A study of NCAA Division I football players revealed persistent atrophy in the quadriceps and gastrocnemius muscles 2 years ...

Traditional bone-patellar tendon-bone and hamstring tendon ACL grafts are not without limitations. A growing body of anatomic, biomechanical and clinical data has demonstrated the utility of ...

And basically it's a tendon that's a part of the extensor mechanism that helps actually extend your knee. So you have your quadricep muscle group above it, which goes into a quad tendon ...