Patella Tendinopathy (Jumper’s Knee or Patella Tendinopathy)
Your knee will be painful when you start exercising, but should ease once you’ve warmed up. The pain will return after exercise and you’ll have a sore knee for 24 hours or so. You may experience a sharp pain when getting up from a chair, and find that the tendon is so tender that even a small amount of pressure causes a lot of pain.
Tendinopathy often causes pain after running or jumping, hence its nickname ‘Jumper’s knee.’