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>account for external conditions... If I dive 30 feet max depth, bottom time
>of one hour, one dive a day, one day diving, one day off, I would lay wagers
>that I will NEVER bend... Over, say, a 30 year span of diving that would be
>5400 exposures - certainly a large enough 'X'.
Well maybe you wouldn't, but maybe you would that's how probabilities work.
I notice you are prepared to lay a wager, further demonstrating your belief
that the DCI is a probabilistic process.
The hyperbaric unit here has treated DCI after dives to less than 10 metres.
One patient was doing their second dive ever. When I saw her (I am not a
physician but worked closely with the unit a few years ago) she was
paralysed down one side after a 30 minute dive to 8 metres (slow ascent, she
was under instruction). More recently we had an experienced diver who bent
after a dive to 6 metres (normal ascent, no particular decompression table
related reason for DCI).
Decompression schedules are an attempt to slow or prevent bubble formation
in the body after a hyperbaric exposure. DCI is a biochemical process
initiated by bubbles. Bubbles ALWAYS occur in the circualtion after a
hyperbaric exposure. None of those biochemical variables are taken into
account by any decompression schedule.
Have a nice day
/Rat
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shelps@ac*.ma*.ad*.ed*.au* Stephen Helps
Anaesthesia & Intensive Care
University of Adelaide
ADELAIDE, 5005, South Australia
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The human mind ordinarily operates at only ten percent of its capacity
The rest is overhead for the operating system.
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