Treadmills - The Good, the Bad, and the Ugly A treadmill can be a useful tool for improving your cardiovascular fitness. A treadmill is a great option for those concerned about injury. It is safe and convenient to use. Treadmills can be used to train for intervals and high intensity. https://treadmill-for-home45899.blog-a-story.com/4317751/you-ll-never-guess-this-treadmill-s-benefits