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How to Use a Treadmill Without Electricity Research has shown that running on treadmills is just as taxing to your body as running outdoors. However, there's no one-size-fits-all treadmill solution. Electric treadmills come with a motor that moves the belt at the speed you choose. These are great for training specific exercises or a perfect way to practice your race pace. Motorized Treadmills Motorized treadmills have a motor-driven belt system that is able to move across th