Volunteers will conduct the test in a well-lit room with adequate ventilation and environment without noise, which will be placed in the sitting position with arm supported on fixed surface and so will surface electrodes connected on the paretic upper limb having as guidance for positioning electrodes muscular motor points previously located by an electrical stimulator and coupled with a conductive gel, so as to promote a more stable transitions and tendon insertions in order to quantitatively analyze the information sent nerve member.