# Could GSP really kick with 3477lbs force?

Discussion in 'Standup Technique' started by Str4wberry, Jan 13, 2015.

1. ### Str4wberryWhite Belt

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Alright, so I watched the above video the other day and it showed GSP being able to punch with 2859 (or something) pounds of force, and kick with 3477 pounds of force, which I found ridiculous.

Right, so, here's where the physics comes in.
3,477 lbs force is 15,466 in newtons.
I'd say it takes anywhere between 2500 - 4000 (between 560 & 900 lbs force) newtons force to break a rib.
In a car accident at 30mph, without a seatbelt, most people would slam into the dashboard with less than 3,477 pounds of force.

Let's say this guy can kick that hard and that Sport Science is right.
Surely this means that a properly executed kick in the midsection from GSP would break a rib, and since the force he can apply with his 15,466N kick is about 4 - 6.5x the amount required to break a rib, wouldn't this also cause much, much more damage than that?

Also I saw Cain Velasquez on sport science and his punch (according to them) lands less force than GSP's does, and Velasquez is a heavyweight.

2. ### PivotPunchRed Belt

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Sports Science is a ton of shit it has the scientific value of midget porn

3. ### Str4wberryWhite Belt

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THANK YOU. Finally someone understands.

4. ### a guyBlack Belt

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Yea I thought it was pretty well understood that sports science is a joke.

5. ### Steve08American Fedor Belt

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I heard it's actually 8000 Newtons to break a bone on average, but ribs are probably a little more fragile than say a femur.

But yeah, that show actually wants us to believe that GSP's average kicks will break a rib upon landing by default...

6. ### WillWBlue Belt

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The only episode I enjoyed was the one where that little clown got chocked out.

7. ### alphaomegamanGuest

lol...what...you can't be...well this is sherdog...

8. ### Steve08American Fedor Belt

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If one of the densest bones in the human body is easier to break than a rib, then I assure you, it's news to me. I'm not a surgeon. Either that or I misinterpreted your post, but needless to say, if I'm wrong then it would be appreciated if you could educate me by explaining why.

9. ### Fire of YouthGreen Belt

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Well I am a fan of midget porn...

10. ### TheFinerDetailsOrange Belt

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To be fair guys, this takes a raw number without any variables. There's much more to breaking someones bone than "my kick does *insert amount* and your rib breaks at *insert amount*".

11. ### alphaomegamanGuest

the mandible is the densest...in the human body...

12. ### Captain_DammittBrown Belt

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He's just saying the femur is tougher than a rib. Which it is.

I used to like the sports science stuff until they tried to say that GSP can punch harder than Cain, by a good amount iirc. Not only that but he left Rampage and Bas in the dust as well, again iirc. Maybe he can hit harder than them but I'm not so sure.

13. ### ariesGold Belt

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Hang on a minute. How are we measuring rib breakage? They have probably got a single rib bone held on a rigid stress fracture rig giving it no flex whatsoever. It's a totally artificial environment and not how your ribs are actually found on your body. First the impact is likely to be spread over several ribs and potentially over muscle and fat too. Second a human is a moving object i.e. you kick me I move backwards taking some of the steam off the shot. Third, the ribs are held together by elastic material that has some absorbing capability. Lastly the lungs act as a big cushion of air to protect the ribs.

Now have GSP kick a single rib which is held in place between two clamps, I'd imagine he'd smash through it no problem. But then I think most of us could accomplish this without much effort.

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