I think we all have tight butts. Yes. I finally figured it out. My knee pain is directly affected by tight hip muscles. They are tightened for long time because i never stretch and they got shortened in long term which is leading to the contracting of the kneecap. When your hip muscles are tight your kneecap gets closer to the femur bone and the two bones rub each other all day. Muscle imbalance is a key factor on joint related pains. I should figüre out which muscles are tightened and shortened to find the right cure for my knees. I have been reading everywhere and all the doctors i see so far adviced me to strengthen the quadriceps but i think stretching is much more important. It sounds more logic to me. Do you think hip muscles have an effect on the kneecap? Maybe not because they are going through the backside of our leg and they got nothing to do with the kneecap. But there has to be a force which is contracting my kneecap to the femur bone. Maybe it is the tight quadriceps muscles. Can you tell me which muscle groups work more than the others while cycling?