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This paper generalizes a discomfort model for climbing tasks of the handicapped with prosthesis limb. The model is integrated, by ICT technology, into the simulated task scenario to indicate to what extent the climbing task causes discomfort and to analyze the direct cause of discomfort at the micro-motion level. Furthermore, it can predict the potential harm and accidents in the climbing tasks by calculating the accumulated biomechanical results of joints posture displacement and torque. Meanwhile the research focuses on the analysis on each movement of around the prosthesis socket, which will provide analysis tool for the design of prosthesis from the point of comfort. [ABSTRACT FROM AUTHOR]