Fat burning zone…. Hiit it up Posted by jillienfit on January 5, 2014 Posted in: Uncategorized. Leave a comment http://www.builtlean.com/2013/04/01/fat-burning-zone-m/ 41.859583 -88.376372 Share this:TwitterFacebookLike this:Like Loading... Related Posts navigation ← Close grip pull downs. Weighted plank →