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Date: Thu, 13 Jun 1996 15:14:06 +0100
From: jtaylor@cs*.co*.uk* (John Taylor)
To: <GarlooEnt@ao*.co*>, atikkan@ix*.ne*.co*
Subject: Safety Hangs (was Re: Report on a medical occurrence)
Cc: techdiver@terra.net
Do you have the complete reference for the study you mention (Andy Pilmanis). I
am really interested in the pros and cons of the so called 'precautionary
stops'. BSAC recommend a one minute safety stop at 6 metres (presumably only
for dives that are in some considerable excess of this depth). Given recent
posts by Richard Pyle suggesting deeper stops, should precautionary stops be
done deeper than this?

JT

On Jun 13, 12:17, <GarlooEnt@ao*.co*> wrote:
> Subject: Re: Report on a medical occurrence
> In a message dated 96-06-12 07:17:47 EDT, you write:
>
> >Subj:	Re: Report on a medical occurrence
> >Date:	96-06-12 07:17:47 EDT
> >From:	atikkan@ix*.ne*.co* (EE Atikkan)
> >To:	GarlooEnt@ao*.co*
> >
> >You wrote:
> >>

> >The word widely accepted may be hard to define here.  I know many many
> >divers & diving professionals who don't use either.  Thus widely
> >accepted is nothing but a nebulous adjective butressing the favorite
> >algorithims of a given segment of the diving community.
> >
> > (how about Canadian or British) i think
> >>you will find that in all of these(just a guess on my part since i
> >didn't
> >>work them out) she should have spent more time "SAFETY" hanging.
>
>
> >Safety hang is jut that.  A 3-5 non required stop @ 10-15 ft.  A legacy
> >of Andy Pilmanis who in one series of studies showed reduced Doppler
> >bubbles (precordial) in those that did a stop compared to those that
> >did not following the identical dive profile.  The results may be
> >significantly different today with the new slower ascent rates.
>

-- 
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John Taylor <jtaylor@cs*.co*.uk*>
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Credit Suisse Financial Products, 1 Cabot Square, London E14 4QJ.
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"After diving, all else is surface interval"

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But scientists, who ought to know
Assure us that it must be so.
Oh, let us never, never doubt
What nobody is sure about.
		-- Hilaire Belloc

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