Electrical stimulation is a modality used to elicit a muscle contraction using electrical impulses. Electrodes, controlled by a unit, are placed on the skin over a predetermined area. Electrical current is then sent from the unit to the electrodes and delivered into the muscle causing a contraction.
Application of a suitably modified electric current to stimulate excitable tissue like nerves and muscles to produce therapeutic benefits. Electrical stimulation is a modality which is used by physiotherapists if a patient has injury or illness that cause pain or has limited mobility.