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. 2020 May 24;19:34. doi: 10.1186/s12938-020-00773-4

Fig. 3.

Fig. 3

Fundamental components of functional electrical stimulation therapy. FEST has three components. First, a patient must be actively attempting a motor task. Second, an FES system produces the intended movement which also generates the corresponding correct sensory feedback. Third, a therapist guides the limb in motion to ensure the quality and correctness of the movement. The therapist also adjusts the stimulation according to the changes observed in the patient throughout rehabilitation