监测运动大鼠的生化指标,同时观察其行为学改变,确立建立过度训练大鼠模型的建模标准,实现过度训练大鼠模型建模客观化。
方法:16只SD大鼠随机均分为模型组与空白对照组。模型组按训练计划进行运动训练,大鼠适应性喂养后开始训练,每周训练6 d,休息1 d,采用递增强度跑台运动,从训练第1周起,逐渐递增速度、坡度和跑步时间;而空白对照组常规饲养,不进行训练。
结果与结论:运动5周后大鼠出现过度训练行为学改变。训练过程中,血清肌酸激酶持续增加,5周后高于基础水平(P < 0.01);血清尿素氮持续增加,3周后高于基础水平(P < 0.05);而大鼠血红蛋白、血清睾酮呈现先升高后下降的趋势,8周后显著低于基础水平(P < 0.05)。大鼠行为学上出现过度训练状态,同时血红蛋白、血清睾酮显著低于基础水平,血清肌酸激酶、血清尿素氮显著高于基础水平,提示运动机体处于过度训练状态。实验确立了过度训练大鼠的建模标准。按照实验训练方案,跑台速度为30 m/min、每次训练时间为 110 min、坡度为15°时,训练持续至第8周可以建立过度训练大鼠模型。

关键词: 组织构建, 组织构建实验造模, 过度训练, 大鼠模型, 行为学改变, 运动生化指标, 血红蛋白, 血清肌酸激酶, 血清尿素氮, 血清睾酮, 省级基金

Abstract:

BACKGROUND: Overtraining is a series of functional disorder or pathological state induced by continuous fatigue accumulation because exercise load and body function are incommensurate to each other. At present, commonly used methods for establishing rat models of overtraining included treadmill, swimming and climbing rod, but treadmill is comparatively accepted in the world.
OBJECTIVE: To establish the standard of overtraining rat model and to implement objective of model establishment by dynamically monitoring biochemical indexes and observing behavioral changes.
METHODS: A total of 16 Sprague-Dawley rats were randomly assigned to model and blank control groups. The model group received movement training according to the plan. After adaptable feeding, training was performed, 6 days every week, with a rest of 1 day. Increasing intensity on treadmill was used. From the first week of training, the speed, gradient and running time were gradually increased. However, the blank control group was conventionally fed, without any training.
RESULTS AND CONCLUSION: Behavior changes of the training rats were arisen after five weeks. Serum creatine kinase levels increased continuously in training process, and higher than basic levels at 5 weeks  (P < 0.01). Serum urea nitrogen levels persistently increased, and higher than basic levels at 3 weeks (P<0.05).   
Hemoglobin and serum testosterone levels increased and then decreased, and significantly lower than basic levels at 8 weeks (P < 0.05). Behaviorally, overtraining appeared. Simultaneously, hemoglobin and serum testosterone levels were significantly lower than basic levels. Serum creatine kinase and serum urea nitrogen levels were significantly higher than basic levels. These results indicated that the body was in overtraining state. The standard of overtraining rat model was established in this study. The overtraining rat model was established according to the training program when the training was lasted for 8 weeks, the training speed was 30 m/min; every training time was 110 minutes, and the gradient was 15°.

Key words: physical education and training, rats, models, animal, behavioral disciplines and activities, hemoglobins, blood urea nitrogen

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