Comments on: Don’t be afraid to go behind a “fat-burning zone” when you do cardio. http://www.noexcusesgym.com/2008/04/20/dont-be-afraid-to-go-behind-a-fat-burning-zone-when-you-do-cardio/ fitness, weight training, nutrition, lifestyle, health Mon, 08 Sep 2008 15:28:25 +0000 http://wordpress.org/?v=2.0.4