I think it helps somewhat. As you know the pain is variable from day to day anyways so it is hard to tell. Things that help me more than altitude are raising my seat in the MH that allows me to straighten it more. I always where shorts and have arthritis creams next to me to rub on knees. Right knee is worse than left so when not in traffic on a flat road I put it in cruise control and put my leg on the dog house for a while. When I first bought the MH 10 years ago I could not drive 1/2 hr before knee pain kick in. Also riding a bike helps to keep knees loose. After mods I was able to drive to Alaska in 06 and in many ways it seems better