What can prolonged repetitive compressive forces on the knees lead to in PFPS?

Prolonged repetitive compressive forces on the knees can lead to an imbalance of the Vastus Medialis Oblique (VMO), which is a key muscle for stabilizing the patella. When there is excessive pressure or strain on the knee joint, particularly from activities that involve repetitive knee movements like squats or jumping, it can disrupt the strength and coordination of the muscles surrounding the knee.

The VMO works in conjunction with other quadriceps muscles to control patellar tracking during movement. If the VMO becomes weaker or less activated compared to the other quadriceps muscles, this can cause the patella to track improperly, leading to conditions like Patellofemoral Pain Syndrome (PFPS). This imbalance can result in increased pain and further joint issues, as the patella may not glide smoothly within its groove on the femur, causing irritation and inflammation.

Strengthening the VMO through targeted exercises can help restore balance and improve patellar tracking, alleviating symptoms associated with PFPS. Therefore, recognizing the role of the VMO in maintaining knee stability is essential for understanding the implications of prolonged compressive forces on the knees.