en آسیب شناسی ورزشی و حرکات اصلاحی Sport injury and corrective exercises پژوهشي Research <p style="text-align: justify;"><strong>Purpose: </strong>The present study aimed to investigate the effect of exercise on the anxiety of&nbsp;adolescents with intellectual disability.<br> <strong>Methods:</strong> Study method was quasi-experimental with pretest-posttest design and a control&nbsp;group. The study population included all secondary students with intellectual disability in Shiraz&nbsp;City in the academic year 2012-2013. The sample size consisted of 30 secondary students with&nbsp;intellectual disability selected by available sampling method. They were randomly divided into&nbsp;experimental and control groups (15 students in each group). Both groups took the pretest. The&nbsp;experimental group received exercise training in 8 sessions while control group did not. Aftercompletion of intervention period, the posttest was administered for both groups. The Zung selfrating&nbsp;anxiety scale was administered to assess the anxiety.<br> <strong>Results:</strong> The data analyses by analysis of covariance ANCOVA and multivariate analysis of&nbsp;covariance (MANCOVA) showed that the mean scores of anxiety and its subscales (emotional&nbsp;and physical signs of anxiety) were significantly lower in experimental group (P<0.01).<br> <strong>Conclusion:</strong> Findings indicated that exercise intervention leads to decrease in the anxiety.&nbsp;Therefore, we suggest designing and implementing exercise programs to decrease the anxiety of&nbsp;students with intellectual disability.</p> Exercise, Anxiety, Adolescents, Intellectual disability 25 32 http://ptj.uswr.ac.ir/browse.php?a_code=A-10-242-1&slc_lang=en&sid=1 Masoomeh Salehpoor m.salehpour66@yahoo.com No Exercise, Anxiety, Adolescents, Intellectual disability Mohsen Salesi Msalesi@shirazu.ac.ir No Exercise, Anxiety, Adolescents, Intellectual disability Ghorban Hemati Alamdarloo ghemati@shirazu.ac.ir Yes Department of Special Education, School of Education & Psychology, Shiraz University, Shiraz, Iran.