When a volleyball player jumps over and over again, it can cause tendonitis in the patella or patellar tendonitis, also known as “jumper’s knee” or patellar tendinopathy.
Jumper’s knee is caused by overuse – the wear and tear from repeated jumping causes damage, inflammation and irritation to the patellar tendon, the tendon that connects the shin bone to the knee bone.
Research by Visnes and colleagues (2012) published in the British Journal of Sports Medicine included 150 volleyball players. Twenty-eight of the participants ended up with jumper’s knee. Study findings concluded that the volleyball players with the greatest ability for making high jumps also had a higher risk of experiencing jumper’s knee. For more information, see: https://bjsm.bmj.com/content/early/2012/10/10/bjsports-2012-091385.short