What?
That is the test DR.s do for a hernia.
I don't think that is stupid to flipping a tire and it is all about challenge.
That's what are you did in your avatar? If so good job with 800 lbs tire.
For me, I wouldn't want do it due increase risk of hernia and some of my families do have hernia.
You sound like a politician now.I go to these bars.....but it's only to help women with their tuition.... And to stimulate the economy.
That tire in my avatar was my 620lb tire in my backyard that I practice/exercise with. I had two other smaller tires (470 and 380 lb tires) that I warm up with before hitting the biggest one. There are a few videos of me flipping that thing.