These articles have quotations from film adaptations of J.R.R. Tolkien's novel The Lord of the Rings and related works: 1  The Lord of the Rings.  J.R.R. Tolkien's The Lord of the Rings (1978)
This causes a twisting on the tibia and changes its relationship to your kneecap. This can cause tracking problems as well. If your quadriceps or hamstring muscles are too tight, they also will affect the mechanics of the knee and lead to compensation patterns that cause pain.
When the lateral hamstrings are stronger than the medial hamstrings, the popliteus muscle will weaken. Overpronation or running in worn shoes will cause excessive lower leg rotation and overstress the popliteus. A common practice among runners is hanging out or walking around in old running shoes.