Whioch injuries are possible: A girl jumps on a guys stomach?

http://www.youtube.com/watch?v=c_1rdLl3-...

In this martial art demonstration 2 girls (about 110-130 pounds) jump on a guys stomach from a chair.

How can he take that?

Which injuries can occur?

Thanks

You can cause internal bleeding!!Or if you miss you can break a rib or even worse right below the chest in the middle of the rib cage is very sensitive bones that if it breaks will break in small pieces and can cause long term problems!!

It's called hard body trainning. Wolf's Law.

Martial artists who break cement blocks, bricks, and boards with their bare hands are all real. The trainning and impact gradually strengthens their muscles, especially their bones. According to Wolf's Law, the bones compress during impact, and become denser and stronger. If they train/prepare enough for it, there will be little to no injuries

*This also applies to muscular trainning (not Wolf's Law though).
Examples would be the "iron egg" technique practiced by shaolin monks - they drag 40 lbs iron rollers chained to their ***testicles*** and train their soft areas daily. They can thus withstand actual hangings (neck area), and blows to the private areas with wooden staffs.

Here are some sites:
http://en.wikipedia.org/wiki/Wolf%27s_la...
http://en.wikipedia.org/wiki/Breaking_%2...
http://www.youtube.com/results?search_qu...

good abdominal muscles and breathing technique helps defer injury

the girl could get a broken nose
from when the guy hits her after he recovers
and stops throwing up.

A girl migh fall off that chair and brake something.

As long as the chair doesn't roll back and she lands at a totally different place than stomach - the guy should be fine.

As some of the other answers say, hard-body training can allow you to take blows that would cripple or kill an untrained person.

But you ask what injuries could occur. Rupture of the intestines, appendix, bladder, stomach, or spleen, if he makes one little mistake.

That was how the famous Harry Houdini bought the farm, you may remember. He was boasting about how he could take any kind of blow to the stomach that a human fist could deliver. So one of his buddies punched him a good one -- withut warning him in advance. Since his muscles weren't tightened up, HH wasn't ready to resist; the blow ruptured his appendix and he was dead in a day or so.