For many years, chiropractic manipulation of the “snap-crackle-pop” variety saved me from back pain that more or less crippled me. I’d go into the chiropractor’s or osteopath’s office unable to take a full breath because of the pain, and would walk out of the office breathing normally, with a little residual soreness.
About 20 years ago I was having one of my periodic back pain episodes. Somehow I decided to fully inflate my lungs when I was lying on my back, then to hold my breath as I did a fast sit-up. That stretched my spine over my lungs. I felt something rip in my back, which hurt a bit, then came the usual snap-crackle-pop. Whatever that accomplished physically, it eliminated the main source of the pain instantly. I have had no serious back pain since.