The knee structure consists of larger joints that are meant for stability and weight acceptance and a smaller knee cap joint that provides mobility and better mechanical advantage for the surrounding knee muscles. All these components are necessary for a strong and stable, yet powerful and movable knee that will endure the exponential compressive loads when walking or running. If the knee is not strong enough to produce a stable joint, forces will translate up to the hip joint and down to the ankle joints. Thus leaving other joints such as the hips, lower back, ankles including the knee joints to be susceptible for greater forces and then risk for injury. Since many muscles affect the knee joint, muscle imbalances can influence the performance of the knee. It can produce a knee cap tracking dysfunction that can spawn injuries, such as runner’s knee, patellar tendonitis,chondromalacia, and knee “popping.” It has been hypothesized that poor knee machanics of the knee cap may be a precursor for arthritis of the knee as it changes the mechanics and forces at the larger knee joint.