I will add that I have suffered back pain on and off the bike for over 30 years due to herniated, degenerative discs and repetitive motion injuries. First dropping excess body weight helped. sorry for the Lance connection, but this simple program has changed how I walk, stand and most importantly reduced/ removed the pain I once had. It has been a great routine I practice regularly. I am stronger and more flexible. I bought the book on Amazon.
Back Pain Exercises & Back Pain Relief ? Foundation Training