Abstract
Workload related to material handling is one of main biomechanical risks that cause work related musculoskeletal disorderat work. The aim of this study wasto assess the risk factors for biomechanical loading present at carried out tasks by port stevedores. First, we made a diagnosis using the risk assessment matrix (RAM) then; we evaluated the biomechanical risk using the NIOSH lifting equation (Compound method). The results were a high level of unacceptable risk at the beginning and at the end of the task (scored 4.22 and 8.50 respectively). Subsequently, we made a correlation analysis between this scored and the musculoskeletal discomfort perceived by stevedores. From this analysis, it is evident that there is a direct relation between lifting vertical distance, trunk torsion, and the increase of musculoskeletal lesions suffered by the dockers. Finally, we proposed some methods to improve the activities of filling and emptying containers and minimize the manual material handling.
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