text: ok everyone..i am looking to tighten my abs.  any exercises that would help? i must watch myself when i exercise, since i have rheumatoid arthritis. pilates is a great way to tone and strengthen the abs.  it is not just the in thing right now but has a lot of scientific basis.  the easiest way to learn is to go to a class a couple of times to learn the correct positions and modifications according to your ra so you can safely perform them.  don't start off with an exercise tape - i have had too many patients who tried to learn this way and ended up injuring themselves.  i am a physical therapist who incorporates pilates into my rehab as appropriate.  if you can find someone similar in your area, it would be well worth while.  they can then understand your disease better and advise you accordingly.  good luck!