Identification de facteurs posturaux individuels et environnementaux à l'origine de troubles de l'équilibre chez l'homme au travail

Abstract : Risk factors associated with work-related falls can be typically categorized into two groups: individual and environmental. The aim of this study was to identify at which level of the postural regulation, individual and environmental factors may cause dysfunction generating imbalance among workers. Sensorial organisation favouring higher visual contribution is a risk factor of falls in an occupational setting by reducing workers' ability to adapt their posture in specific sensorial environments and by increasing latencies of their neuromuscular responses to unexpected perturbation. Long-term solvent exposure is responsible for a poor quality of static balance control and a diminished ability to efficiently adjust postural performance in sensory conflict situations. Moreover, exposed workers reported reduced vigilance without impaired quality of sleep, suggesting dysfunctions in cortical and subcortical structures controlling vigilance and postural stability.
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Alexandre Vouriot. Identification de facteurs posturaux individuels et environnementaux à l'origine de troubles de l'équilibre chez l'homme au travail. Médecine humaine et pathologie. Université Henri Poincaré - Nancy 1, 2005. Français. ⟨NNT : 2005NAN10023⟩. ⟨tel-01748085⟩

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