The Torque Deficit: Why Your Shoulder Hurts When You Spike

If your shoulder screams after a tournament, you are likely suffering from a "Torque Deficit." Many young hitters try to generate power purely from their arm swing, treating the shoulder like a whip. This is a recipe for a torn rotator cuff. The secret to hitting harder (and playing pain-free) lies in "Thoracic Rotation"—using your massive core muscles to drive the arm.