Dumbbell Lying Shoulder Rotation (External)
1) Lie on your right side on the floor.
2) Grab the dumbbell with your left hand. Bend the elbow at 90 degrees and tuck your arm into the ribs.
1) Keep the bend in your elbow and slowly lift the dumbbell towards the ceiling.
2) Pause for a second at the top. Now lower your arm back to the starting position.