Benefits of long distance running for lumbar disc herniation.

Latest study to come out shows that 'long-distance runners and joggers showed better hydration and glycosaminoglycan levels (higher lumbar IVD T2-times13) than the non-athletic individuals.' What does this mean? Exercise (running) reduces swelling (disc herniation) in the intervertebral discs (IVD) and reduces degeneration in the lumbar discs.
For the full study: https://www.nature.com/articles/srep45975​​