 The study consists of evaluating the efficacy of an Educational Program for prevention of occupational musculoskeletal problems in workers. It is a randomized clinical trial with parallel groups and blinded evaluator, with a control group not submitted to the educational program, but that received a program for general orientation in health. The primary outcome was the change of the quality of life measured by means of Medical Outcomes Study 36-Term Short Health Survey SF-36, that it is a generic instrument of evaluation of the quality of life, translated and validated in Portuguese of Brazil. 