Finite dimensional approximation to muscular response in force-fatigue dynamics using functional electrical stimulation

Recent dynamical models, based on the seminal work of V. Hill, allow to predict muscular response functional electrostimulation (FES), in isometric and non-isometric cases. The physical controls are modeled as Dirac pulses lead a sampled-data control system, sampling corresponding times stimulation, where output is force response. Such dynamics suitable compute optimized aiming produce constant or strengthening, but complex for real time applications. objective this article construct finite dimensional approximation provide fast optimizing schemes design smart electrostimulator reinforcement rehabilitation. It an on-going industrial project force-fatigue validated by experiments. Moreover it opens road application optimal track reference trajectory joint angular variable movement models.