Treadmills - The Good, the Bad, and the Ugly A treadmill can be a beneficial tool for improving your cardiovascular fitness. A treadmill is a great option for those concerned about injuries. It is safe and easy to use. Treadmills can be utilized to train for intervals and high intensity. https://treadmill66813.activoblog.com/24961370/the-ultimate-cheat-sheet-on-treadmills-at-home