Prone Overhead Dowel Shoulder Flexions

WHY? This exercise is great for improving shoulder stability and mobility which is crucial for creating a consistent swing.
Lay head on floor and extend arms in front, gripping the dowel in both hands shoulder-width apart.
Brace core and squeeze shoulders/upper back to raise dowel over head. Hold overhead for 1-3 seconds
Slowly release to lower back to floor. Repeat for required reps.