Hello @fumi, Welcome to Mayo Clinic Connect. I have idiopathic small fiber peripheral neuropathy and walking is a little difficult for me. I have an exercise bike that I use several times a day and I also try to do a little walking (emphasis on little for me due to back pain). I'm not sure exercise will slow down the progression but I think it helps you keep up your strength and flexibility so that you are able to keep moving. Balance is also another issue I have so I make sure I get up slowly and wait a few seconds before starting to walk. There are a couple of other discussions you might find helpful.

- Neuropathy & Exercise: https://connect.mayoclinic.org/discussion/neuropathy-exercise/
- Having trouble keeping your balance?: https://connect.mayoclinic.org/discussion/having-trouble-keeping-your-balance/

Do you enjoy walking?