Do you have any tips for someone to deal with frequent walking who has patella femoral syndrome?

Stretch quads: You should regularly stretch your quadriceps muscles and avoid deep knee bending exercises. Perform terminal extension strengthening exercises with light weights only like 1/4 squats or leg presses, avoid stair masters, keep you bike seat up higher, don't do lunges, ice your knee after exercises. Plan a day of rest at least between leg exercise days for recovery.