HOW: Assume the tall plank position on your hands and knees. Starting with either your right or left hand, lower yourself to your elbow. Then do the same with your opposite side. Next, come back up to the tall plank position on your hands.
FEEL: You should feel all the muscles in your stomach working to stabilize you. You may also feel your shoulders, chest, and triceps working.
COMPENSATION: Avoid rotating your torso as you perform this. Keep your trunk neutral by keeping your core engaged.
