Read that article a few days ago. Plain and simple...you are stronger when you take in "big air" and hold it...and push your stomach outwards...into your belt if you have one on.
joncrane. i deadlift sumo because i have more power that way, i deadlift in socks, just because it gets me that tiny bit lower to the ground that may make or break my lift. the belt appears so high because i angle it upwarsd in the front to make a snug fit, and also my upper abs come out a bit further than the rest, so when i take in a big breath it makes it tighter too
Thanks guys, don't know if I can handle the pressure of being any kind of inspiration.......j/k, I only posted these to back up my claims that belts and straps are not necessary.