The goal of this pilot study is to assess the effectiveness of an electrical stimulation
therapy option for the treatment of chronic phantom limb pain in upper or lower limb
amputees. This therapy has been previously used for sports and joint injuries and is marketed
for relaxation of muscle spasms, re-education of muscle action, prevention of disuse atrophy,
increased local blood circulation, and maintaining or increasing range of motion. The
investigators would like to explore the idea that physically exercising the muscles of the
residual limb and increasing blood flow to the site of amputation through the promotion of
motor contraction using electrical stimulation decreases chronic phantom limb pain.