by Maria I. Martos, Francey Royce & Barbara Harris This article is from research pconducted by the authors and will discuss patellar tendinitis resulting from playing volleyball in indoor hard courts. Volleyball requires the lower limbs to execute many movements—running, jumping, side to side, frontwards, backwards—all of which can result in numerous injuries. We’ve elected to identify a specific movement—jumping—and a resulting injury—patellar tendinitis, also know as “jumper’s knee.” We will also discuss modes of treatment and prevention for this injury. Jumper’s knee is an irritation of the patellar tendon, or quadriceps tendon/ligament, of the knee. The knee is a hinge joint “roughly equivalent to a door hinge, but with.