The ergonomic analysis and back injuries in flexible production system
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Back injuries identification and diagnoses in the transition of the Taylor model to the flexible model of production organization, demands a parallel intervention of prevention actors at work. This study uses simultaneously three intervention models (structured action analysis, muscle skeletal symptoms questionnaires and muscle skeletal assessment) for work activities a packaging plant. in this study seventy and two (72) operative workers participated (28 workers with muscle skeletal evaluation). In an intervention period of 10 months, the physical, cognitive, organizational components and ductive process dynamics were evaluated from the muscle skeletal demands issues. The differences established between objective exposure at risk, back injury risk perception, appreciation and a vertebral spine evaluation, in prior and post intervention, determines the structure for a muscle skeletal risk management system. This study explains that back injury symptoms can be more efficiently reduced among operative workers combining measures registered and the djustment between dynamics, the changes at work and efficient gestures development. Relevance: the results of this study can be used to prevent back injuries in workers of flexible production processes.