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Les outils simples d’évaluation du risque d’apparition des troubles musculo squelettiques (TMS) : quelle intégration de la marge de manœuvre situationnelle (MMS) dans le cadre du repérage des situations à risques ? : étude de cas dans une industrie d’assemblage de moteurs diesel à usage non routier

Abstract : The identification of risk situations is essential in the process of MSD prevention: this identification called "MSD risk assessment" relies on the "simple" risk assessment tools to target critical situations. This thesis focuses on the difficulties of using simple tools in the initial phase of the MSD prevention process. This study, therefore, investigates the contribution of the field of ergonomics of activity and in particular Situational Operational Leeway (SOL) for MSD risk assessment tools. We identified and listed the SOL indicators based on the human-centered model of activity (Vézina, 2001), and then we analyzed the presence of these indicators in the simple tools with a self-developed checklist. Nine simple tools were used to assess a sample of 10 work stations in the manufacturing industry in France. Moreover, a list of indicators derived from three components of the human centered model of activity was proposed to explore the sufficiency of SOL in those work stations.The findings showed that the simple tools do not consider SOL indicators during an assessment and the various assessments with ten simple tools produced different results on the same work station. In general, the SOL indicators estimated the level of MSD risk lower than the evaluation of the simple tools. The SOL proposes to consider the resources available to the operator to interact with work situations and its challenges.Therefore, the difference between the assessments by the simple tools and the SOL indicators might be related to the focus of simple tools (oriented on constraints).This study showed that the SOL indicators could provide complementary information to that obtained by simple tools. These results propose a risk assessment approach that uses SOL sufficiency to target critical situations.
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Maxime Norval. Les outils simples d’évaluation du risque d’apparition des troubles musculo squelettiques (TMS) : quelle intégration de la marge de manœuvre situationnelle (MMS) dans le cadre du repérage des situations à risques ? : étude de cas dans une industrie d’assemblage de moteurs diesel à usage non routier. Médecine humaine et pathologie. Université d'Angers, 2019. Français. ⟨NNT : 2019ANGE0032⟩. ⟨tel-02502361⟩

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