I have had osteoarthritis since I was 17 and after 40 years it has taken a toll on my joints. I have narrowing of the vertebrae in my lower sacrum and also in the middle of my spine. My knees, feet and hands have also been affected with pain and stiffness. I refuse to give up or give in without a fight so I've searched for quite some time to find the best exercises that will help me with strength and also provide aerobics while seated in a chair. There are 2 DVD's in the series called Stronger Seniors; Stretch & Strength. It's not just for seniors, but anybody who may not be able to stand for long periods of time. One DVD is all about strengthening your body and the other has aerobics, use of hand weights and toning/balancing exercises. I absolutely love it and have felt much better since I started practicing these exercises daily. I hope some of you that are experiencing stiffness will try this program. It was designed by Anne Pringle Burnell who is a certified fitness professional and are easy to follow. If you search on amazon.com click on DVD and then do a search for Anne Pringle Burnell and it's the first DVD on the list. Good luck and keep moving.