I’m Dar Fuentes — founder of Definitive Fitness Training. I help athletes fix jumper’s knee and rebuild their bounce.

As a former club athlete with a 40+ inch vertical, I know what it’s like to have your power taken by knee pain. I battled Osgood Schlatter and severe jumper’s knee for years — and nearly lost the game I loved.

Through relentless trial and error, I rebuilt my knees, returned to a 41" vertical, and created the exact system I now use to help athletes stay in the air — pain-free.

If you're tired of guessing, I've got the blueprint.