<qa>  What is the aim of electrical stimulation?In spinal cord injury SCI, the paralysed muscles generally retain their ability to contract and electrical stimulation can be used in rehabilitation as a therapy. With functional electrical stimulation FES the aim is to restore some normal motor functions such as standing, stepping or cycling. A number of studies have investigated the physiological effects and potential therapeutic benefits of lower-limb FES exercise. These studies have shown that the benefits include restoration of muscle bulk and strength, a reduction in the rate of bone demineralisation, improvements in the range of joint motion, and relaxation of spasm. Standing is an important part of rehabilitation therapy for paraplegic patients, and helps to alleviate some of the secondary effects of paralysis. 