I took care of an MS patient in a wheelchair for about a year. We went to physical therapy twice a week where she used machines to strengthen her legs. She used small weights for her arms. And she was swimming by the time I left. (Had to come home to take care of Mom).
I have a spin bike at home. I have heard swimming is great for MS. I love to weight train with the machines. There is also yoga for MS Cds. I am looking into Prokarin. I'm on ldn now. 99 percent of MSers have gotten no worse on ldn (ldninfo.org), according to the book I read (Up the creek with a paddle).
Get the OK from your doctor first!!
http://www.msactivesource.com/ms-exercise-and-fitness.xml?utm_campaign=Health%2520and%2520Wellness&utm_source=google&utm_medium=cpc&utm_content=Exercise&utm_term=ms%2520exercise