Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (28): 5173-5176.doi: 10.3969/j.issn.1673-8225.2011.28.011

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Function and site-effect of different load treadmill exercises on bones of female rats

Zhang Chong-lin1, Zheng Lu2   

  1. 1Department of Physical Education of Jinggangshan University, Ji’an 343009, Jiangxi Province, China
    2Central Laboratory of Capital Institute of Physical Education, Beijing  100088, China
  • Received:2011-04-20 Revised:2011-05-24 Online:2011-07-09 Published:2011-07-09
  • Contact: Zheng Lu, Doctor, Professor, Master’s supervisor, Central Laboratory of Capital Institute of Physical Education, Beijing 100088, China zhenglu@cipe.edu.cn
  • About author:Zhang Chong-lin☆, Studying for doctorate, Lecturer, Department of Physical Education of Jinggangshan University, Ji’an 343009, Jiangxi Province, China ccnuzcl@163.com
  • Supported by:

     the Teaching Innovation Group for Talented Man of Beijing Education Committee in 2007*

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Abstract:

BACKGROUND: The bone modeling and bone remodeling will have an adapted change when the situation of mechanics changed in vivo bone. But it is not very certain what the adapted change is when different training load exerted to the bone.
OBJECTIVE: To explore the influence and site-effect of different load treadmill exercises on female rat’s various bone mineral density (BMD).
METHODS: Female Sprague-Dawley rats were randomly divided into training group and control group. Training group received treadmill training for 17 weeks. The BMD of whole bodies, skulls, forelimbs, ribs, spines, pelvises, and hind limbs were tested at 4, 7, 9, 11, 13, 15 and 17 weeks after training.
RESULTS AND CONCLUSION: Exercise has great effects on BMD of whole bodies, skulls, forelimbs, spines, and pelvises, but does not affect the BMD of ribs. These suggest that treadmill training has different effects on bones at different parts of rats.

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