[efattah]

Originally Posted by dfriedman

Excellent info...to make sure I understand what hyperventilating is...they are short breaths in and out vice packing (mentioned above)?

Here are some more questions we were all wondering about...

4. I read somewhere that when your doing dynamic apnea (with or with out fins), if you blow a little air (CO2) out every 15 sec's, 30 sec's, or min (depends on how far your going), that it helps you stay longer and travel farther? Is that true?

5. Is there anything you can take that helps your lung capacity or increases your tolerance to CO2. Or are there any tools you can train with (i.e. expand-a-lung).


6. I've read some article that some divers try not to swallow during static or dynamic apnea training (Due to saliva). Why is that important--or is that just their preference?

Learning slowly...

FN

- Never blow air during breath-holds
- Lung expansion devices are pretty useless. Packing is the only method which really increases the amount of air, but you must do it very carefully and not to excess, otherwise you can suffer permanent injuries as well as black-out due to pressure on the arteries (generally I don't recommend it for day to day diving)
- Swallowing is fine, in fact it helps overcome the breathing reflex