HOW: Get set-up in a tall kneeling position with something under your knees for comfort and with a partner or weight holding your ankles down. While keeping your core tight and trunk straight, perform the exercise by leaning forward as far as you can that you can control, then quickly lower yourself down, catch yourself with your hands, and push yourself away from the ground to return to starting position.
FEEL: You will feel your hamstring muscles working very hard with this exercise. You will also feel your core muscles working to keep your trunk in a good position.
COMPENSATION: Do not round or bend your back. You should be able to draw a straight line from your knees to your forehead.