Document Type : Research Paper



The purpose of this study was to determine the effect of eight weeks’ endurance training on femur, s biomechanical properties of old male rats. Twenty months old male Wistar rats (360.5±15.4 gr) were assigned to sedentary control group (n=10) and endurance training group (n=10). Endurance training group was exercised on treadmill for 8 weeks, 5 times per week and 60 minutes per day at velocity up to 28 m/min. Forty-eight hours after last session of exercise training, animals were anesthetized and femur bones were removed. Three – point bending test was used to determine bone stiffness, fracture energy, strength and deformation. Results of this study apparently showed that 8 weeks’ endurance training had no significant effect on bone stiffness, fracture energy, strength and deformation. Its may be due to subject, s age and gender and also training protocol. Thus, it is suggested that more research should be done.


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