Prone rowing into external rotation

The exercise shown is part of an exercise program for throwers. To perform the exercise, the patient lays face down with their throwing arm hanging straight towards the floor, holding an appropriate dumbbell. The patient gradually raises their arm, while simultaneously bending their elbow, until the arm is at the level of the table and parallel to the floor (this is a prone row). The forearm remains pointed towards the floor. After pausing for one second in this position, the patient externally rotates their shoulder until the dumbbell is as the height of the table, while maintaining elbow flexion at 90 degrees. This position is held for 2 seconds, then the shoulder is gradually internally rotated, and the arm lowered back to the starting position.