Fiber-based modeling and simulation of skeletal muscles

Abstract This paper presents a novel fiber-based muscle model for the forward dynamics of musculoskeletal system. While bones are represented by rigid bodies, muscles taken into account means one-dimensional cables that obey laws continuum mechanics. In contrast to standard force elements such as Hill-type model, this approach is close real physiology and also avoids issue wobbling masses. On other hand, computational cost rather low in comparison with full 3D mechanics simulations. The cable includes sliding contact between individual fibers well bones. For discretization, cubic finite employed combination implicit time stepping. Several validation studies simulation motion scenario upper limb demonstrate potential approach.