Computation of Muscle Fiber Contraction Dynamics.

This paper contains the modeling of muscle fiber contraction dynamics as a result of electrical stimulation. The novelty of the model is the possibility of running simultaneous analyses of the fiber’s action potential propagation and its biomechanical response. Simulations for different muscle fiber types, stimulus rates and contraction types can be run. The model correctly predicts the occurrence of smooth tetanic contractions due to the expected fusion frequencies and the behavior of the fiber’s elastic elements. It can be used as a base for developing higher dimensional models of motor units or a complete muscle that is stimulated by electrodes.