Functional electrical stimulation (FES) is a therapeutic treatment technique that has been used by therapists for both the adult and paediatric population. It refers to the stimulation of muscle through electrodes placed on the skin over the target muscle. An electrical current is then used to stimulate the muscle to contract. The advantage of such a technique is that it can be utilised even if there are problems with selective motor control or voluntary activation. Devices such as the Walk Aide® utilise this technology to address issues with foot clearance during gait.