Ben Torres, For the Chicago Tribune
December 20, 2012
Stand straight with your feet under your hips. If you have a Thera-band, place it around the outside of both ankles so your feet are inside. (Get one for $15 at thera-band.com. They are color-coded to your level, so if you're a beginner, get the red one. If you don't have one, you can do the exercise without it.)
Starting with your right leg, extend it straight forward to the maximum height the Thera-band will allow. Pulse and lift here 8 to 10 times. Repeat the exercise to the side and to the back and then switch to the left leg. Hands can be placed on your hips. This exercise also challenges your balance, which works your core muscles.