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Date: Mon, 26 Feb 1996 10:33:43 -0800
From: iantdhq@ix*.ne*.co* (IANTD )
Subject: Re: Gas Consumption
To: "Eric Zimmerman (BIO)" <ezimmerm@ch*.ca*.us*.ed*>
Cc: techdiver@terra.net

Eric,
You just need to get more experience in a variety of locations so your 
comfort level remains the same.

Also incoporate the techniques I responded with earlier.
1. Use CV training combined with interval training while swimming, 
jogging, stairmasters or whateve PE you do. The trick is to maintain 
the discipline to maintain the save rate of breathing at the increased 
pace. You can bring in more volume and still keep a slow rate. The 
advantage is less work of breathing, reduced turblence in the airways 
and thus less gas consumed. The second advantage is that when 
respiration is not correct it will lead to stress the more one becomes 
stressed the more incorrectly they breath. So by breathing slow and 
deep thro the dighram you can reduce stress, get more efficient gas 
exchange, and net a better gas duration. this also causes you to 
develop discipline thus is helpful in overcomming stressful 
situtations.
Tom Mount

You wrote: 
>
>
>	I'm not happy with my cons. rate either, but I have noticed that
>	it is almost cut in half after a few dives in the same location
>	and/or constant (2,3, or 4 days) diving. This doesn't make a
>	difference if I am stage diving and picking or dropping bottles,
> 	or if I am just going on a quick dive with a group of other 
people
>	to a new location. My problem is not task loading; it is just
>	anxiety or nerves. I try to stay in shape, but I have been 
>	cursed by genetics to be a few pounds heavier than I should be.
>	Running and swimming seem to be the best thing for getting in 
	
>	shape for diving, the physique of runners and swimmers is usually
>	the best for less drag and less effort in propulsion. I am trying
>	to get in better shape now and have noticed that my cons. rate
>	is going down, but the fluctuation due to anxiety or nerves is 
more
>	of a determinant than cardio efficiency. Don't get me wrong, I'm
>	not spaz-I am just a little apprehensive about new sites.
>	Anybody else notice the change-dramatic or not?
>
>	
>> George, you have mentioned a few times that your gas consumption 
rate
>> is good.  (very impressive compared to the "dumb red-necks" who
>> learned their gear configuration from the Red Green show).  My
>> question is what do you (or anyone on the list) do to maintain this
>> efficiency.  I try to do some cardiovascular-intense activities.  
I'm
>> certainly not a couch-potato, but my gas cons. rate is still poor.
>> 
>> Comments?
>--
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