Effect of Electrical Stimulation to Forearm on the Pain and Motion

Abstract

Electric stimulation therapy is used to the patient with paralysis in clinical site. Therapist have to gradually raise electrical amount because of subject's physical conditions. It takes time to decide electrical amount. It's needed to develop the system which decide electrical stimulation pattern by using body parameter like Body Mass Index and the position of electrode attached in forearm. We verify the effect of electrical stimulation pattern to the pain and motion. We conducted two experiments. At the first, subject have electrical stimulation to the median nerve in forearm. We set six pattern frequency in the range of 50~2000 Hz and voltage in 50 V. And we evaluate the difference of pain in individual using Visual Analog Scale. Subject have electrical stimulation to the flexor hallucis longus. We set the frequency in 1000 Hz and voltage in 60 V. And we measured displacement of thumb using the clip gauge.