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From: "Richard Hayward" <hddiver@ic*.ne*>
To: "Jason Weisacosky" <hypoxic@tr*.mi*.or*>
Cc: "techdiver" <techdiver@aquanaut.com>
Subject: Re: Physical Training- Before/After Extreme Exposures
Date: Mon, 1 Dec 1997 19:15:42 -0800
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I did some experimental diving for DCIEM (Defense and Civil Institue of
Environmental Medicine) in Toronto Canada.

The person I was diving with (in the wet pot of the chamber) had the bright
idea of lifting weights about 6 hours after the dive. Coincidentally the
dives were to examine the effect of work load at depth and exercise during
decompression, I think that they bent around 15% of the candidates that
volunteered however I could be wrong in that amount, but that is another
story.

His wrist started to hurt, he did not know if it was attributed to the work
out or the dive ( In which case it would be a type 1 hit pain only) So I
drove him back to DCIEM on 100% O2 just in case. The medic at DCIEM after
some tests and observations decided to treat him for a type 1 hit. Pagers
were ringing to get the support crew back to run the chamber (Right around
supper time)

Anyway once they get him to depth the pain does not subside, and the medic
determines that based on the history, that the pain is probably a result
from him working out. So he ended up wasting my time, the medics time and a
bunch of DCIEM staff's time because he could not wait a couple of days
before working out.

In Canada we have a pretty good health plan, but anywhere else in the world
I am sure that a chamber ride cost a lot of $$$$$$$.

Besides 98% of all DCS symptoms occure in the first 24 hours after a dive
and any diver who is asymptomatic for 48 hours then develops symptoms is
probably not suffering from DCS and You don't want workout pains to mask
symptoms of DCS.

It would probably be in your best interest to take it easy for a couple of
days, I've had it put to me this way,

"Your body is like a can of soda. Shake up a can of soda and open it (Rapid
Decompression), it is going to explode right. It's the same princicple as
absorbed gases in your tissues and decompression. Now soda in a glass is
still letting off bubbles right, it's not under pressure but bubbles are
still coming out, what happens if you stir it, it fizzes up and more bubbles
come out. The theory is, is that it is the same with your body."

I know it is a crude description but it gets the point accross.

For an actual medical description concerning this in medical terms contact
someone at DCIEM the link is below.

Rich.

-----Original Message-----
From: Jason Weisacosky <hypoxic@tr*.mi*.or*>
To: cavers@aq*.co* <cavers@aq*.co*>; techdiver@aquanaut.com
<techdiver@aquanaut.com>
Date: Sunday, November 30, 1997 3:34 PM
Subject: Physical Training- Before/After Extreme Exposures


>To any of the physiological 'heavy hitters':
>
>    I am curious of any recommendations regarding physical training
>before and after diving, in particular, extreme exposure diving.
>    To elaborate a bit, I am generally referring to extreme type
>exposures as diving  with bottom times requiring extensive
>decompression.  The dive(s) could be relatively shallow with very long
>BT *or*  very deep with long BT.  In any case, I am not as concerned
>with casual recreational exposures in relation to the following
>question.
>    Good physical fitness is crucial, I believe, for anyone diving
>beyond the 'standard' recreational realm (and is really preferrable
>regardless).  With respect to the above, I was wondering about physical
>training before and after diving.  It seems fairly prudent to deduce
>that training heavily on the same day of a dive would be less than
>desireable, but I am curious about the day before and the day after the
>dive.  Would it be safe to train aerobically(running, swimming, bike,
>etc) the day before and after a 'heavy' dive?  I am guessing this is
>o.k. as I've not had a real problem with this.  Where I am particularly
>concerned is in the anaerobic training area (weight lifting, sprinting,
>splitting logs, etc).  Can anyone give any insight on whether heavy
>training (aerobic or anaerobic) is unwise on the days before and after
>big dives?  Should these days be 'light' days?   Anyone?
>    Thanks for the time------Jason
>
>--
>Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
>Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
>

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[InternetShortcut]
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