 This study will evaluate an innovative approach to reduce the debilitating symptoms of peripheral arterial disease PAD and ischemic pain during walking intermittent claudication by using a new Functional Electrical Stimulation FES system. The investigators hypothesize that combining the FES and walking one hourday FESWalk will significantly reduce pain during walking, improve locomotion, and enhance quality of life when compared to walking one hourday Walk alone after 8 weeks of intervention. 