Athletes all over the world widely use electronic muscle stimulation as a form of training. It is proven to be an effective, efficient method of toning and building muscle mass. An electronic muscle simulator provides electrical impulses that control the muscles through the muscles motor nerves. Adjusting the impulses allow the person working out to specifically targeting workouts for power, endurance, or resistance. Not only is it effective for fitness and training, it's also great for muscle rehabilitation. Recovery from surgery is shortened by this method, as the patient is able to workout too much strain or tension being placed on the patients body. Electronic Muscle Stimulation can also be used successfully for muscle atrophy, reeducation of muscles, increasing range of motion, joint replacement, and much more. Muscle simulators are ideal for physically challenged individuals, those living sedentary lifestyles, those in need of getting toned and trimmed fast, and those presently going through physiotherapy.