Comment the word “TIRES” for my favorite exercises for strengthening everything below your knees. What’s a good Sports Car with flat Tires? Up to 30% of your power and energy transfer can be lost from your Feet alone… Your first line of defense for your knees is everything below it. The Spring Ankle is my favorite exercise for overall force absorption and power transfer as you’re training your body in each of those positions. It strengthens the entire foot and ankle complex The 3 way banded calf