EMS(Electric Muscle Stimulation) uses the natural principle of our central nervous system: muscles are electrochemical organs that need electrical impulses to contract. During X-Body training, an EMS device will activate both your fast-twitch and slow-twitch muscles using high-frequency electric currents, increasing not only the amount of muscle activated but also the intensity of your muscle contractions. In other words, you will experience a more thorough and intense workout for your muscles than ever before! If you are on a tight schedule getting in shape for a wedding, a photoshoot, a competition, or even a day at the beach, EMS is perfect for you: hours and weeks of training and results can be packed into just minutes and days.