Patellar tendinitis is an injury to the tendon connecting your kneecap (patella) to your shinbone, is a relatively common cause of pain in the inferior patellar region in athletes. It is common with frequent jumping and studies have shown it may be associated with stiff ankle movement and ankle sprains. Patellar tendinitis, otherwise called jumper's knee, is most regular in competitors whose games include frequent jumping— for example, basketball and volleyball.
Pain is the first symptom of patellar tendinitis, usually between your kneecap and where the tendon attaches to your shinbone (tibia). Anterior knee pain over the patella tendon, Pain made worse with jumping, landing or running activity and sometimes with prolonged sitting, Onset of pain is usually gradual and commonly related to an increase in sport activity, Localised tenderness over the patella tendon.
The lower extremity dynamics developed during the volleyball spike and block jumps to find out if predictive relations exist between jump dynamics and patellar tendinitis. Lower extremity movement biomechanics were analyzed for 10 members of the 1994 Canadian Men's National Volleyball Team (all right-handed hitters). Based on physical examination, 3 of the 10 players had patellar tendon pain associated with patellar tendinitis at the time of testing.