BJ Penn is one of the best submission artists in the UFC. If you wonder how to do re
ar naked choke or what happen during rear naked choke - this is for you.
It only takes 5 LBS (5 pounds = 2,3 kilos) of force to choke someone out. That's less force than it take to brake an egg. But BJ can deliver 34 times more force than necessary - 163 lbs (74 kg.) And Fedor Emelianenko deliver 500 lbs (227 kg.) of force for 10 seconds. Thats like been squeezed by brown bear for 10 seconds. In MMA match the referee stops the bout the instance the fighter taps out or goes uncontentious. But if Fedor continue to choke with that force a real person, it could be deadly.
Although the brain is only 2% of the body's weight it utilizes 20% of the body's oxygen.
When the BJ Penn compress the carotid arteries of John Brenkus, the blood flow therefore the oxygen supply is reduced by 13% to his brain.
3 second in muscle activity increase double.
At 6 second John Brenkus vision starts to go. First color fades. Than black curtain closes in for his peripheral vision. This curtain is the last thing he will remember after the choke.
At 8 seconds interaction between 8,2 billions neurons in his frontal cortex has stopped. Halting his short term memory.
At 9 seconds he is out cold. His brain is in survival mode and powers down his entire body. His heart rate drops from 124 to 80. Respiratory rate drops by 55%. At this point electrical activity in his brain has been reduced by 65%.
After BJ Penn releases the choke, opponent's heart aggressively pumps to push oxygen rich blood back to his brain at 12 milliliters per second. And his brain reboots in only 3 seconds. And the only residual effect is the 5 seconds gap in his memory.
In the UFC 95% of the fighters tap out before loosing consciousness. And because of the rules in the octagon no one has ever been seriously injured because of a choke out.
BJ Penn: "I prefer to be choked out, than knocked out. No cuts. All your teeth are still in your mouth. You've got nothing to worry about.
Watch the video but remember - choking is dangerous, so don't do this at home. It's best left to the pro's.