FullFitness

STEP 1. Lying on a slant board, with your hips lower than your head, keep your knees slightly bent.

STEP 2. Slowly pull your hips upward and inward, like you would if emptying a bucket of water resting on your pelvis. Keep your knees at the same angle throughout the movement.

STEP 3. Pause, then slowly lower your hips to the starting position.