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Old February 19th, 2007
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Re: Why did I black out?

Quote:
Originally Posted by trux View Post
I do not really agree with it. Most of our wet static apnea training sessions (1hr) consist of two different tables, combined with other exercises, and as far as I know many other freediving clubs in France use to practice it in similar way.
Trux, I see you are a lot more experienced in this, so I will trust you on this one. What I stated was more theoretical as I did read it from many sources, also got this info on a freediving course. Maybe it is just not suited for beginners?

But back to the original question - why that blackout occured? I just started thinking more deeply about that. It might be interesting to discuss about what happens when you do CO2 and O2 tables one after another. These are my thoughts on that:

After the first table (CO2) the CO2 level in the lungs should be on a quite high level. But the blackout you described, as I understood it, came very suddenly. This suggests that your CO2 was on a very low level during the second table (causing no contractions). Only thing that comes to my mind is that it was due to hyperventilation in the 5 minutes between the tables. I guess no packing was involved as you are just starting out.

So Mr Clauds, could you give us some more info on this? Did you get contractions before the BO? How did you breathe between the tables? Did you maybe do some packing before the last breathold?
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