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G Ital Med Lav Ergon. 2012 Jul-Sep;34(3 Suppl):68-71.

[Modelling metallic bars in an orthopaedic laboratory: postural and biomechanical analysis].

[Article in Italian]

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  • 1INAIL - Settore Ricerca, Dipartimento di Medicina del Lavoro - Laboratorio di Fisiologia, Ergonomia, Postura e Movimento - Monte Porzio Catone, Roma, Italy.


Aim of this work is to assess, with an objective technique (i.e. surface electromyography), the upper limb biomechanical load in workers specialized in manufacturing of orthopedic prostheses. We considered two different working configurations (workstation height at 105 and 110 cm) and three different materials to be modeled (aluminum, steel and titanium). Our results showed significant differences between aluminum/steel and titanium bars. As regards the working configurations, we found differences in the muscle activation patterns between the two heights, with an increased exertion of the shoulder muscles at 110 cm with respect to 105.

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