STARTING POSITION:
Stand up straight, bend your right elbow around 90º and grab your right forearm. Contract your pelvic floor and core while keeping your chest up.
MOVEMENT:
Keeping your right elbow close to your body, do an isometric external rotation with your right arm while you exhale. Return to the starting position in a smooth movement while you inhale. Maintain the effort for the required time. Repeat the movement for the specified amount of repetitions, then switch sides and repeat the exercise.
TIPS: Make sure you do the exercise without any movement of your body.