A good experiment would be trying an urban track, like you'd see stereotypically at a high school or some parks. Then you'd have the extreme artificial urbanis

A good experiment would be trying an urban track, like you'd see stereotypically at a high school or some parks. Then you'd have the extreme artificial urbanism, yet also have the lazy "just walk the path no interruptions" of a trail. I also walk at lunch time, also whenever shifting gears during the day, and hike on the weekends on trails, and I don't find a huge difference.