research has shown that moderate physical activity on a regular basis can help keep joints flexible longer as well as increase muscle strength and improve overall heart and lung health. at the same time when a joint is inflamed -- warm painful and swollen -- rest will help reduce the inflammation. talk to your doctor about which range of motion exercises should still be performed during this time to help preserve joint mobility. once your "flare" recedes you should gradually resume a full exercise program as prescribed by your doctor.
should i be exercising if i have rheumatoid arthritis or just taking it easy most of the time?