Many home treadmills consist of adjustable incline settings

https://treadmills-for-homessiy865.clearminster.com/posts/7-things-about-tread-mill-you-ll-kick-yourself-for-not-knowing

Lots of home treadmills include adjustable incline settings, enabling you to simulate outdoor terrain for more powerful legs and better workout variety, whether you're training for hills or burning more calories.