The Lehrstuhl für Ergonomie of the Technische Universität München is working on a generalized strength based discomfort model of posture and movements. By evaluating individual discomfort feelings of subjects regarding different postures, movements and different levels of force the first steps to find this function are realized. Different measuring machines permit the measuring of torques / force moments inside all joints of the human body. The individual feeling of discomfort is evaluated by using the CP50-scale for every fixed joint angle as well as every measured value. Discomfort is depending as well on the posture as on the level of force applied in a certain posture. Additionally the direction in which a certain force has to be applied influences discomfort feelings. Regarding different levels of force applied in a fixed posture the discomfort feeling increases linear with growing percentages of the maximal force/torque. Discomfort functions are calculated for every direction of every degree of freedom of the measured joints. By the analysis of movements and the definition of every discomfort value for every joint angle in combination with an applied percentage of the maximal torque it will be possible to validate a general discomfort model for human motion. The basis for this approach is the knowledge that the evaluation of discomfort for a complete movement is determined by the maximal discomfort felt in one joint or body part.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Strength Based Discomfort Model of Posture and Movement


    Additional title:

    Sae Technical Papers


    Contributors:
    Bubb, Heiner (author) / Zacher, Iris (author)

    Conference:

    Digital Human Modeling for Design and Engineering Symposium ; 2004



    Publication date :

    2004-06-15




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Strength Based Discomfort Model of Posture and Movement

    Zacher, I. / Bubb, H. / Society of Automotive Engineers | British Library Conference Proceedings | 2004


    Strength based discomfort model of posture and movement

    Zacher,I. / Bubb,H. / Tech.Univ.Muenchen,DE | Automotive engineering | 2004


    A New Discomfort Function for Optimization-Based Posture Prediction

    Marler, R. T. / Rahmatalla, S. / Shanahan, M. et al. | British Library Conference Proceedings | 2005


    A New Discomfort Function for Optimization-Based Posture Prediction

    Abdel-Malek, Karim / Shanahan, Meagan / Marler, R. Timothy et al. | SAE Technical Papers | 2005


    FOCOPP - An Approach for a Human Posture Prediction Model Using Internal/External Forces and Discomfort

    Recluta, Daniele / Zimmermann, Dominik / Wirsching, Hans-Joachim et al. | SAE Technical Papers | 2005