AREAS INVOLVED: Upper back, Posterior deltoids
Sit with legs extended in front.
Twist your upper back, crossing your right arm across your chest and putting your right hand on the floor. Your left arm is behind your torso with your left hand on the floor.
Gently twist until your feel mild tension. Hold for ten seconds, then gently twist further until slightly more tension is felt. Hold for ten seconds.
Return to starting position, and repeat the sequence on the opposite side.