October 11, 2010
I am not sure.
Since you have to concentrate on your foot placement it takes a mundane exercise(running) and makes it go fast and more enjoyable. It's sure better than a treadmill.
I recently moved back to Louisville after living in Lexington for almost ten years and want to explore more Louisville trails. I've been trail running just a few times and have only done it by myself. It is something I would like to do more.