1Professor, Department of Physical Education, School of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
2Assistant Professor, Department of Physical Education, Kashmar Higher Education Institute, Kashmar, Iran
3Teacher of Physical Education, Khalil Abad, Iran
Background & Aims: The purpose of the present research was to compare the bone mineral density (BMD) of lumbar spine between athletic and non-athletic premenopausal women. Methods: Fifteen female athletes (runner) with the mean age of 33.80 ± 4.81 years, mean height of 164.13 ± 5.31 cm, mean weight of 57.33 ± 4.22 kg, and mean body mass index (BMI) of 21.41 ± 2.21 kg/m2 and 15 female non-athletes with yhe mean age of 36.73 ± 5.02 years, mean height of 161.20 ± 4.17 cm, mean weight of 68.00 ± 10.67 kg, and mean BMI of 26.78 ± 4.34 kg/m2 at the premenopausal age (30-45 years) were participated. The BMD of lumbar spines were measured by dual-energy X-ray absorptiometry (DEXA). The collected data were analyzed through t-test statistical methods. Results: Based on T-score and Z-score criteria, all of athletes had normal bone tissue while, 13.3 percent of non-athletes were osteopenic. Moreover, the BMD of lumbar in athletes was significantly more than nonathletes. Furthermore, in the lumbar spine region, significant differences observed between the T-score and Z-score values for both athletes and non athletes. Conclusion: It seems likely that running can increase the BMD of lumbar in premenopausal women; therefore, it can play an important role in preventing osteoporosis as an effective non-medicine method.