Chad Miller breaks down the biomechanical importance of foot positioning in hitting and pitching. He introduces the concept of the foot as a three-legged stool, emphasizing the roles of the big toe, pinky toe, and heel in maintaining balance and optimizing rotational power. He discusses foot pathologies (varus and valgus) and their impact on kinematic sequencing, explaining how improper foot positioning can delay hip rotation and decrease efficiency. By ensuring proper ground contact with all three points of the foot, athletes can improve stability, maximize power transfer, and reduce energy loss during movement.