In sitting, bring your dumbbells to shoulder level, keeping your elbow facing forward.

Lift your arm above your head making sure that the dumbbells are facing forward throughout the exercises.

Come back down slowly with good control.

The aim of the exercise is to stop your elbow from moving towards the side and keep straight in front of you all the time.

Will help:

Rotator cuff injuries, especially external rotator tendons

Long head of biceps injuries

Thoracic mobility