"Certain athletes are at higher risk of knee pain and non-contact knee injury than others."
The above statement is well known but unfortunately, not many of us know exactly why. Thankfully, the American Journal of Sports Medicine gave us some input into the biomechanical reasons some athletes are at risk of patellofemoral pain syndrome (sorry Mike) and potentially at risk of non-contact ACL injury. The information below is taken from two VERY recently published papers from the large scale Joint Undertaking to Monitor and Prevent ACL Injury (JUMP-ACL) study. This study examined the biomechanical variables involved in a jump-landing-rebound task.
Biomechanical Factors Potentially Involved with Risk of Non-Contact ACL Injury
Biomechanical Factors Potentially Involved with Patellofemoral Pain Syndrome
This is what I think:
The preceeding information was derived from the two most recent issues of AJSM. It is strongly suggested that for a complete understanding, readers view the papers in their entirety as Padua et al was based on validating the Landing Error Scoring System and Boling et al interestingly found higher hip ER strength and lower ground reaction forces as risk factors.