STARTING POSITION:
Select the appropriate weight of the dumbbells. Stand up straight with a dumbbell in each hand on either side of your hips. You should use a neutral grip. Lift the dumbbells so that your elbows are around 90º. Contract your pelvic floor and core while keeping your chest up.
MOVEMENT:
Keeping your elbows close to your body, do an external rotation with your arms while you exhale. Return to the starting position in a smooth movement while you inhale.
TIPS: While your are doing the exercise, move only the elbow joint, make sure you don't move any other part of your body.