Electrical Muscle Stimulation (EMS) is a technique that involves using electrical impulses to stimulate muscle contractions in the body. It works by delivering low-level electrical currents through electrodes placed on the skin near the targeted muscles. These electrical impulses mimic the signals that the central nervous system sends to muscles during voluntary contractions. EMS can be used for various purposes, including muscle recovery, injury rehabilitation, strengthening, and toning. It is often utilized in fitness training, physical therapy, and sports performance enhancement programs.