Posted by !Jones on September 6, 2010, 8:13 pm
On Wed, 1 Sep 2010 17:18:02 -0700 (PDT), in rec.bicycles.tech James
>Thinking about the Melbourne bicycle hire scheme and its lack of use,
>why not an inflatable helmet? Deflated to fit in your bag, and with a
>few breaths, a ready to go head wearable airbag.
>BTW, they're going to test a folding helmet made of thin plastic.
>Hmm. Can't see that one really doing the business, but anything's
>worth a try.
>JS
>(What was it Edison said? Something about finding 1000 ways not to
>make a light bulb?)
The motorcycle bunch has been doing that for years in areas with
mandatory helmet laws. Also, see faux seat belts.
I used to wear my helmet on my knee back in the '60s... the law said I
had to be wearing it, but it didn't say where. Cop gave me a ticket,
anyway, and made me put it on my head.
A mile down the road, I dropped the bike and busted my kneecap!
(I *swear* that's true!)
Jones
Posted by James on September 6, 2010, 8:32 pm
> The motorcycle bunch has been doing that for years in areas with
> mandatory helmet laws. Also, see faux seat belts.
> I used to wear my helmet on my knee back in the '60s... the law said I
> had to be wearing it, but it didn't say where. Cop gave me a ticket,
> anyway, and made me put it on my head.
> A mile down the road, I dropped the bike and busted my kneecap!
> (I *swear* that's true!)
> Jones
Wow! That's unusual. Frank seems to think helmets save knees.
Curiously not yours ;-)
JS.
Posted by Chalo on September 6, 2010, 10:55 pm
James wrote:
> !Jones wrote:
> >
> > I used to wear my helmet on my knee back in the '60s... the law said I
> > had to be wearing it, but it didn't say where. Cop gave me a ticket,
> > anyway, and made me put it on my head.
> >
> > A mile down the road, I dropped the bike and busted my kneecap!
> >
> > (I *swear* that's true!)
> Wow! That's unusual. Frank seems to think helmets save knees.
> Curiously not yours ;-)
According to what I have read, it's Thompson, Rivara, & Thompson who
believe helmets save knees. But Frank is quick to remind us of that,
just so we can admire what insightful researchers TR&T are.
Chalo
Posted by Frank Krygowski on September 6, 2010, 11:30 pm
> James wrote:
> > !Jones wrote:
> > > I used to wear my helmet on my knee back in the '60s... the law said I
> > > had to be wearing it, but it didn't say where. Cop gave me a ticket,
> > > anyway, and made me put it on my head.
> > > A mile down the road, I dropped the bike and busted my kneecap!
> > > (I *swear* that's true!)
> > Wow! That's unusual. Frank seems to think helmets save knees.
> > Curiously not yours ;-)
> According to what I have read, it's Thompson, Rivara, & Thompson who
> believe helmets save knees. But Frank is quick to remind us of that,
> just so we can admire what insightful researchers TR&T are.
More accurately: Thompson, Rivara and Thompson made no claim about
knees (or rather, leg injuries). They claimed their data and
calculations showed that helmets were so wonderful, they prevented 85%
of head injuries.
Dr. Dorothy Robinson asked for and was given their complete data set.
Her PhD and professional specialty is statistics. She used their same
data and calculation techniques to analyze leg injuries, and found
that their techniques also "proved" helmeted kids had about 75% fewer
leg injuries.
The claim that the helmets prevented leg injuries is tongue in cheek,
of course. Her real point is that the "cases" and "controls" in the
T&R study were so obviously different in so many ways that nothing of
value can be determined by their data. The study was totally
incompetent.
But that doesn't keep helmet promoters from quoting it's ridiculous
conclusion. Neither does a lack of corroboration in over 20 years.
- Frank Krygowski
Posted by !Jones on September 7, 2010, 12:06 am
On Mon, 6 Sep 2010 20:30:15 -0700 (PDT), in alt.war.vietnam Frank
>More accurately: Thompson, Rivara and Thompson made no claim about
>knees (or rather, leg injuries). They claimed their data and
>calculations showed that helmets were so wonderful, they prevented 85%
>of head injuries.
Well, anyone who claims that post facto data "prove" any causal
relationship will believe that roosters cause the sunrise.
There are good data that show correlation with helmet use and a
reduction in closed head injuries. This is why you can't rent a
bicycle without one... a helmet, I mean, not a closed head injury. An
insurance underwriter could GAF less whether you wear a helmet or a
feather in your jockey strap if it doesn't cut into the bottom line of
the risk. Underwriters aren't into an academic discussion.
Jones
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>why not an inflatable helmet? Deflated to fit in your bag, and with a
>few breaths, a ready to go head wearable airbag.
>BTW, they're going to test a folding helmet made of thin plastic.
>Hmm. Can't see that one really doing the business, but anything's
>worth a try.
>JS
>(What was it Edison said? Something about finding 1000 ways not to
>make a light bulb?)