The patellar tendon is the attachment between the bottom of the knee cap (i.e. patella) and the top of the lower leg (i.e. tibial tuberosity). It attaches the thigh muscle (i.e. quadriceps) to the shin bone which allows you to straighten the lower leg. Pain is initially felt during jumping but the pain may also occur during other knee movements.
You should seek medical attention if your knee pain is sudden in onset and severe, or associated with significant swelling, redness or warmth of the knees.
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