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Objective: Determine the relationship between musculoskeletal disorders of the upper extremities and work activities carried out by workers in cardboard boxes printing lines.Methods: Correlational and transversal study. Population of study 50 workers of printing lines of cardboard boxes. We used the Kuorinka Nordic questionnaire, clinical history, maneuvers and specific signs of upper limb and RULA method.Results: The results of the Nordic questionnaire show first of all symptomatology in dolls with 58%. The maneuvers and specific clinical signs most frequently reported as positive were Jobe, Gerber, Phalen, Finkelstein and Flick. The RULA method yielded a level 4 risk in all the positions with action of urgent changes in the tasks.Conclusions: The work activities carried out in the carton printing line are related to the symptomatology and generation of musculoskeletal injuries in upper extremities in the study population.

Lesiones musculoesqueléticas de extremidades superiores en trabajadores de una fábrica de cartón