I may be stating the obvious, but my trainer told me that no matter how many ab crunches you do, you will not get abs of steel or a flat tummy unless you are skinny, ie: I am 165 and he had mentioned that until I get to the 130 (pushing it 140 range), I will more than likely not see any abs. He also encourages planks over ab crunches. When I see him training his really fit clients, I never see them do sit-ups, instead he'll do interval training with plans. Just putting it out there.
Thank you both for answering me. I mainly work out on my treadmill, and I was looking for something that would help me loss my tummy a bit. So i can work on getting rid of it.
It doesnt matter how good the workout video is, or how many crunches you do. The only way yo uwill see your abs is to reduce Body Fat Percentage. For me, i dont see my abs until im below 18% BF....