James Cracknell – Wear a Helmet Video.
bigjim – Member
Good stuff. Even TJ wears a helmet in real life you know! when appropriate.
However you actually need to look into this a little closer. Cracknell got a diffuse axonal injury – the type of injury associated with rotation of the brain which is the type of injury where any evidence for helemets reducing it is poor and there is some evidence helmets exacerbate diffuse axon injury
bicycle helmets and diffuse axon injuryPosted 6 years ago
Cracknell was hit from behind and reportedly fractured his skull at the back of his head. But his injury is actually in the front of his brain, because his brain shot forward when his helmeted head hit the road. He sustained a contrecoup injury to his frontal lobe, with bleeding and swelling. …..
Luckily for Cracknell he had just bought a new Alpina bike helmet, which is designed so that it fits low on the back of the head. That design helped Cracknell. Doctors said that the helmet, which split in two when Cracknell hit the ground, saved his life.Posted 6 years ago
I should have checked before posting. I did see it before I am sure but dunno what happened cos it ain’t out there now.
SBZ – its normally a mix if injuries but that bit druidh posts is clear that its mainly if not solely a contracoup in which case what I said does not applyPosted 6 years ago
It was worth a standing 8 count at most. But you did well to make him quit Druidh.
Contrcoup – denoting an injury, as to the brain, occurring at a site opposite to the point of impact. So – is the impact the mirror on the back of his head or from his head hitting the road?
Coup – denoting an injury, as to the brain, occurring at the point of impact. Or is it this one?
Diffuse Axonal Injury (DAI),
a type of brain injury caused by shearing forces that occur between different parts of the brain as a result of rotational acceleration. Pretty hard to get from being skelped hard on the back fo the head to headbutting the ground without a bit of rotation… Common site of injury – frontal lobe.
Helmet probably saved him from having bits of skull embedded in his brain, but it probably didnt help much with what was going on inside his skull.Posted 6 years ago
its a a contracoup from the description. the impact (coup) is the blow to the back of the head, the contra coup is when the head stops moving and the brain hits the inside of he skull. the helmet would have taken some of the energy in all probability
druidh – you want the full thousand post debate? I think on that one I proved be a great mass debaterPosted 6 years ago
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