Not an engineer, but doing a small amount of exercise each morning to limber up and keep my core muscles from atrophying due to my sedentary lifestyle has done wonders.
That's awesome! When you say did wonders, how did your symptoms actually change?
I went from barely being able to get out of bed in the morning and having trouble staying on my feet for long periods to no pain or difficulty. I don't think I left it alone long enough to build up (much) permanent damage, so efficacy is probably less in more severe cases, but it was really shocking to me how much of a difference a little exercise makes.