My weight training gym just got this strange bed thing that flips you and holds you upside-down (I'm sure it has an actual name).
Stuff like that generally strikes me a BS, mostly because it's one of those things the people who don't lift/lift give pound dumbbells spend a lot of time on (at this gym).
However, I'm open to the idea that it might do something helpful for the spine, especially after dead-lifts or squats.
This thing hold you by your ankles, and flips you over:
1) Is this thing useful in any way.
2) If I want it to be useful how long, and how often might I want to hang upside-down?