ABSTRACT
The description and assessment model of tasks that imply potential biomechanical overload for the upper limbs is aimed at identifying and quantifying the following four main risk factors: repetitiveness (frequency), force, awkward postures and movements, lack of recovery periods. These factors, when taken together, characterize workrelated exposure as related to time pattern (duration) (Putz Anderson 1988; Colombini et al. 2001).
