The Tracker features a magnetic backing that grips onto the back of a Teeter and seamlessly syncs via Bluetooth to your mobile device so you can easily see and record your inversion angle in real ...

"I use the Teeter Inversion Table as a standard part of my own therapy…and I prescribe them for patients routinely," said Dr. Donlin M. Long.

Amp up those sit ups with this smart contraption. (Photo: Teeter FitSpine) The inversion table is the brainchild of Roger Teeter, who created it in 1981 fueled by his own struggles with back pain.

Have you seen the infomercials on late night TV that show people head over heels on a Teeter Hang Ups inversion table? If so, you have probably wondered who actually uses them and ...