Irish Football Contributes Data to Concussion Research
This year the Fighting Irish and three other Division One football programs participated in a concussion research study. 22 Irish players wore accelerometer- and gyroscope-equipped mouthguards that recorded the forces that football collisions exerted on the players' brains.
If this subject doesn't interest you as an Irish fan, it should. Both Dave Duerson's tragic death and Corwin Brown's recent standoff with police and subsequent domestic abuse arrest are thought to be related to concussion-induced mental illnesses like chronic traumatic encephalopathy, or "punch drunk syndrome."
Christoph Mack, president and CEO of the smart mouthguard designer X2Impact, says that the mouthguards' wireless transmitters confirmed for sideline analysts that the forces exerted on players' bodies by blocking and tackling are powerful indeed (from Blue and Gold Illustrated):
[A]verage collisions measured about 15-20 G's of acceleration, but major hits went as high as 100 G's. To put that in perspective, one G is the normal pull of the Earth's gravity on your body. When you accelerate rapidly the apparent force of gravity gets stronger. A jolting change of speed on a rollercoaster is about 5 G's, and a sharp turn in a fighter jet registers somewhere between 10-12 G's. A football player's brain accelerates as much as 10 times faster than that in the instant he makes contact with a menacing, oncoming linebacker. No wonder they see stars.
"Thankfully they last for just a few milliseconds at the acceleration level because if you tried to sustain 100 times your body's weight for any amount of time you would just crush it to jelly," Mack said.
The Irish medical staff is not yet using the mouthguard-generated force data to make medical or clinical diagnoses. The mouthguard study's current mandate is to collect data from unusually large hits. But Notre Dame Head Football Athletic Trainer Rob Hunt says that there is no clear correlation between the concussions and G-force (from South Bend Tribune):
"It's just another piece for us to give us some information to potentially screen concussive-type blows," said Hunt, a 1997 Ball State grad who is in his first season with the Irish. "Unfortunately, the data doesn't correlate to, 'When you get hit this hard, you're going to have a concussion.' There's no clear information that says, 'Every time someone gets hit at 50g's, we have to stop them from playing.'
"It's just not true. There are people who take blows over 100g's and have no concussive symptoms. That makes (evaluation) a little bit challenging."
While it is tragic that so many had to endure so much suffering before serious efforts at studying the physiological effects of football-related impacts and their resulting concussions, it is encouraging that Notre Dame and other universities are spending time and money to study sports concussions. Given what we now know about the frequency and severity of football-related collisions, however, I pose the question: would we want to subject our own sons to 5, 15, or 25 years of such punishment in playing high school, college, and/or pro football? And if we answer "no," then why do we allow ourselves to enjoy watching other people's sons do it? I don't know. I saw my own grandfather suffer the effects of dementia in his later years, and I'll never know how much of that was caused by his years playing football and baseball. But I do know that I'll be watching the Irish this fall and for every fall for the foreseeable future. I also know that I'll want my son to enjoy boxing and playing football as I did. You can't get a concussion sitting on your couch, but you also can't have much fun that way, either.
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Thanks to ND
for contributing to the brain trauma research with respect to football.
I appreciate MoS’s article on the Irish’s participation in this study. Just one thing to add is that while concussions can contribute to developing in later life the condition of Chronic Traumatic Encephalopathy (CTE), they are not the only cause.
So many of the ex-players who have been given a diagnosis of chronic traumatic encephalopathy (CTE) were linemen — line play lends itself to lots of little hits that traumatize the brain over time. People with CTE, Cantu says, "aren’t necessarily people with a high, recognized concussion history. But they are individuals who collided heads on every play—repetitively doing this, year after year, under levels that were tolerable for them to continue to play."
by Michael Collins on Jan 21, 2012 12:44 PM EST reply actions
thanks, MC.
I was inspired by your comprehensive article on concussions, which, by the way, puts this little blurb to shame.
by Mouth of the South on Jan 21, 2012 9:03 PM EST via iPhone app up reply actions
I will be very curious to see how this issue continues to change equipment and the game going forward.
While it is great that the issue has been highlighted I don’t see any way to “solve” this without significantly altering the way that the game is played.
whiskey
www.onefootdown.com
There are many great points made in that
What a lot of people don’t realize is that force of impact is not directly related to concussion risk (at least the data doesn’t show that yet). You’ll see plenty of players who get hit REALLY hard and not have concussion symptoms. And you’ll see plenty of others who didn’t even look like they got hit who come up with dizziness, blurred vision, headache…
Helmets do prevent the different type of brain hemorrhages. And mouthguards prevent tooth avulsions (but have not been shown to do anything for concussions though there are several groups out there trying to take advantage of concussion fears by marketing mouthguards for this).
But this is great that Notre Dame is involved in this. There’s so much we don’t know about concussions that every piece of data helps.
Thanks for posting this MotS.
what about the WISP mouth guard?
When we were boxing, they gave us WISP because they were supposed to be better against concussions? I did feel that they gave a lot more protection, because they stabilized the jaw when you bit down.
by Mouth of the South on Jan 21, 2012 8:57 PM EST via iPhone app up reply actions
To date mouthguards haven't been shown to help at all
Here’s a relatively recent article (2009) that analyzed all the studies available w/r/t helmets and mouthguards and their prevention of concussions: http://bjsportmed.com/content/43/Suppl_1/i56.abstract You can read the abstract which is where the meat is…
The problems are that mouthguards prevent forces on the teeth. But they do almost nothing to prevent direct blows to the head (you almost never get hit in the jaw playing football) and do absolutely nothing to prevent rotational forces (which are also important in contributing to concussions).
And as a Doctor, why say you?
Do you have reservations about your kids playing contact sports? And how common is CTE among the general public? I’m assuming that you greatly increase your chances of sustaining concussion-related medical problems each time you move to the next level.
by Mouth of the South on Jan 21, 2012 9:09 PM EST via iPhone app up reply actions
CTE is still very uncommon
There are only a handful of documented cases. The brains when autopsied look just like the brains of someone who has alzheimers. Lots of damage and protein deposits which likely are going on at a small level not necessarily related to whether or not you had a concussion.
I went to a conference last December where the forensic pathologist (Owalu) who did the dissections and analyses spoke to us about these findings. He suggested on his findings it takes about 3 months for the brain to fully recover from a concussion (from a pathology standpoint). Can you imagine holding someone out of football for 3 months after a concussion?
I personally would prefer my kid not box or kickbox for sure… I’m ok with football for now but that certainly could change depending on how all the research goes over the next several years…
If I could flip the script a little bit
I’ll be shocked if NHL players aren’t wearing full cages within 10 years to help fight against concussions.
Sky rockets in flight.
mouth of the south.....
Hi I am working on a device which will cut down significantly on helmut-to-helmut trauma.
I have had some amazing results.
I am willing to almost give it away, to help these guys.
Is there any contact info?
All I have is the company and CEO name in the article.
Maybe google them.
by Mouth of the South on Jan 22, 2012 12:18 AM EST via iPhone app up reply actions
Another area of research
involves soldiers who have suffered concussions from blasts and/or been diagnosed with PTSD. CTE has beeen diagnosed as the cause in one soldier.
"This is a sentinel case," Omalu said. "The brain findings in this deceased Army veteran are similar to the brain findings in the retired contact-sport athletes. Now, we need to look at more brains."
The case suggests that some veterans diagnosed with post-traumatic stress disorder, a psychological disorder, may actually have brain disease caused by concussions, he said.
by Michael Collins on Jan 22, 2012 3:57 PM EST reply actions
Point of reference on instantaneous g's
Single axis non-rotational instant g’s in an ejection seat reach about 30. This routinely leaves the pilot, even one in perfect position, 2-3 inches shorter, due to temporary spinal compression.
Add a multi axis rotation, with an abrupt snap at the end…and that sh** gets intense real fast.
Well hello there hangover. Fancy meeting you here this bright Thursday morning.
by Cranked_Irish on Jan 23, 2012 12:27 AM EST via mobile reply actions
I had heard that about ejections. I didn't realize that they wound up 2-3 inches shorter, though. I was thinking an inch or so.
Holy crap. How do you know this, cranked? Helos don’t have ejections seats, do they? How would that work?
by Mouth of the South on Jan 23, 2012 12:44 AM EST up reply actions
And old joke
How do SAR helo pilots see jet pilots….wet and scared. We pick ’em up outta the water.
I have 2 buddies who punched out of sick birds. I was on the flight deck when 1 of them was picked up. 5 hours later, after I landed, I visited him in sick bay. He told me he went from 5’7" prior to takeoff, per his last flight physical, to 5’4" after his initial check out.
He got better

Well hello there hangover. Fancy meeting you here this bright Thursday morning.
by Cranked_Irish on Jan 23, 2012 4:17 AM EST up reply actions 1 recs
Holy crap. I'm guessing he didn't really get better.
by Mouth of the South on Jan 23, 2012 2:20 PM EST up reply actions
He did, he was flying strikes about 5 days later
The shrinkage (and yes that was his new name) is the vertebrae compressing the disks. The bulge out, but recover quickly. At least in his case, they did.
Well hello there hangover. Fancy meeting you here this bright Thursday morning.
by Cranked_Irish on Jan 23, 2012 2:36 PM EST up reply actions
You also need to factor in that all pilots are built like Greeks gods
All that muscle makes for a faster recovery than an ordinary everyday mortal would experience.
Well hello there hangover. Fancy meeting you here this bright Thursday morning.
by Cranked_Irish on Jan 23, 2012 2:43 PM EST up reply actions
But what do they do in their free time?

Sky rockets in flight.
by Eric Murtaugh on Jan 23, 2012 2:57 PM EST up reply actions
These days I hear they mostly just hang out here.
whiskey
www.onefootdown.com
by whiskey OFD on Jan 23, 2012 3:20 PM EST via mobile up reply actions
I can confirm this as well.
whiskey
www.onefootdown.com
by whiskey OFD on Jan 23, 2012 3:19 PM EST via mobile up reply actions
Then please also tell us this:
Do all pilots have a natural, shiny sheen on their skin, or do they just grease up whenever they take their shirts off?
by Mouth of the South on Jan 23, 2012 4:24 PM EST up reply actions
I heard it is natural for the jet types.
For the helo drivers it is actually a combo of sweat & hydraulic fluid.
whiskey
www.onefootdown.com
by whiskey OFD on Jan 23, 2012 5:02 PM EST via mobile up reply actions
JP5, Hydraulic fluid,
and fear sweat. A helicopter is always trying to quickly decompose into its natural elements. Since she is a cruel mistress, she wants to take you with her. She is always trying to kill you.
Well hello there hangover. Fancy meeting you here this bright Thursday morning.
by Cranked_Irish on Jan 23, 2012 5:11 PM EST up reply actions

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