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#188517 - 09/24/05 01:45 PM Injury tolerances for the Human Body
MattJ Offline
Free Rhinoplasty!
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Registered: 11/25/04
Posts: 15634
Loc: York PA. USA
From Bullshido :

http://www.bullshido.net/forums/showthread.php?t=5903

Here are some listings compiled by user BatRonin:

"There has been some talk lately of how tough ot how weak the human body is.
There have been studies done on this by the SAE ( Society of Automotive Engineers).
There have been also many studies done on how much force a boxer ( for example) can hit with.
The latest:
By King at Wayne University:
Boxers can hit with an average force of 765 lbs
so, let us take that as an example and see what the bosy can with stand:
Biomechanical injury tolerance levels:
Throat- 300 lbs of force
Frontal bone ( forehaed)- 1900 lbs
Back of head ( occiptal)- 2100 lbs
Temporal - 1400 lbs
Zygomatic-800 lbs
mandible - 800 lbs
maxilla - 500 lbs
Lat. Maxilla - 700 lbs
"nasal bone"- 200 lbs
Cervical vertebra - 500 lbs
Crown of head - 1350 lbs
area above the ear - 650 lbs
sternum with 4" defelction ( penetration) - 960 lbs
ribs - 400 lbs ( 1-3 ribs are the hardest, 4-9 the most common to fracture)
Draw you own conclusions"

"The study was done on amateures and pro's, not much of a diffrence in punching power, although alot of difference in terms of stamina ( makes sense).
As for the rating, force when applied to impact is measured as peak force of lbs or Newtons, it is not meaured per sq inch or such, that applies to pressure, not impact.
It can also be meaured in J or Joules, I t converted them all to lbs to make it easier.
The boxers weighed in at various weights of course, the hightest values found were those who had the best combination of size and speed.
I believe the highest was actually 1200lbs and the boxer weighed 180lbs.
As for where you canget this info:
Society of Automotive Engineers (SAE)
4 vol, about 300 us each.
Biomechanics of impact injury and injury tolerances."

"The values were taken by doing impact studies on cadavers.
The values usually used are from the cadavers the repesent 75% of the population, the values I took are from the 10% percentile study, males over 5-11 and over 200lbs.
They are the upper values taken, which means that in 100% of the cases when the force valued reach the amount stated, a fracture accured, a fracture that would be considered traumatic."

Quite interesting.
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"In case you ever wondered what it's like to be knocked out, it's like waking up from a nightmare only to discover it wasn't a dream." -Forrest Griffin

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#188518 - 09/24/05 03:01 PM Re: Injury tolerances for the Human Body [Re: MattJ]
Kintama Offline
Professional Poster

Registered: 04/17/05
Posts: 2724
Loc: Massachusetts
The figures sound right and in line with what I was saying in the other thread about this. The femur takes a load of 625 lbs before it breaks...so between 300-400 lbs for ribs sounds right.
Incidently, this is about the same that is required to break about 3 x 1" pine boards.

A pencil breaks at about 23 lbs.

correction: pressure is Newtons per square area. (the size of the striking area is very much a part of the equation.)

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#188519 - 09/24/05 03:18 PM Re: Injury tolerances for the Human Body [Re: Kintama]
Bushi_no_ki Offline
Veteran

Registered: 05/03/05
Posts: 1667
Loc: POM, Monterey CA
Interesting thought, do those numbers represent an average? Because the resistance to injury for someone who engages in high impact activity should be alot higher, due to the body's ability to adapt.

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#188520 - 09/24/05 04:21 PM Re: Injury tolerances for the Human Body [Re: MattJ]
MattJ Offline
Free Rhinoplasty!
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Registered: 11/25/04
Posts: 15634
Loc: York PA. USA
Quote:

sternum with 4" defelction ( penetration) - 960 lbs




OMG. 4" deflection? Uhhh.....wouldn't that have your sternum pretty much touching your spine?!

*squishing sounds*
_________________________
"In case you ever wondered what it's like to be knocked out, it's like waking up from a nightmare only to discover it wasn't a dream." -Forrest Griffin

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#188521 - 09/24/05 04:39 PM Re: Injury tolerances for the Human Body [Re: MattJ]
JoelM Offline
Professional Poster

Registered: 07/26/04
Posts: 6355
Loc: Georgia, USA
Quote:

Frontal bone ( forehaed)- 1900 lbs





Good thing, I just laid quite a bit onto mine. That forehead conditioning is starting to work I think.
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#188522 - 09/25/05 01:05 AM Re: Injury tolerances for the Human Body [Re: JoelM]
Mark Hill Offline
Veteran

Registered: 08/12/04
Posts: 1068
Loc: Australia
Like it matters, to make the head move while the brain remains inert to cause bruising or cause concussive shock, you don't need to hit hard at all.

Therefore any trained fighter, paticualrly a strong puncher is lethal without gloves. This is why fighting is not to be taken lightly.

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#188523 - 10/12/06 02:17 PM Re: Injury tolerances for the Human Body [Re: Mark Hill]
RazorFoot Offline
Professional Poster

Registered: 12/01/04
Posts: 2064
Loc: Seated at the computer, DUH
So now I know a jab from MattJ has at least 200 lbs. of pressure behind it.

*Touches sensitive part of nose, smiles, thanks MattJ mentally for making him a tougher person*
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"The greatest way to live with honor in this world is to be what we pretend to be."

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#188524 - 10/12/06 02:24 PM Re: Injury tolerances for the Human Body [Re: RazorFoot]
MattJ Offline
Free Rhinoplasty!
Prolific

Registered: 11/25/04
Posts: 15634
Loc: York PA. USA
Quote:

ribs - 400 lbs ( 1-3 ribs are the hardest, 4-9 the most common to fracture)




Right back atcha, bro.
_________________________
"In case you ever wondered what it's like to be knocked out, it's like waking up from a nightmare only to discover it wasn't a dream." -Forrest Griffin

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#188525 - 10/13/06 12:31 PM Re: Injury tolerances for the Human Body [Re: MattJ]
hedkikr Offline
Professional Poster

Registered: 02/28/05
Posts: 2827
Loc: Southern California, USA
Don't know how I missed this one (until now). Thanks for the info.

Now, does anyone know how someone could measure the impact (in lbs/in2) his punches/kicks produce?

Thanks

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#188526 - 10/13/06 01:26 PM Re: Injury tolerances for the Human Body [Re: hedkikr]
Leo_E_49 Offline
Professional Poster

Registered: 02/24/05
Posts: 4117
Loc: California
Get invited to participate in "Fight Science 2".
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(Website by Marc MacYoung, not me)

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