How to Fix Patellar Tendonitis Fast for Weightlifters

Jumper knee is the absolute worst. I am a weightlifter from Edmonton and the constant pain in my patellar tendon is making my cleans and snatches very difficult. I have tried taking time off but the moment I start jumping or squatting again the pain returns immediately.

I have read that heavy slow resistance training is the gold standard for tendon rehab. Has anyone tried doing 3 second eccentric and 3 second concentric squats for this? I have heard it helps remodel the tendon tissue better than just resting. I am curious what kind of volume and frequency you all used.

I am also considering BFR or blood flow restriction training to get a stimulus without as much joint stress. Has anyone here had success with that for tendon issues? I am trying to get back to full strength before the provincial championships this summer.