>In a message dated 98-03-06 09:31:12 EST, dlv@ga*.ne* writes:
>
><< I'm saying(  and the need to use the extremes in tech
> and caving are necessary to illustrate the point) someone like George with
a
> VO2 max value in the high 70 ml/kg of body weight, will be able to
circulate
> his entire volume of blood, perhaps 4 times through his body, in the same
> time unit the extremely fat and sedentary diver ( say with 10ml/kg VO2max)
> will pump his entire volume of blood one time. >>
>
>What about an extremely fat diver with a VO2 max of 70ml/kg, why must you
>equate fat with no conditioning, and a dangerously low VO2 max?

Kevin, this is part of the problem. What you have not yet understood is that
it is IMPOSSIBLE for
an extremely fat diver to have a VO2max of 70ml/kg .


>Also, how does all of this apply in the real world of deco? Not a 3 hour
>exposure at 300', but 25 minutes at 240'? 45 minutes at 130'?

George and Bill did 250 for 24 the other day, with a 45 minute deco. They
then went on to do a 30 minute dive at 140 after a surface interval of about
an hour.
They were perfectly fine afterwards. This is real world stuff. The obese
diver, who addititonally, has a poor cardiovascular system, would need over
two or three  times( or more) as much offgassing time  at the deep stops on
the first dive, and this would obligate them to much more deco on the
shallow stops, which they would have also greater need for more offgassing
time on, even ignorring the greater deco penalty they now have for their
much longer deep stop hangs.  And forget the heavy guys trying the second
dive. That would be pretzel time..


>
>I just feel weight has nothing to do with this discussion, however
>conditioning, smoking, asthma, and other physiologically limiting
conditions
>do. I know plenty of fit overweight people, and I know plenty of unfit thin
>people.
>
>Kevin

Kevin, I still think you will find, that when the research gets done, it
will indicate WKPP gets its track record of having no deco accidents
through fitness.

Regards,
Dan


>

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