There is research to show that whole body vibration helps with lower back pain
https://pubmed.ncbi.nlm.nih.gov/31099...

There is also research that suggests that whole body vibration is bad for joints.
McCann, M. R., Patel, P., Pest, M. A., Ratneswaran, A., Lalli, G., Beaucage, K. L., ... & Barbalinardo, M. (2015). Repeated exposure to high‐frequency low‐amplitude vibration induces degeneration of murine intervertebral discs and knee joints. Arthritis & Rheumatology, 67(8), 21642175.

This research suggests that there is likely to be a short term improvement (due to decreased inflammation) but long term degeneration, if you keep using it, due to damage to joint tissue.

Yao, S., Sun, Z. T., Zhou, C. C., Yu, H., Luo, H., Pan, Z., ... & Hongfeng, R. U. A. N. (2020). Wholebody Vibration Attenuates PyroptosisMediated Inflammation but Accelerates Progression of Intervertebral Disc Degeneration.


Similarly, whole body vibration is a cause of lower back pain in people who drive large machines, by a similar mechanism degeneration of the disks.
   • Wholebody vibration: What can we do ...  

(But note, these drivers may experience 8 hours of vibration a day) 

So, I guess WBV can be a nice and invigorating shake up, which can reduce inflammation in lower back pain patients, but should be used with caution long term.