Iyengar Yoga is excellent for your joints & recommended for Arthritis along with other joint ailments such as Lupos etc. Regular impact free Yoga can help lubricate your joints and reduce pain by encouraging synovial fluid into all the little crevices of your joints - read on to find out more, courtesy of 'My Yoga Online'.
http://www.myyogaonline.com/about-yoga/learn-about-yoga/yoga-for-arthritis-move-to-manage-your-pain