Patients at waiting list for heart transplant will be invited to participate on protocol of NMES using Russian stimulation wave (2.5 kHz, burst at 50Hz, on/off: 3/9 sec), named NMES group or sham stimulation, named control group. The NMES will be applied for 50 minutes, twice a week on both quadriceps femoral muscles during 7 weeks. The patients will be evaluated every week for distance walked during six minutes walk test (6MWT), heart rate variability, and functional status according to New York Heart Association. All patients were evaluated at the beginning and after completion of the protocol for quality of life with Minnesota Living with Heart Failure Questionnaire (LHFQ).