Multisport, hockey, football and climbing helmets are not made to the same impact standards as they are made to take multiple smaller "hits", not one big hit.
Okay, maybe someone can explain this to me -- I'm with you on the football thing, but how can you say that hockey or climbing helmets are designed to take multiple smaller hits vs. one big one??
Hockey helmets are designed to protect someone's head as they get slammed hard to the ice, or better yet as the smash into the boards. Having experienced both, trust me, they're BIG ONES. Ice doesn't give AT ALL. Boards do a little if you hit the upper half, but if you hit the lower boards, they're don't give much at all. The speeds attained in ice hockey are just as fast if not faster than most cycling speeds. The fact of the matter is that hockey helmets are designed to withstand MULTIPLE SEVERE impacts on all areas of the helmet.
Climbing helmets are meant to save your life in a fall. That's NOT a serious of smaller hits -- it's the BIG ONE. It's designed to withstand maybe a series of smaller hits followed THEN by a severe impact! Granted, the likelhood of you not dying from other injuries on any fall great enough to produce speeds close to hockey or cycling is low.
The only difference between a cycling head impact and a hockey head impact is the possibility of the cycling impact to involve dragging along pavement. Although I'd wager that heads actually being dragged along pavements is more like a series of one hard hit followed by several small hits as the head bounces around -- the likelihood of sustained, constant friction is probably low in cycling. It's a little different on a motorcycle (I've been dragged along the pavement in a motorcycle accident) since speeds are much greater and a motorcycle is much heavier, resulting in a much greater distance to come to a stop.
If it is a instance of sustained friction, then that becomes an issue not of the type of foam (EFP or EPP), but one of the shell. I'll take my $90 CCM hockey shell any day over my $40 Bell shell!! The hockey shell is FAR more likely to withstand "dragging" whether it's tested for it or not, because it's thicker. And if the dragging is in fact one big hit, followed by a series of smaller hits, then the EPP in the hockey helmet is definitely a better bet!
Anyway, bottom line -- can anyone explain to me scientifically why a hockey helmet will not protect you better than a biking helmet in a biking accident?? If so, PLEASE do. I understand the issue of rating and liability -- that's not my question. I care about which is better.
Cheers,
Vaughn
This message was edited by SeaLawyer on 6-4-06 @ 10:23 AM