Kubik recommends Iron Shoes, like old-time lifters used, for doing ab work. Always curious to investigate new stuff (or old stuff, in this case), I ordered a pair. Anybody here worked out with these? What results did you get?
x2 Never heard of these, sounds interesting.
Actually, they are called Iron boots. Sorry for the typo
Here goes a link to a place selling them:
Here goes Brook Kubik’s recent article on ab routine (some of them using iron boots).