Slim & Tone your Entire Mid-Section in Just Minutes per day the Easy Way With traditional crunches & sit ups you could strain your neck & back, & waste precious energy at the beginning of the motion. In the end they're just too hard. When you don't see results, you give up. Total Core starts you with your abs already engaged, so you're getting maximum results all through your abs & obliques. The progressive power coils assist you through the most difficult part of the move, the upward motion, which means you can do more sit ups & exercise for longer with less stress & strain to your neck & back. While on the way back down the power coils add resistance to strengthen your back for the firm sexy hips & lower back you want. Total Core is your easy workout solution