I've never worn a bike helmet
I used to wear a helmet, but have stopped
I've always worn a helmet
I didn't wear a helmet, but now do
I sometimes wear a helmet depending on the conditions
WOW, I must be as dumb as a sack of rocks and ugly as... a sack of rocks...
He uses statistics as a drunken man uses lamp-posts...for support rather than illumination. I do like my beer, so sometimes I do end up leaning on the lamp-post...
In a crash there are two types of impacts.
1) Linear acceleration - the impact of the skull meeting an object. Bicycle helmets do an excellent job of attenuating this type of impact.
2) Rotational acceleration - the skull stopping short causes the brain to rotate. The technical term is inertial spin. Test have shown this to be the biggest single factor in a concussion's severity. Certified bicycle helmets are not tested for this type of impact.
And then the story goes on to mention research on woodpeckers and the reason they don't end up beating their brains to a pulp is because a straight-line strike doesn't damage the brain the way a strike following an arc.
Transitioning into testing by the National Institutes of Health found it impossible to concuss primates using strait linear acceleration. Meanwhile, every instance of rotational acceleration resulted in concussion.
So, yea, the author was talking about rotational acceleration's effect on concussion and not DAI's effect on TBI.
And while I'm now going to go back and re-read the story since my recall is lacking a bit, I will reiterate that all of you should pick up the June issue of Bicycling mag for this story alone. (I'm not huge fan of Bicycling, but this story is quite impressive.)
That's gonna leave a mark.
Thus the glove protects the puncher more then the punched, thus if your head is inside a helmet the helmet spreads out the damage to a wider area of the head instead of a localized area protecting the head more just as the glove protects the hand more.
I won't deny the aspect of hand injuries, but that was not what the discussion was about back then, at least not here. It was specifically about how the same force would be much more harmful if the fist was gloved.
This is not the first mag running a story questioning conventional wisdom (largely wrong/ill-informed) regarding helmets. Y'all bare-headers happier, now? There have been a couple of stories of this kind in print media -- the other one I remember was in Bicycle Times. Looks like you're having an impact.
Last edited by hagen2456; 05-02-13 at 01:17 AM.
People who don't want to be told to or not to wear a helmet probably shouldn't be reading this thread.
It's full of people saying do so or no need to do so.
When I was young we rode around on bikes every day for hours and hours on end riding wheelies and hitting sweet jumps. We rode in the streets, in the fields, in the grass, down the railroad tracks, and every place imaginable. There was never a helmet in sight and it wasn't even a consideration. There were plenty of gnarly crashes and lots of road rash but that was all just part of the payment for the endless joy that we got from riding. There was never a situation where a helmet would have prevented a injury.
I am sure there were kids out there who hit their heads on the ground but there were also kids out there that broke their arms or got hit by a car or busted their elbow / knee cap.
There is risk involved with everything that we do and I believe that individuals should have the right to manage their own personal risk. People should have the ability to decide how much of a risk they want to take. Requiring people to wear a helmet because "some people" feel that it's too dangerous to ride a bike without it is one step closer to deciding that people shouldn't be able to skydive, ski, motocross, or shoot guns because it just seems too dangerous to them.
Danger is relative and your willingness to expose yourself to it is a basic human right.
Having said all that My child, My wife, and I all have helmets. I don't wear mine for after work rides but I do strap that thing on when I decide to throw myself off the side of a mountain.
Yep. Still goin'.
The anti helmet crowd sure bring up a lot on useless points that have nothing to do with cycling. About the only thing they havent brought us is rock climbing. Oh------------no I guess they wouldnt because almost rock climbers use a helmet too!!!!!
Here's my helmet after my crash a couple of weeks ago.
2005 Specialized Roubaix Comp w/ 2012-13 SRAM Red Group Set
2002 Rocky Mountain Oxygen
1) That a helmet can be scratched up in an accident.
2) A helmet may prevent the scalp from being scratched up in an accident ( not as strongly as 1).
3) a hemet may prevent brain injury in a accident ( less likely that 2)
4) Your helmet prevented serious injury or death in this particular accident. (no demonstration or proof what so ever)
Recycle, Reclaim, Reuse and Repair
The 4 Rs to save the planet
"The bicycle is the noblest invention of mankind. I love the bicycle. I always have. I can think of no sincere, decent human being, male or female, young or old, saint or sinner, who can resist the bicycle."
- William Saroyan
I've got a bike, you can ride if you like it's got a basket, a bell that rings and things to make it look good- Pink Floyd, 1967