Treadmills - The Good, the Bad, and the Ugly A treadmill can be a very useful tool for improving your cardiovascular fitness. It is also a good option for those with injury concerns. It is safe and convenient to use. Treadmills are great to train for intervals and high intensity. https://best-treadmill-for-home-u64744.blogs100.com/25186961/20-things-you-need-to-know-about-treadmill