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Advantages of a Non Electric Walking Treadmill Manual treadmills aren't powered by electricity, as are motorized treadmills. These treadmills allow you to walk, jog, and even sprint. They also allow for interval training workouts. They are light and portable which makes them easy to store in your gym at home. This makes them perfect for those who don't have plenty of space or who are looking to cut down on the expense of electricity. 1. You can control your speed