>I should have added here that the sedentary or particulary overweight and 
>lower VO2 Max divers, while probably being just fine at the 50 foot and 40 
>foot stops (for the profile mentioned above), may be far safer in extending 
>their 30, 20, and particularly their 10 foot stops, beyond the table 
>predicted time periods for each stop depth. And this is an area (that is, 
>persons in the low VO2 max and/or heavily overweight area) where 
>individualized gas exchange correction could make many persons engaged in 
>technical diving considerably safer.

Sorry you missed my comment in the last posting (geez, we got a bunch of 
stuff bouncing around out there...hard to keep track)

I mentioned the relative increase in N2 solubilty in fat (some 5X 
compared to lean muscle mass) so that the overweight diver will simply 
have more N2 on-board to off-gas. That theory fits nicely with your 
comments since the degree of saturation should increase with depth (the 
sport divers being shallow shouldn't pick as much N2 for the same bottom 
time as the deep guys) and yes it seems to make sense to me for them to 
increase their stops beyond the tables since they have more gas to 
equilibrate and dissolve out of solution in the tissues.

It would be ideal to correct the tables for individual percentages of 
body fat (if only we knew how much?)

Robb Wolov

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