Props: Flat ground or floor
This is similar to the cross-over crunch, only its focus is on the obliques, hips and shoulders.
Starting Position: From the Athletic Stance, activate your midsection by lifting your ribs up and away from your hips. Place your left hand on your hip so that you can feel the deep muscles of your core working for stability and extend your right arm over your head palm facing forward, balled up into a fist.
Action: Lift your right knee laterally, while at the same time pulling your elbow down to meet your right knee. Your side is creating the letter “C” for crunch.