Muscle lengths and moment arms are important parameters of musculoskeletal models. These data determine muscle forces and moments and thus joint contact forces, an important value in musculoskeletal biomechanics. In the literature, there are many data available for simple movements (e.g. abduction in the scapular plane), but not yet for activities of daily living. The goal of this semester project is to simulate activities of daily living in a numerical musculoskeletal model and calculate the resulting muscle lengths and moment arms. The model which will be used in this project contains 28 muscle parts which cross 4 joints (glenohumeral, acromioclavicular, sternoclavicular joint and scapulothoracic gliding plane). For the simulation, the commercial FE software Abaqus will be used.