Cascade Fitness: Ultra Runner TreadmillDescription Cascade Fitness: Ultra Runner Treadmill The Cascade Ultra Runner not only gives you all the exercise benefits of a self powered curved treadmill, it gives you the option to add 4 levels of magnetic resistance to add higher intensity interval training. Walk or run at your own pace then add resistance to burn more calories and add variety to your workout. Comfortable handlebars accommodate all user sizes and facilitate different exercises.