I remember when my chiropractor friend, Dr. Nick Athens of San Carlos, CA was treating Joe Montana of the San Francisco 49rs. He was also treating (and still does) a good portion of the rest of the team. According to Joe, the chiropractic care allowed him to play at a much higher level. Yes, Joe Montana still had to have back surgery, but as far as I know he continues to have regular chiropractic adjustments, as does his entire family.
It's unbelievable what professional football players put their spines through. It's amazing they are able to handle it as well as they do. I'm know most of them have personal trainers and chiropractors that they work with on a regular basis. This helps them deal with all the abuse the spine and discs take every Sunday during the NFL season. And I think we would all agree, this can be brutal.
In addition, many professional athletes, as well as regular folks who are " in the know", are turning to nonsurgical spinal decompression on the DRX9000 for herniated and degenerated disc treatment and regeneration
Anyway, I came across a real interesting study done by some sports medicine doctors that really breaks down low back pain and intervertebral disc injuries . It correlates MRI findings with specific causations and symptoms. It has an emphasis on sports injuries. It's a little technical, but good reading.