EMS is a new training system that combines Electro Muscle Stimulation & active exercise. During traditional exercise, the brain sends signals to the muscles to bring about contractions.
EMS Training mimics the action of the central nervous system, activating muscles in the same way, but using external impulses.
These are delivered via electrodes onto the skin directly above the muscles. The impulses reach deep muscle layers which are hard to activate through conventional training. Your muscles will not tell the difference, but work out much more effectively.