[Biomechanical risk for the upper limbs: experience at a factory of feeding electric cables]

Cumulative trauma disorders are found more and more frequently in working environments. Our examination concerns a factory of feeding electric cables, whose workers were subjected to a sanitary checking in 2001, 2002, 2003. The valuation of the risk due to a biomechanical overload of the upper limbs, carried out according to the OCRA method, pointed out, with reference to the specific task of pressing, a middle-high grade of exposure, while the clinical-instrumental results showed symptoms and objective signs of suffering on the median nerve of the wrist with regard to a significant percentage of workers. The following interventions on the production cycle and on the exposure times obtained a reduction of the risk with a subsequent decrease of the noticed troubles.