Exercise Machine Elliptical

I really need anything, let me train every day without hurting my knees. Running has no effect, but only to a staircase really hurts. If the elliptical cross training without pain for people with arthritis? I have arthritic knees and I inline skating. I did not do the elliptical, but it looks like it would hurt. I have relatively good and my knees Cross Trainer, it hurts. What I suggest is ask a sports trainer.They work with people every day with injuries and nutrition fitness.Check this website have a professional coach, answering the question of luck yours.Good. http://athletictraining.forumsfourfree.com