I'm a newby. I have had reactive arthritis since I was a teenager and I am now 60. I have been very fortunate to be able to control the progression of the disease over the years, but in the last year and a half it has gotten away from me. My signature lists my current challenges. I own 4 horses and riding has been one of my great pleasures. When done correctly, it is a low impact, great form of exercise and it has, until recently, generally made me feel better the more I am able to do it. In the past 6 month that has changed. I have been losing strength in my legs and my ability to stay down in the saddle is compromised. One of my Dr.s and my PT tell me I should not ride any more. I am to have an MRI in a week. Until then I am staying off the horses. What are the chances that I will be able to rehab. and come back and build strength again from my current situation? I feel unstable on a horse at the moment and like riding does impact my spine because I don't have the leg strength to do it well.