Abstract

With increasing age, bone tissue is destroyed and menopause is associated with low bone mass. The purpose of current study is to examine impact of ten weeks interval training on femoral strength and estrogen hormone in ovariectomy Sprague Dawley rats. Material and Methods: 40 Sprague dawley female rats were randomly selected from Medical Sciences Laboratory, they were anesthetized and their ovaries were removed. After 12 weeks they were divided into 2 equal groups: control group (C), and exercise group (E). Exercise program, which was executed on flatted treadmill. After the rest period and the beginning of menopause 10 rats in each group was selected to perform pre-test. And end of 10 weeks exercises training all rats from each group was bleeding for determination of estrogen hormone and then killed for assigning of strength of femur. Results: in this research it was observed that there is significant difference in strength of femur and estrogen hormone (P<0.05). Conclusion: The findings of this research showed exercise would significantly increase the production of estrogen, thereby increases the strength of the femur. On the other hand, due to the decrease in the natural production of estrogen and complications of osteoporosis in postmenopausal to reduce injury and prevent fractures.