Have either of you looked into chair yoga or a yoga for seniors? You don't have to be a senior to use them? Basically, there's a yoga for nearly every one, that will help bring back some mobility, without doing further damage.
Check with your doctors.
Thanks for the encouragement :)
I too have arthritis . Both of my knees are bone-on-bone. I am watching my food intake and have lost 13 pounds in 4 weeks. Walking is painful but I am already noticing a difference. My mantra is "a day at a time". Positive thinking and the support of friends and family are keeping me on track. Stick with it and you will succeed.