Runner’s knee, or patellofemoral pain syndrome, is pain that occurs when the kneecap (patella) is stressed repetitively over time. As the name suggests, this condition most commonly in runners, however, it is not limited to athletes. It limits activities such as climbing stairs, kneeling, running, or jumping.
Runner’s knee is caused by a variety of factors which include overuse of the knee joint, alignment issues, biomechanical anomalies, muscle imbalance or weakness, or injury to the kneecap. It typically affects adolescents and young adults, and females more than males.
Signs and Symptoms
- Pain around the kneecap that worsens with activity
- Pain after sitting with knees bent
- Pain when walking up or down stairs
- Clicking or popping sound when bending the knee