Lots of home treadmills consist of adjustable slope settings

https://www.hometreadmills.ukxiwv606.silverstonebrief.com/posts/walking-treadmill-tips-from-the-best-in-the-business

Numerous home treadmills include adjustable incline settings, enabling you to imitate outdoor terrain for more powerful legs and much better exercise variety, whether you're training for hills or burning more calories.