STARTING POSITION:
Stand straight with your feet shoulder width apart next to a wall. Place your right hand on the wall slightly higher than your head with your elbow extended.
MOVEMENT:
Slowly rotate your body to your left side until you feel the stretch in your pectoral. Maintain the stretch during the required time and then return to the starting position. Then switch the arm.
TIPS: You should feel the stretch of the muscles but not pain.