http://community.fitnessanywhere.com/blogs/trx_mfp/archive/2008/03/20/mfp-week2-strength-workout-2.aspxThis week play with your stance to increase stability demands during the TRX Single Leg Chest Press (shown above). See how by moving your foot slightly an inch to the right or left of central really activates your core, while increasing the difficultyenCommunityServer 2007.1 SP2 (Build: 31113.47)