Tendonitis In Pre Teens What Is A Good Excesize For Tendonitis Of The Knee That I Can Do At Home?

What is a good excesize for tendonitis of the knee that I can do at home? - tendonitis in pre teens

I walk a mile in length. I discovered that I have patellar tendinitis. I wonder whether it means good or excersize can I do to help my sore knees to relax and not flexible in the first place to be, be without pain. Do you know?