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How Does a Non Electric Treadmill Work? A manual treadmill is also called a self-propelled or flat-bed treadmill. It utilizes your body weight to move the belt. It does not require an electrical outlet and is easy to store. Research has shown that running on a non-motorized treadmill closely resembles outdoor running. This is especially true for HIIT-style training. It has a curved belt The manual treadmill with a curvature isn't powered by a motor and therefore doesn't require the same care as electric models. This type of treadmill also runs