Rico still dealing with concussion symptoms

[LocimusPrime]

sorry i was the big picture guy in the group. i knew how it went together, but did not design or build the devices.

Can you steal me one?

 

[Doc50]

Yea, I'm a security officer at the Citgo plant here in Corpus Christi. I'm an escort for hazardous trucks, brining them into the plant and to where they are taken over by an operator at each respective unit. I was on the hurricane ride out crew...and became a certified ERT member at age 66.

I'm planning on working until about 72 and hopefully, going back and get my Masters. Right now, I'm horizontally directed...not vertical in aspirations.

Good for you.

Gotta stay busy, or we’ll just decline.

I’m the same age — plan on working ‘til I’m 75.

 

[LocimusPrime]

Man, I think I had a concussion but wasn't sure. I was working out with 315 on incline bench, and when I went to rerack, the bar was a little slippery and rolled off my hand ( I usually use chalk if the bar is wet, old, or slippery etc). The sucker fell on my head and I started bleeding everywhere.

I went to the front desk, and I sprayed myself with some sorta antiseptic spray, and kept working out. It left a 4 inch cut in my head. Sux

 

[Doc50]

Man, I think I had a concussion but wasn't sure. I was working out with 315 on incline bench, and when I went to rerack, the bar was a little slippery and rolled off my hand ( I usually use chalk if the bar is wet, old, or slippery etc). The sucker fell on my head and I started bleeding everywhere.

I went to the front desk, and I sprayed myself with some sorta antiseptic spray, and kept working out. It left a 4 inch cut in my head. Sux

Did you have headaches, nausea, dizziness, visual disturbances, or other neurologic defects for at least a 12 hours? If so, concussion.

 

[xwalker]

yea, used to be involved in a project that developed microstructures that could survive high-g shock. spreading out the shock that happened from 1 millisec to 10 millisec did wonders for survivability.

mini-airbag arrays would probably require more than $3k per helmet.

$3K is a trivial amount for NFL teams.

 

[waldoputty]

Can you steal me one?

sorry loci. i had an accident in 2015 and the group dissolved a few months later...
we were not building helmets either.

 

[waldoputty]

$3K is a trivial amount for NFL teams.

3k is trivial for teams. a better designed flexible/collapsing cushioning helmet may cost something like that - at least that is my guess.

an active-protection system based on accelerometers would cost at least 10x more, and it is hard to say how much more you would get with active protection. something with a flexible shell that could spread the shock should make a big difference...

 

[xwalker]

yes the cushiony materials and the deformable outer shell would make a nice 1st cut using off-the-off advanced materials.

more esoteric stuff like shock wave cancellation (kind of like sound cancellation headsets) could employ piezomaterials to blunt the sharp impulse from an impact. softening the impulse could substantially reduce the g's of the impact.

this is just one example from various shock cancellation stuff out there.
http://www.google.sr/patents/US9153765?hl=nl&cl=zh

also perhaps the use of multilayer materials could also dampen the shock as the speed of sound is different in each material causing some reflection of a shock wave at each interface.

They could improve what they have now but there will be a limit. In a car there is more space and therefore more time. When a players head hits the ground his head is coming to an abrupt stop regardless of how high-tech the helmets become.

Obviously if his helmet stops in 1ms and they can spread it out such that his head has 10ms then that helps; however, based on how fast the helmet stops and the space in the helmet I think you could calculate a theoritical maximum benefit of a high-tech helmet.

 

[xwalker]

3k is trivial for teams. a better designed flexible/collapsing cushioning helmet may cost something like that - at least that is my guess.

an active-protection system based on accelerometers would cost at least 10x more, and it is hard to say how much more you would get with active protection. something with a flexible shell that could spread the shock should make a big difference...

Do you remember the player that had an outer shell that would pop off when he got hit really hard? It was a Bills WR. I think it was Andre Reed.

If the helmet can get bigger without adding weight, then they could do more.

Similar to what you mentioned before, when the players helment and head are travelling in one direction, the point at which the helmet/head first come to a stop in that direction is the key. How long from impact to initial stop or reversal of travel? In your example that time is 1ms for the helmet but 10ms for the head.

That difference should be much higher for a race car because there is much more space to work with. Having said that, race cars are travelling faster than football players.

 

[Pessimist_cowboy]

Devonte adams is playing tomorrow and this guy is still out!?

 

[TheHerd]

Devonte adams is playing tomorrow and this guy is still out!?

Hard to believe he really could pass any reasonable concussion protocol. Amy concussion should be at least a well off without some really outlier circumstance.

Seems like he's gaming the system after seeing this secondary. I really hope he stays away from any big hits.

 

[Doc50]

Hard to believe he really could pass any reasonable concussion protocol. Amy concussion should be at least a well off without some really outlier circumstance.

Seems like he's gaming the system after seeing this secondary. I really hope he stays away from any big hits.

You can’t game a neuro evaluation.
If deficits are present, they’re discernible.

 

[TheHerd]

You can’t game a neuro evaluation.
If deficits are present, they’re discernible.

Then they can't have a good evaluation or the policy is flawed. No way a guy who was unconscience should be playing professional football a week later.

 

[waldoputty]

They could improve what they have now but there will be a limit. In a car there is more space and therefore more time. When a players head hits the ground his head is coming to an abrupt stop regardless of how high-tech the helmets become.

Obviously if his helmet stops in 1ms and they can spread it out such that his head has 10ms then that helps; however, based on how fast the helmet stops and the space in the helmet I think you could calculate a theoritical maximum benefit of a high-tech helmet.

yes someone should be able to calculate a limit. i can see a helmet where you have a hard shell that collapses. i would think the shell would get an improvement with a multilayer stack of alternating films with different speed of sound (interface reflection). then you would have several flexible shells on top of each other to further spread out the shock impact. perhaps the outer shell would collapse with less amount of shock. and each shell underneath would collapse with an increment higher.

if you can indeed increase the impulse to a 10x longer impact period than period, i would suspect that is plenty for concussions. or players would all have horrible concussions all the time.

 

[DiResta]

Then they can't have a good evaluation or the policy is flawed. No way a guy who was unconscience should be playing professional football a week later.

isnt that incredibly dangerous and likely brain damage if another concussion?

 

[waldoputty]

Do you remember the player that had an outer shell that would pop off when he got hit really hard? It was a Bills WR. I think it was Andre Reed.

If the helmet can get bigger without adding weight, then they could do more.

Similar to what you mentioned before, when the players helment and head are travelling in one direction, the point at which the helmet/head first come to a stop in that direction is the key. How long from impact to initial stop or reversal of travel? In your example that time is 1ms for the helmet but 10ms for the head.

That difference should be much higher for a race car because there is much more space to work with. Having said that, race cars are travelling faster than football players.

race cars travel much faster but there are many more collapse zones available. furthermore, the driver head should be strapped in a way that it cannot travel that much. without the added momentum for the impact of the head.

our group actually made some silicon microstructures survive 100,000g compared to 10,000g simply by reducing the amount of travel gap from 10x or so. of course, reducing the gap by 10x is often not easy when dealing with microstructures. you are talking in microns.

 

[Doc50]

Then they can't have a good evaluation or the policy is flawed. No way a guy who was unconscience should be playing professional football a week later.

On what medical evidence or science is your opinion based?

 

[TheHerd]

On what medical evidence or science is your opinion based?

I have none, so I guess you're right, he's fine. It's perfectly OK to play a professional football game a week after getting knocked unconscious. He has no increased risk of further damage. Because theveryone NFL is always above board on this sort of matter.

Doctors and professionals are not immune to scandal or being influenced by big powerful organizations. There are still doctors and researchers trying to convince us cigarettes aren't the cause of lung. And the NFL itself is complicit in this area. I have personal experience with the problem in the NHL area.

This issue is actually very close to me for personal reasons. I just don't want to see him suffer the fate of far too many who gave blazed this trail in the past. I would always, always, always, opt for super conservative treatment in any case of concussion. I was not clamoring for Sean Lee to return anytime soon after his.

 

[waldoputty]

Do you remember the player that had an outer shell that would pop off when he got hit really hard? It was a Bills WR. I think it was Andre Reed.

If the helmet can get bigger without adding weight, then they could do more.

Similar to what you mentioned before, when the players helment and head are travelling in one direction, the point at which the helmet/head first come to a stop in that direction is the key. How long from impact to initial stop or reversal of travel? In your example that time is 1ms for the helmet but 10ms for the head.

That difference should be much higher for a race car because there is much more space to work with. Having said that, race cars are travelling faster than football players.

here is a simpler answer. if you can spread the mechanical shock reasonably evently from a 1 ms impact to a 10 ms impact, then you are likely reducing the damage by `10X. it is the high frequency components that do the most damage.

sounds like u r a mechanical guy. so picture the fourier spectrum. if you spread a 1 milli-sec square wave to a 10 milli-sec rounded waveform, you are getting a big win because amplitude is going way down.

 

[xwalker]

race cars travel much faster but there are many more collapse zones available. furthermore, the driver head should be strapped in a way that it cannot travel that much. without the added momentum for the impact of the head.

our group actually made some silicon microstructures survive 100,000g compared to 10,000g simply by reducing the amount of travel gap from 10x or so. of course, reducing the gap by 10x is often not easy when dealing with microstructures. you are talking in microns.

As I said, the racecar possibilities are almost endless but football helmets are much more limited.

The theoritical max damping is limited by the distance the head can travel after the helmet has stopped.