Numerous home treadmills consist of adjustable slope settings

https://www.hometreadmills.ukbipz595.halcyonledger.com/posts/the-no.-1-question-everyone-working-in-running-machine-for-home-should-know-how-to-answer

Lots of home treadmills consist of adjustable incline settings, allowing you to replicate outdoor terrain for stronger legs and better workout range, whether you're training for hills or burning more calories.