Changes

Part of the Vastus medialis that has the greatest angle to the kneecap is often considered as a separate [[Muscle|muscle]], the Vastus Medialis Obliquus or VMO. In reality the VMO is not a separate muscle, but a subdivision of the VM. There is some evidence that the VMO is activated by a separate nerve from the rest of the VM<ref name="KneeVMONerves"/>. A relative weakness in the VMO has been linked to kneecap alignment<ref name="KneeLinTomo"/> and therefore [[Knee Pain]]. It has also been observed that people with [[Knee Pain]] have a weaker VMO<ref name="KneeVMOAtrophy"/>.