HOW: Begin this exercise seated on the edge of a chair. The leg that you intend to work needs to be straight with your heel resting on either a surface that slides or a tile surface with a towel or sock on your foot. With your leg straight and directly in front of you, slide your foot out to the side to what feels comfortable.
FEEL: You should feel the muscles on the outside of your hip working as you slide your foot out to the side.
COMPENSATION: You should not feel the muscles in the front of your hip working. If you feel the muscles in the front of your hip, or your hip flexors working, attempt to perform this exercise by pushing gently down into the surface to engage your posterior hip.