Every other day, or every day, during relapse or remission from IvIG, I push a 2 mile swim to the maximum. The first 20 laps are hell, the next 50+ are machine like. I started swimming before I was diagnosed with CIDP, when I was (60% of the time) in a relapsed state, over a two years period.
I can handle this amount of exercise; having a long history of doing well-regulated routines of weight-lifting, weight-walking and rest/recovery/hydration. I have kept myself out of a wheel-chair by doing intelligent exercise, moderate eating, taking vitamins&mineral, getting 7 hours sleep nightly and meditation. (although, I have a wheel-chair and seeing it scares me into daily exercise). Always hydrate!
CIDP:
http://neuromuscular.wustl.edu/antibody/pnimdem.html#cidpclin
CIDP is inflammatory nerve destruction and therefore muscle dysfunction. The voltage-potentials along the axon, that activate the muscles are in complex humeral soup, which have to be the right temperature, correct ph, balanced ions, insulated by myelin sheathing (which is made of lipids and ?) and many other thousands of chemical interactions, all in near-prefect harmony to work. We are designed to move and to me movement equals good health (or relative good health).
Finding a harmonious exercise routine, not taking it to the point of extreme fatigue, in my opinion, maintains a balance that may control a myriad or cascade of other complications and diseases that feast on our inflammations or contribute to them.
The inflammation of CIDP is not muscle related, not sore muscles, but are B-cell and T-cell related and how/when/where/why they respond to the genetic mutation ( ?) of our IgG antibodies.
http://en.wikipedia.org/wiki/Fc_receptor
My secret weapon: vegetable soup every night!