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George, JJ, and WKPP,
I sure do know well that you/JJ/WKPP use helium. Mean't to say in
earlier
email "not nitrox switches that George TEST CASE uses".
Sorry for the omit of TEST CASE.
Yup -- nobody on this planet knows more about helium benefits from the
deco and oxtox sides than you guys. Right on, and ride on.
Regards, as always.
Bruce
>Bruce, we are using helium-based mixes. I only specified the oxygen content
>in the example gas switches. Clearly, helium is a superior gas for avoiding
>DCS, and the more the better. I mentioned in one example that Bill Mee uses
>heliox all the way on these dives, and he has the fastest out time and the
>best result. JJ uses helium in all of his gases as well.
>
>Why is it that only you and the WKPP seem to understand this ( no answer
>needed)? The bullshit agencies teach "get off the helium as fast as you
>can".
>
>The fitness thing is an overall benefit - stamina, thermal, perfusion and
>distribution ( my hands don't get cold scootering for 7 hours , for
>example), and stress handling.
>
>Helium is a far better way to reduce decompression obligations on shallow
>dives as well. I just can not fathom the stupidity of jacking up the oxygen
>to supposedly reduce deco when the damage done and the risk of tox are so
>severe, and helium does the job so much better and makes the dive clearer
>and safer while being far easier to breathe, but then diving is mostly
>taught by morons and the agencies, with the exception of your NAUI TEC and
>GUE, are run by known idiots.
>
>-----Original Message-----
>From: Bruce R. Wienke [mailto:brw@la*.go*]
>Sent: Monday, March 11, 2002 8:13 PM
>To: Esat Atikkan; deco@de*.or*; techdiver@aquanaut.com
>Subject: Re: FYI: RGBM WKPP/Irvine Test Deco Profile Comparison
>
>
> Yes.
>
> Would be very interesting indeed -- this info needs folding into
> diving on the envelope. Especially considering the stress.
>
> We take Vits. exercise, and are in great shape here at/on
> LANL D-team, and will soon wet test 400/30 with He on way up (not
> nitrox switches that George uses). Our dives are almost 90% He
> these days -- we avoid N2 as much as possible. We are highly DCI absent
> on RGBM schedules. Bottom line -- deep stops are safe, cost effective,
> and time saving. Even if "arbitrarily" built up from Haldane.
>
> Can't accurately quantify such complex biochemistry, vascularity
> and related phenomenon, but such in coarse grain deco planners enter thru
>bub
> distribution, perfusion dilatation, etc., and possibly oxygen sat. If you
> have data linked to DCI, we might be able to say something?
>
>
> BW
>
>
>
>>has anyone looked at hematological & bichemical
>>parameters following these dives:
>>Crit, [Hb], plasma osmolarity, RBC fragility come to
>>mind as do plasma volume changes.
>>
>>This would B fertile ground to assess the oxidative
>>stress of such dives, wh/, over the long haul, may B
>>more significant than the putative bubble problems.
>>
>>I think Irvine & co deal w/ oxidative stress through
>>supplements of Vit E & C, wh/ would ameliorate the SOD
>>depletion, particularly the Cu/Zn SOD of the RBCs.
>>
>>However, the peroxinitrate relaxation mediated
>>comprimise of vascular endothelial integrity does come
>>to mind as an area needing study.
>>
>>If I recollect correctly this was studied & published
>>(Undersea Hyperbar Med in the late 90's does come to
>>mind). how it applies to the dives modelled here
>>would be of interest.
>>
>>Safe bubbles
>>
>>Esat Atikkan
>>
>>__________________________________________________
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>
>
>
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