Secure a long resistance band around a high anchor point and take one end in one hand. Take a few steps back and come to a kneeling position. Your arm should be extended directly out in front of you with your palms facing down. Lean your torso forward, aligning it with the angle of the resistance band, keeping your core braced and a neutral spine. This is your start position. Proceed pull your hand and elbow back towards the centre of your spine. Exhale as you do so and squeeze your back muscles. Maintaining control reverse the movement back to the start position. Repeat for the required number of reps (or time) and then swap sides.