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Thread: Helium and nitrox, same saturation rate?

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    RBW Member DRP-Sub is an unknown quantity at this point DRP-Sub's Avatar
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    Helium and nitrox, same saturation rate?

    Hello,
    I am looking for an article about a study carried out in 2015, in which the theory was defended that helium and nitrogen have the same saturation speed in the tissues. So I opened a new theory of decompression for ternary mixes in diving. Does anyone know what article I am talking about and where I can find it?
    Thank you.

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    RBW Member DennisA is an unknown quantity at this point DennisA's Avatar
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    Re: Helium and nitrox, same saturation rate?

    Perhaps this one
    http://archive.rubicon-foundation.or...23456789/10576

    And a comment by the "Theoretical Diver"
    http://euve10195.vserver.de/wp/?p=103

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    RBW Member DRP-Sub is an unknown quantity at this point DRP-Sub's Avatar
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    Re: Helium and nitrox, same saturation rate?

    Quote Originally Posted by DennisA  View Original Post
    Thank you very much!!!

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    RBW Member dreamdive has disabled reputation dreamdive's Avatar
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    Re: Helium and nitrox, same saturation rate?

    From TRERO.org Reference Library page 27:


    Doolette DJ, Upton RN, Grant C – Altering blood flow does not reveal differences between nitrogen


    and helium kinetics in brain or in skeletal miracle in sheep


    J Appl Physiology 2015; 118: 586-594

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    RBW Member beldridg is an unknown quantity at this point beldridg's Avatar
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    Re: Helium and nitrox, same saturation rate?

    This is also an interesting article that discusses results of a NEDU test along with the Doolette paper referenced:

    https://www.shearwater.com/monthly-b...elium-penalty/

    - brett

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    RBW Member Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P's Avatar
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    Re: Helium and nitrox, same saturation rate?

    Quote Originally Posted by dreamdive  View Original Post
    From TRERO.org Reference Library page 27:


    Doolette DJ, Upton RN, Grant C – Altering blood flow does not reveal differences between nitrogen


    and helium kinetics in brain or in skeletal miracle in sheep


    J Appl Physiology 2015; 118: 586-594
    Hi Claudia,

    would you mind to comment and share your opignion?
    Igor P

    Sent from my LG-K420 using Tapatalk

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    RBW Member dreamdive has disabled reputation dreamdive's Avatar
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    Re: Helium and nitrox, same saturation rate?

    Quote Originally Posted by Igor P  View Original Post
    Hi Claudia,

    would you mind to comment and share your opignion?
    Igor P

    Sent from my LG-K420 using Tapatalk
    We need more studies on this. There has been a discussion, I believe involving Simon Mitchell and Doolette discussing "helium penalties". There has been suggestions that UNLESS you conduct saturation diving, adding additional deco because you dive helium is not warranted. However, a counter-argument was made that perhaps the "correct" decompression approach in general should be as if you dive helium with "penalties" whether you dive helium or not.

    Therefore, we need more studies.

    C

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    RBW Member Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P's Avatar
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    Re: Helium and nitrox, same saturation rate?

    Quote Originally Posted by dreamdive  View Original Post
    We need more studies on this. There has been a discussion, I believe involving Simon Mitchell and Doolette discussing "helium penalties". There has been suggestions that UNLESS you conduct saturation diving, adding additional deco because you dive helium is not warranted. However, a counter-argument was made that perhaps the "correct" decompression approach in general should be as if you dive helium with "penalties" whether you dive helium or not.

    Therefore, we need more studies.

    C
    Thanks Claudia!

    Agree, more studyes and only than we can know if anything is to change or not....

    Best regards

    Igor P

    Sent from my LG-K420 using Tapatalk
    Last edited by Igor P; 18th May 2017 at 22:35.

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