HOW: Start in a standing position with a band positioned at waist height holding the band in each hand with your thumbs facing forward. While keeping your elbows as straight as you can, begin the exercise by moving your arms backwards and squeezing your shoulder blades together. Hold the end position for a moment, then return to starting position and repeat. If you need to slightly lean your trunk forward to get more shoulder extension range of motion, that is ok.
FEEL: This should feel like an upper body workout, specifically your tricep, the back of your deltoids, and shoulder blade muscles.
COMPENSATION: Keep the rest of your body still, do not excessively arch or bend your back. Do not use momentum to move your arms. Do not let your elbows excessively bend. Drive the motion from your shoulders and shoulder blades.