Musculoskeletal disorder (MSD) is one of the major health problems in mechanical work especially in manual handling jobs. Muscle fatigue is believed to be the main reason for MSD. Posture analysis techniques have been used to expose MSD risks of the work, but most of the conventional methods are only suitable for static posture analysis. Meanwhile the subjective influences from the inspectors can result differences in the risk assessment. Another disadvantage is that the evaluation has to be taken place in the workshop, so it is impossible to avoid some design defects before data collection in the field environment and it is time consuming. In order to enhance the efficiency of ergonomic MSD risk evaluation and avoid subjective influences, we develop a new muscle fatigue model and a new fatigue index to evaluate the human muscle fatigue during manual handling jobs in this paper. Our new fatigue model is closely related to the muscle load during working procedure so that it can be used to evaluate the dynamic working process. This muscle fatigue model is mathematically validated and it is to be further experimental validated and integrated into a virtual working environment to evaluate the muscle fatigue and predict the MSD risks quickly and objectively.
Determination of subject-specific muscle fatigue rates under static fatiguing operations
Tsinghua University（清华大学）；Institut de Recherche en Communications et en Cybernétique de Nantes（南特通信与控制论研究所）；École Centrale de Nantes（南特中央理工学院）；EADS Innovation Works（EADS创新工厂）
A new simple dynamic muscle fatigue model and its validation
Institut de Recherche en Communications et en Cybernetique de Nantes, UMR CNRS 6597, Ecole Centrale de Nantes（南特通信与网络研究所，法国国家科学研究中心联合研究单位6597，南特中央理工大学）；Department of Industrial Engineering, Tsinghua University（清华大学工业工程系）
A novel approach for determining fatigue resistances of different muscle groups in static cases
Tsinghua University（清华大学）；École Centrale de Nantes（南特中央理工学院）；Institut de Recherche en Communications et en Cybernétique de Nantes（南特通信与控制研究所）；EADS Innovation Works（欧洲宇航防务集团创新中心）
Multi-Objective Optimisation Method for Posture Prediction and Analysis with Consideration of Fatigue Effect and its Application Case
Institut de Recherche en Communications et en Cybernétique de Nantes（南特通信与控制研究所）；Ecole Centrale de Nantes（南特中央理工学院）；Tsinghua University（清华大学）；EADS Innovation Works（EADS创新工作室）
Fatigue evaluation in maintenance and assembly operations by digital human simulation
Institut de Recherche en Communications et Cybernétique de Nantes（南特通信与控制研究所）；École Centrale de Nantes（南特中央理工学院）；Tsinghua University（清华大学）；EADS Innovation Works（欧洲宇航防务集团创新工厂）
The interplay of fatigue dynamics and task achievement using optimal control predictive simulation
Laboratoire de Simulation et Modélisation du Mouvement（运动仿真与建模实验室）；École de kinésiologie et des Sciences de l’Activité Physique（运动机能学与体育活动科学学院）；Université de Montréal（蒙特利尔大学）；Centre de réadaptation Marie-Enfant（玛丽-昂方康复中心）；CHU Sainte-Justine（圣贾斯汀大学医疗中心）
