en Medical Physics Medical Physics تحقيق بديع Original Research <div style="text-align: justify;">Background: The purpose of this study was to evaluate the impact of moderate exercise training as an effective strategy to attenuate the harmful effects of electromagnetic radiation emitted from a cell phone on Wistar Rat&#39;s semen quality. Materials and Methods: Twenty four male Wistar rats (10 weeks old) were randomly assigned to groups: control group, exercise group, radiation group, and radiation plus exercise group. The animals in radiation and radiation plus exercise groups were exposed to radiofrequency electromagnetic radiation of a cell phone 3 hours/day for 28 days. The animals in exercise and radiation plus exercise groups performed moderate exercise training six days a week for 28 days. At the same time, the control and exercise groups exposed to a mobile phone&nbsp;in switch off. Basic parameters of testes weight, sperm count, motility, progressivity, morphology, and viability assessed. Results: Exposure to the cell phone for 28 days significantly reduced sperm count, progressivity, and normal morphology. Exercise alone caused a significant increase in sperm progressivity only. Radiation plus exercise caused a significant increase in sperm progressivity and morphology compared with the radiation group.</div> Conclusion: Moderate exercise training may attenuate the harmful effects of exposure to cell phone radiation and enhance sperm quality and the fertility status of men. Mobile, Physical activity, Fertility, Sperm, Radiofrequency electromagnetic radiation. 317 323 http://ijrr.com/browse.php?a_code=A-10-2055-116&slc_lang=en&sid=1 H.A. Akbari 7900319475328460020090 7900319475328460020090 No Department of Exercise Physiology, Faculty of Physical Education and Sports Sciences, University of Tehran, Tehran, Iran A.A. Gaeini aagaeini@ut.ac.ir 7900319475328460020091 7900319475328460020091 Yes Department of Exercise Physiology, Faculty of Physical Education and Sports Sciences, University of Tehran, Tehran, Iran