WhiteSands
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Is it VPM? Thanks.
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According to my rec 3 materials, the tables are cut using 20/85 GF using GUE's decoplanner. I can't comment on anything besides rec 3 however.
GUE teaches ratio-deco. Ratio deco isn't a model, it's a method for on-the-fly determination of deco needs that fits the results of several models.
R..
Ratio deco is just a simple tool that describes patterns outputted by the deco algorithm of your choice. It works fairly well for 20-30min bottom times, but breaks down much past that and ends up being really aggressive.
For instance, at x depth with y gases, there might be a 1:1ratio between bottom time and deco time. At another depth with different gases, it might be 1:2.
Ratio deco is not taught as a stand alone thing. Its just a trick to help adjust your deco if the plan is say a little deeper or shallower, or a little longer or shorter, or a combo of those conditions. It's handy.
Hi Rivers,
Thanks for the feedback. I assume GF refers to Gradient Factors by Erik Baker?
I would like to learn how do the different algos like RGBM, VPM and GF compare to each other in real world use. Is there a good resource where I can read up more on this?
Deco planner has buhlmann and vpm algorithms. You can toggle back and forth and compare the two.
---------- Post added May 26th, 2014 at 09:09 PM ----------
Ratio deco is just a simple tool that describes patterns outputted by the deco algorithm of your choice. It works fairly well for 20-30min bottom times, but breaks down much past that and ends up being really aggressive.
For instance, at x depth with y gases, there might be a 1:1ratio between bottom time and deco time. At another depth with different gases, it might be 1:2.
Ratio deco is not taught as a stand alone thing. Its
just a trick to help adjust your deco if the plan is say a little deeper or shallower, or a little longer or shorter, or a combo of those conditions. It's handy.
Pure Buhlmann is a dissolved gas model . . . it assumes that all gas is dissolved, and diffusing back and forth from the compartments to the blood and lungs, and into the exhaled air. Pure dissolved gas models tend to push you very shallow very fast, and then hold you there for a long time while you offgas. However, we know from Doppler studies that not all gas is dissolved. Gas will form bubbles if the ambient pressure drops enough, and bubbles have fairly different dynamics in terms of exchange their contents with the dissolved gases in the blood surrounding them.