First and foremost there is no “scientific” evidence of actual medical effectiveness with the product, however there has been recent and popular observational data to suggest that this modality and product may help. The said product is the GyroStim;
The GyroStim™ is a fully automated, computer-controlled multi-axis rotating chair. Its spacious design is comfortable and safe, and can accommodate many types of individuals ranging from small children to elite athletes to those with significant disabilities.
I bet any sports fan out there has seen it, it was highlighted in the recovery of Sidney Crosby and most recently another NHL star Guillaume Latendresse of the Minnesota Wild. The thought process is that when a concussion occurs one of the systems affected is the vestibular. For the layman the vestibular system is responsible for our awareness in space using very fine and specific equipment in the inner ear. Imagine when you were younger and had just gotten out of a pool from swimming and had water in your ears, then you decided to shake your head or run real fast and found yourself “a bit off”. This is similar in nature with a concussion, the violent forces to the head can create a disruption of this system, some times even moving crystals around. Many think this is the primary reason for unsteadiness and balance disturbance after the brain injury.
Maybe it is just snake-oil they are selling here, or it is another tool for the rehabilitation team for those suffering the lingering effects of a concussion. Certainly this training can benefit the vestibular system, the only issue I see here is cost, just because there is no scientific backing at this time. Regardless it is worth a looking into.