This pilot study compared cyclical electrical stimulation of the forearm and elbow extensors to passive stretching. It looked at the affect of these interventions on hand function and sensation in CVA patients.
The full article is published in Neuromodulation 2005 Jul;8(3):193-202.
a_pilot_study_to_investigate_the_effects_of_electrical_stimulation_on_recovery_of_hand_function_and_sensation_in_subacute.pdf