Runners Knee More Condition_symptoms What Is The Best Way To Workout My Thighs When I Have Runners Knee?

What is the best way to workout my thighs when i have runners knee? - runners knee more condition_symptoms

Ive tried for a few weeks' rest, but once I start working again on my knees begin to ache. I need to strengthen my legs and the sound of it. I drive on the exercise bike and do leg lifts.