Get in position with your elbows directly under your shoulders and your body in a straight line from elbows to heels. If you need to do this against a wall to ensure you are in a straight line, you can. Turn on your core by bringing your rib cage and pelvis closer to each other and then lift hips up off of the floor. Hand may be in a modified position (on the floor) or harder position (on the hip) or most advanced position (straight up in the air). Hold this position while you inhale and exhale strong and deep. Make sure you do not let your top hip rotate back.