HOW: Begin by lying on your stomach. Bend the knee of one leg. Keeping the knee bent at a right angle, lift the leg up towards the ceiling. Return the leg to the ground.
FEEL: You should feel this in the back of the hip of the leg you are lifting. You may also feel feel the back of the thigh to a lesser degree.
COMPENSATION: Avoiding letting the knee straighten. Avoid arching your low back as you lift the leg off the ground.
