My doctor wants me to exercise more, but I have arthritis and I need to find something that outs less strain on my joints.  My doctor suggested that I purchase an Elliptical Strider because it was designed with this in mind.  He says that I can still get a great workout, but it is not as stressful on my achy joints as other equipment is.  I took his advice and I purchased one.  I really love it and I have found that it does exactly what it says it will do and my joints are fine.  This was a great purchase and I use it everyday.