111 reactions · 9 comments | The arm goes across the face and...

Internal Rotation (IR) The arm and forearm whip through release using natural internal rotation of the shoulder. This creates more speed, spin, and efficiency with less stress on the elbow. The follow-through allows the arm to decelerate naturally (typically down and across the body). Hello Elbow The pitcher forces the hand up to the shoulder after release, often restricting natural whip. This can reduce speed and spin and place more stress on the elbow and shoulder because the arm is stopping a