Stand with a resistance band around your upper back and under your armpits.
Hold the ends of the band in both hands with your arms by your sides and elbows bent so that your hands point forward.
Pull forwards on the band to build tension.
Keep one arm gently by your side.
Keep your elbow tucked into your side as you turn your forearm away from you, leading with the back of your hand.
Return to the starting position.
