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I get questions all of the time as to recommendations for improving
deco that others are not satisfied that they are doing advantageously.
Many times it is obvious as to wrong shape of the deco or wrong gas, but
lately it is less clear.
For my own account I have been more interseted than ever in
minimizing damage and maximizing my available workout time since I am
training for an Iron Man this fall - I can't have any down time from
training since I have to work three disciplines and workout twice per
day . My teammates have become more interested in marathons, bike
races, swim races, triathelons and in more conditioning, and have taken
the same attitide that I have taken, and that is we do not want diving
to get in the way of our training, even though diving was why we started
training in the first place.
You have seen the progression of our deco, and may have noticed that
we started incorporating helium into the deco gasses, and increasing the
amount of helium in the mixes. As we got higher and higher on the helium
percentage , the truth has become clearer and clearer - nitrogen is the
problem, and "trimix" as we knew it is basicly worthless.
Sure, I can walk away from most trimix dives, but I run away from
helium dives. We may have to revamp our entire structure on this issue.
Heliox may in fact be the correct gas for diving, and the answer to
deco, not anything more or less.
The Navy asked us about loss of vital capacity. We can measure that
on the track , in the pool, and on the speedometer in one word ;
nitrogen.
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