This movement is intended to help fix poor posture, enhance rotator cuff strength, and improve overall shoulder health. Start with holding the band at waist level with an underhanded grip, grip width should be about even with the shoulders and arms at your sides. Squeeze your shoulder blades to start this movement and try to make them touch together. You can think of trying to point your thumbs directly behind you as a tip to maintain form. Keep your elbows tucked in the entire time. If the band is too easy/light, then bring your hands closer together. If it is too heavy/difficult, spread them apart for a wider gip or use a lower resistance band.