Using your legs effectively in basketball defense is crucial for maintaining a strong stance and staying in front of your opponent. Your legs provide the foundation for quick lateral movements, allowing you to shuffle side to side and mirror the offensive player's actions. Bending your knees slightly and staying on the balls of your feet helps you react quickly to sudden changes in direction. Strong leg muscles also enable you to jump and contest shots without losing balance. Consistently training your legs will improve your defensive agility, making it harder for opponents to drive past you.