With built-in speed controls and predetermined programs

https://www.hometreadmills.ukkwyo609.talesignal.com/posts/why-treadmills-is-a-must-at-the-very-least-once-in-your-lifetime

With built-in speed controls and pre-programmed programs, home treadmills make it simple to follow directed workouts that support physical fitness objectives like endurance, fat loss, and endurance, even for novices.