Freediving after a dive or deco dive physics question

[danvolker]

There's an old article titled something like "why the wkpp divers don't bounce after we dive" that reports divers getting bent going to 20 feet after a big dive to get deco bottles or to retrieve the anchor or something, but as mentioned, anecdotes are not solid cause-effect data (maybe they would have gotten bent anyway).

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The multi compartment off gassing going on for the hours following a dive at 280 feet for 5 or 6 hours at this depth, does not relate to the multi compartment off-gassing after a 100 foot dive for 30 minutes.

I have done 60 foot freediving in the hour after diving recreational profiles since the 70's....but would NOT consider this after doing 280 for even 25 minutes.

From the recreational dive, I think a diver that off-gasses well ( based on VO2 max and cardio-vascular potentials) can become clean of bubbles so well after 20 minutes of surface interval , that there is little to worry about in the freediving....but after the tech dive, the off-gassing from slow compartments will be creating to much bubble load for too long, to make this sensible.
*...I'd note this is my opinion, and I have it largely as a result of all the diving I did in the 90's with Bill Mee and George Irvine. As many of you know, Bill Mee worked with Dr Bill Hamilton in the 90's to create special deco tables for George Irvine and the WKPP. I got to inject ideas into this process, like VO2 max....
I see the current theories on deco as "theories and models"....and the newest and most accepted, hold no interest to me over what I gleaned from Bill and Bill

 

[grassgreen]

To put it a simple way, When you "duck dive" you go down to say around 5 or 6 metres, then go up to the surface fast, now would you go up at that same speed after finishing your safety stop on the said Scuba dive you just did? No. Why not???

Just because when you duck dive you have taken off your equipment, doesn't make any difference to what is happening to the dissolved nitrogen in your body amassed during the scuba dive.

Get it?