TRAIN YOUR HAMSTRINGS FOR BETTER KNEE HEALTH & FUNCTION: Most people think the knee just bends and straightens in a straight line—but that’s only part of the story. The hamstrings play a critical role in managing and controlling rotation in the tibia and fibula relative to the femur. Rotation is absolutely essential for a healthy, high-functioning knee. When knees don’t bend well, they often times feel like crap. When you understand which muscles control that rotation—and you train them properly