<qa>  What is the term for FES-cycling?Surface electrical stimulation has for many years been widely used to retrain paralysed muscle and achieve the functions of standing and stepping. Recently a number of centres have used electrical stimulation of the leg muscles to achieve cycling. During cycling the quadriceps and hamstring muscles thigh muscles and sometimes also the gluteal buttocks muscles are stimulated to obtain a cycling motion. Stimulation is applied using adhesive electrodes placed on the surface of the skin. This form of exercise is known as FES-cycling FES Functional Electrical Stimulation. 