This method involves performing dynamic movements to counteract electrically stimulated muscle contractions. Unlike a single electro-stimulator that applies to one area of ​​the body at a time, XBody allows intensive work on the entire body synchronously throughout the session and synchronously.

Some studies say it provides a more efficient workout, and Graeber says you can fire up more muscle fibers throughout your body with EMS. “So in conventional training … we're talking about 40—50% of the muscle fibers in one muscle getting recruited,” he says. But EMS can stimulate up to 90%, he adds.