The causes of patellofemoral syndrome are the intense exercises that repeatedly strain the knee, like stair climbing, jogging, and squatting.
The common causes of Osgood-Schlatter disorder, is preteen or teen athletes who participate in games or sports that require running, jumping, or climbing and descending stairs are prone to the persistent pulling of the patellar tendon on the region below the knee where the tendon connects.
The reason why women are more vulnerable to knee injuries than men based on anatomical factors is that , women frequently have smaller knee muscles, which increases instability and increases the risk of a torn ligament if the ligament is overextended.
What Causes Osgood-Schlatter Disease?
Osgood-Schlatter disease develops during the adolescent growth spurt. The rates at which bones, muscles, and tendons expand vary during a child's growth spurt. The growth plate at the top of the shinbone is pulled in OSD by the tendon that attaches the shinbone to the kneecap.