Symptoms usually include: * Knee buckles and can no longer support your weight * Kneecap slips off to the side * Knee catches during movement * Pain in the front of the knee that increases with activity * Pain when sitting * Stiffness * Creaking or cracking sounds during movement * Swelling<unk><unk>  was once thought to occur mainly in women, due to the frequency of genu valgum and lax ligaments. However, now the frequency of this condition in any athletic person, man or woman, is apparent.
Patellar subluxation syndrome
Patellofemoral pain syndrome
Iliotibial band syndrome
Snapping hip syndrome
Femoroacetabular impingement
Anterior compartment syndrome
Medial knee injuries
Heel pad syndrome