Another video which is mostly of me playing with tennis balls on my living room floor while cats walk around.
This method is for the relief of stiffness in the lower hinges of the back, using gravity to stretch the interior ligaments and flexor muscles, especially the iliopsoas, which are so far in there that even I can only find them on skinny people. Really, really skinny people, like endurance runners or my chain-smoking Japanese mechanic.
The behind-the-head placement is also good on its own for unraveling a stiff neck or jaw, even clearing stuffy ears, but since it directly affects pressures in the central nervous system, it can knock you so far out that you feel mickeyed. Don’t do it for long when you have to be alert.
This is my second try at making this clip. The first one had a vaguely crappy sound, or maybe I had been drinking too much Darjeeling.