That’s a good article. I avoided the machine for months, as the gym staff trainer had told me to. But, after a knee flare, my PC, who is very sharp on body training, suggested it. He said keep the weight low, which I have. I started at 20, which is super low. It helped pretty quickly and I consider it the most important part of my workout. I recently had a family situation that kept me from the gym for about a week and i could feel it in my knee. As soon as I resumed, it calmed down. So…….for me, it’s worth the risk. I’ll keep the weight low, though.

Oh! Another thing that helped my knee. I lost almost 100 pounds with diet and exercise since the injury. So, there’s less stress on it.