Predictive model of the human muscle fatigue: application to repetitive push-pull tasks with light external load
by Sophie Sakka; Damien Chablat; Ruina Ma; Fouad Bennis
International Journal of Human Factors Modelling and Simulation (IJHFMS), Vol. 5, No. 1, 2015

Abstract: Repetitive tasks in industrial works may contribute to health problems among operators, such as musculo-skeletal disorders, in part due to insufficient control of muscle fatigue. In this paper, a predictive model of fatigue is proposed for repetitive push/pull operations. Assumptions generally accepted in the literature are first explicitly set in this framework. Then, an earlier static fatigue model is recalled and extended to quasi-static situations. Specifically, the maximal torque that can be generated at a joint is not considered as constant, but instead varies over time accordingly to the operator's changing posture. The fatigue model is implemented with this new consideration and evaluated in a simulation of push/pull operation.

Online publication date: Wed, 18-Mar-2015

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