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How Does a Non Electric Treadmill Work? A manual treadmill is also known as a self-propelled or flat-bed treadmill. It relies on your body weight to move the belt. It doesn't require an electrical outlet and is easy to store. Studies have shown that using a treadmill without motors is more like running outdoors. This is particularly true for HIIT training. It has a curving belt The manual treadmill with a curvature isn't powered by a motor and therefore does n