Treadmills - The Good, the Bad, and the Ugly A treadmill is a great tool to improve your cardiovascular fitness. It is also a good option for those who have injuries. It is safe and convenient to use. Treadmills are great to train for intervals and high intensity. They can https://treadmillworkout10066.59bloggers.com/25174176/10-amazing-graphics-about-treadmill