I've been studying it for a while and finally bought one on the Home Shopping Network.
Wikipedia has a good article on Inversion Therapy.
And also some other good info.
It took me quite some time to get it out of the box and figure out how to put it together. I actually broke a sweat putting it together? Stress maybe?
Then I watched the video and figured out how to set it up for my height and level of use. Then used it for several minutes at a time before bed
Also....check out these YouTube Clips for more info!
This clip below has some really good info but it is quite long.