Purpose: To develop the upper abs.

Execution: Lie flat on a mat with your hands behind your head; keeping your feet on the floor, curl up in a smooth motion as high as you can, lifting your shoulder blades off the floor; hold the peak contraction position for a moment, exhaling at the top; lower your body slowly, allowing your back to unroll back onto the floor; come back to your starting position before curling up for another rep.