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Why Are Better Than Electric Treadmills With a manual treadmill, which is flat your body's movements control the speed of the belt. They are less expensive since they don't require power. Lindsay enjoys the Bells of Steel wooden manual treadmill in her living space because it is quiet and works well. She says that it might not be the ideal treadmill for those who want to run on curved. No Electricity The biggest advantage of a manual treadmill is that it does not require electricity. This lets users run the treadmill by using their own energy s