Or walking to and from a lunch spot
Perhaps you left the office for lunch every day. You went somewhere about a 10-minute walk away. So, think about it: that was a 20-minute walk built into each day. And you walked fast, because you didn’t want the walk to cut into your break too much, so it was a 20-minute power walk each day. Now, you just walk from your couch to your kitchen to have lunch.