Dumbbell Shoulder Internal Rotation at 90 Degrees Abduction

Instructions

1. Stand or sit and raise one arm out to the side to 90 degrees of abduction with the elbow also bent to 90 degrees, forearm pointing upward.
2. Hold a light dumbbell in the hand of the working arm.
3. Keeping the upper arm stationary, slowly rotate the forearm downward until it is parallel to the floor.
4. Pause briefly, then rotate the forearm back up to the starting position.
5. Repeat for the target number of reps, then switch arms.