The effect of 16 weeks endurance training on the tibia bone in adult male Wistar rats: Biomechanical and geometrical parameters

Oral Presentation
Paper ID : 1060-12THCONG
Oral / Poster Presentation File: 12th Cong Presentation.wmv 
1Assistant Professor of Farhangian University, Tehran
2Professor, Faculty of Physical Education and Sport Sciences, Kharazmi University, Tehran.
3Department of Physiotherapy, Faculty of Medicine, Tarbiat Modarres University, Tehran.
4Professor, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran.
5Assistant Professor of Physical Education and Sport Sciences Research Institute
Bone fracture as a result of diseases (osteoporosis, osteomalacia) or other causes, only in the country within a year cause 20% of deaths and 50% of people have serious disabilities or disorders. Given the importance of these fractures in increased mortality and reduced quality of life and to reduce the unwanted side effects of some medical interventions, evaluate the effectiveness of different treatment methods to reduce the risk of fracture is of great significance. Since the best type of exercise to stimulate and increase bone density and strength, weight-bearing exercise, The aim of this study was to evaluate the effect of 16 weeks endurance training on biomechanical and geometricaly parameters of the tibia bone in adult male Wistar rats.
16 rats with an age range of 50 to 60 days and an average weight of 160 ± 10 gr, were randomly divided into two groups: 16 weeks of endurance training (running five days a week, according to the training protocol) and control group (no activity). A day after the end of the training, the rats were sacrificed, the right tibia bone was harvested, then By mechanical three-point bending test, the biomechanical parameters (stiffness, maximum mechanical strength and maximum energy to the point of maximum strength) and by digital caliper, geometric parameters (length and width) were measured. One way-ANOVA was used to compare biomechanical and geometrical parameters between groups (P≥0/05).
The results demonstrated a significant increase in biomechanical parameters (stiffness) and geometrica parameters (length) after 16 weeks endurance training.
16 weeks of endurance training (used in this study) can be used to prevent fractures and osteoporosis and osteomalacia, with improved biomechanical and geometry parameters used in the tibia bone.