This is the most common running-related injury. Known as patello-femoral pain, and sometimes diagnosed as chondromalacia of the patella, runner’s knee is essentially irritation of the cartilage of the kneecap.

The condition of runner's knee results in pitting or fissuring of the cartilage to varying degrees.

While running, various mechanical conditions may predispose runners to a poorly tracking kneecap. This can result in irritation and/or damage to the kneecap.

Runners will notice pain near the kneecap, especially after sitting for extended periods of time with knees bent or while walking down stairs or downhill.

Appropriate treatment involves eliminating or modifying activities that cause the pain; correcting improper bio mechanics that allow the injury to arise; and avoiding positions that further irritate the condition, such as sitting for prolonged periods of time.