Re: Helmets, adjustments...rt
This message is from: "coy...@acrec.com" ...I was sort of hoping that the "scalp must move" rule could be avoided... I could use high school physics (for example KE = 1/2*m*V^^2) to explain, but the bottom line is this: the closer your skull is to the compressive cushioning, the better. The helmet is designed as a one-time energy absorbing cushion between your skull and the ground. It absorbs as much energy from an impact as possible by distorting, crumpling, and breaking up. That means a helmet that fits snugly is better as long as it doesn't hurt. Your skull should contact the cushioning as quick as possible in an accident. The looser the fit, the less energy the helmet will absorb -- which means your head will absorb the energy instead, and the possibility of injury will be exponentially higher. That is why a good, trim fit is so important. It is also important to replace a helmet after an impact, however trivial. If the compressive layer is crushed, compressed, or cracked, the helmet will NOT function properly in a second impact. --DeeAnna Important FjordHorse List Links: Subscription Management: http://tinyurl.com/5msa7e FH-L Archives: http://tinyurl.com/rcepw Classified Ads: http://tinyurl.com/5b5g2f
RE: Helmets, adjustments...rt
This message is from: "plumg...@pon.net" I was sort of hoping that the "scalp must move" rule could be avoided if one had a helmet that came down over the back of the neck...like the Tipperary. My theory is the more encompassing shape of the Tipperary means the helmet stays in place better. The helmets that have moved my scalp have hurt and given me headaches. If the "scalp must move" rule is about not having any travel space for the head when head and helmet hit the ground (such that both hit at the same time) I can see that the rule would still apply. If it is about keeping the helmet in place...I would hope I could fudge a little in that realm? Gail I was told to check the fit by seeing if the helmet would slide off the head w/o the chin strap (it shouldn't) , or if the scalp moves with the helmet (it should). Hopefully someone who sells tack can elaborate... Important FjordHorse List Links: Subscription Management: http://tinyurl.com/5msa7e FH-L Archives: http://tinyurl.com/rcepw Classified Ads: http://tinyurl.com/5b5g2f
Helmets, adjustments...rt
This message is from: Eileen Perry I didn't see anyone mention helmet adjustments, so I thought I'd chime in here...Years ago, helmets were sold by hat size and at best you could add some foam inserts. The new sports helmets have an adjustable inside suspension harness to fit your head,usually with some type of dial or ratchet on the back. I was told to check the fit by seeing if the helmet would slide off the head w/o the chin strap (it shouldn't) , or if the scalp moves with the helmet (it should). Hopefully someone who sells tack can elaborate... Cheers from Oz, Eileen Important FjordHorse List Links: Subscription Management: http://tinyurl.com/5msa7e FH-L Archives: http://tinyurl.com/rcepw Classified Ads: http://tinyurl.com/5b5g2f
