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Types of Treadmills - Electric and Non Electric Running on a treadmill can increase the intensity of your workout without needing an electrical outlet. If you want to maximize your training gains, however, look beyond the standard motorized treadmills. Manual treadmills, also known as self-propelled treadmills or non-motorized machines, utilize your body weight and effort to move the belt. These machines typically have a slight slope and a curve to assist in getting the belt moving. T