With built-in speed controls and predetermined programs

https://home-treadmillxgzg473.scriblorax.com/posts/10-untrue-answers-to-common-treadmill-gym-questions-do-you-know-which-ones

With built-in speed controls and predetermined programs, home treadmills make it easy to follow directed exercises that support fitness goals like endurance, weight loss, and endurance, even for newbies.