HOW: Begin in a seated position with your knees bent up and your arms behind your with your palms on the ground. Shift all of your weight onto one shoulder as you lift your hips up as high as you can. As your hips are rising, rotate the other side of your body towards the arm that is pushing up. Alternate sides for the prescribed amount of reps.
FEEL: You should feel your core and shoulder muscles working.
COMPENSATION: Keep your hips up as you rotate to the one side, don’t let them drop