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Background: Work-related musculoskeletal disorders are a common health related problem throughout the world and a major cause of disability in the workplace, especially in the development countries. The aim of this study was to evaluate the effect of 8-week corrective exercise on musculoskeletal disorders (MSD) among workers of Loabiran industry. Methods: Ninety-one workers of Loabiran industry participated in this study. The Nordic Musculoskeletal Questionnaire was used to study the prevalence of MSD. After primarily evaluations from 91 workers, thirty-one workers identified as having MSD involved in corrective exercise program for 8 weeks (3 sessions per week, each session 45 to 90 minutes). Findings: Regarding MSD, a significant difference between different sites of body was found (P < 0.05); low back (26.3 %), shoulder (18.9 %) and knee (17 %) were the most prevalent sites. The severity and rate of disorders decreased significantly following 8-weeks training in low back, shoulder, knee, neck and hand/wrist areas (P < 0.05). Conclusion: It can be concluded that prevalence of MSD among workers of Loabiran industry was relatively high and corrective exercise program was effective to decrease it. So, corrective exercise for reducing risk level would be recommended. Keywords: Musculoskeletal disorders, Ergonomy, Corrective exercise.