MUDr. David Bludovský

Neurosurgeon, Plzeň University Hospital, Czech Republic

"Floating-seat" chairs are a potential alternative to an exercise ball. Generally, the goal of these "unstable" seats is to enable activation of spinal muscles during long periods of sitting. I am currently not aware of any long-term study results. To those lookig to invest in such aids, I would recommend inspecting the product and trying it for yourself. You might also want to look for comments and user experiences online.

Source: uLékař