I find that whenever I do any kind of intense abs exercises my tummy sticks out. It's like the muscles go solid but protruding.
Doing the Shred and find that when doing anything like push ups, plank etc Jillian will say that your abs should be tight, but I just can't seem to hold my stomach in and exercise.
Am I building some kind of hideous blocky core? What's going on? Anyone else find this?