Multi-pad FES System for Drop Foot Treatment

Inclusion Criteria: * hemiplegia caused by stroke * inadequate ankle dorsiflexion * passive ankle range of motion to neutral position * adequate cognitive and communication function to give informed consent * sufficient motor ability and endurance to ambulate at least 6 minutes of walking independently with or without an assistive device * calf muscle spasticity not higher than grade 3 according to the Modified Ashworth Scale Exclusion Criteria: * lower motor neuron injury with inadequate response to stimulation * skin rupture in the area of the electrodes * history of falls greater than once a week * multiple or infratentorial cerebrovascular lesions * severe cardiovascular disease, severe auditory and visual impairments * inadequate response to stimulation (range of motion elicit by maximal pleasant stimulation lower than active range in first 5 days of the therapy).