Hold each end of a long resistance band in your hands. Place both feet onto the middle of a resistance band and stand with them just wider than shoulder width apart. With a slight bend in your knees, lean your torso forward to about 45 degrees, keeping your spine neutral throughout. Your arms should be extended toward the floor. This is your start position. Keeping your torso stationary and maintaining a slight bend in your elbows at all times, drive your left hand out and up to your sides. Continue until its parallel to the floor. Squeeze your rear delts as you do and exhale. Hold for a count of one before returning to the start position. Inhale as you do so. Perform all the required reps on one side before changing to the other.