Immersioni aprile in liguria

Ranablu ha scritto:
>> sufficiente per fare qualche immersione in aprile (quote intorno ai 20/25
>
> Per me no, morirei di freddo dopo 20 minuti ) Ma se tu non patisci
> particolarmente il freddo sicuramente sì, l'acqua sarà 13-14°
>

Idem con patate, anche se quando ero niubba ho fatto di peggio
Quelle temperature non sono proibitive con la umida, se l'immersione la
fai durare poco (30-40min), dopo ti fai una doccia calda e ti porti un
bel po' di vestiti pesanti per recuperare il calore.

Ciao
michela

MichiSub wrote:
> dopo ti fai una doccia calda

A tal proposito: mi pare di ricordare che fosse sconsigliabile fare una
doccia calda subito dopo un'immersione. C'è qualcuno che conferma o smentisce?

--
Flavio Visentin

Scientists have finally discovered what's wrong with the female brain:
On the left side, there is nothing right, and on the right side, there
is nothing left.

MichiSub wrote:
> dopo ti fai una doccia calda

A tal proposito: mi pare di ricordare che fosse sconsigliabile fare una
doccia calda subito dopo un'immersione. C'è qualcuno che conferma o smentisce?

--
Flavio Visentin

Scientists have finally discovered what's wrong with the female brain:
On the left side, there is nothing right, and on the right side, there
is nothing left.

MichiSub wrote:
> dopo ti fai una doccia calda

A tal proposito: mi pare di ricordare che fosse sconsigliabile fare una
doccia calda subito dopo un'immersione. C'è qualcuno che conferma o smentisce?

--
Flavio Visentin

Scientists have finally discovered what's wrong with the female brain:
On the left side, there is nothing right, and on the right side, there
is nothing left.

MichiSub wrote:
> dopo ti fai una doccia calda

A tal proposito: mi pare di ricordare che fosse sconsigliabile fare una
doccia calda subito dopo un'immersione. C'è qualcuno che conferma o smentisce?

--
Flavio Visentin

Scientists have finally discovered what's wrong with the female brain:
On the left side, there is nothing right, and on the right side, there
is nothing left.

MichiSub wrote:
> dopo ti fai una doccia calda

A tal proposito: mi pare di ricordare che fosse sconsigliabile fare una
doccia calda subito dopo un'immersione. C'è qualcuno che conferma o smentisce?

--
Flavio Visentin

Scientists have finally discovered what's wrong with the female brain:
On the left side, there is nothing right, and on the right side, there
is nothing left.

THe_ZiPMaN ha scritto:
> MichiSub wrote:
>> dopo ti fai una doccia calda
>
> A tal proposito: mi pare di ricordare che fosse sconsigliabile fare una
> doccia calda subito dopo un'immersione. C'è qualcuno che conferma o smentisce?
>

Sarebbero solo opinioni....

Da: THE EFFECT OF TEMPERATURE ON DECOMPRESSION
AND DECOMPRESSION SICKNESS RISK: A CRITICAL REVIEW

Charles B. Toner, MD
Robert Ball, MD

NMRC 2004-003 September 2004

"There are long-held beliefs regarding temperature effects on dive
outcome. One accepted tenet is that decompression sickness (DCS) risk
increases during exposures to cold water. It is also commonly held that
post-dive hot water showers encourage the onset of DCS."

- omissis -

"We also conducted a search for the effects of post-dive showering on
DCS incidence. In addition to the other literature databases, we
searched the NMRI decompression database, which contains military
research laboratory diving records of the United Kingdom, Canada and the
US, between 1945 and the present, to locate cases of DCS associated with
showering."

- omissis -

"No studies were found which specifically examined the effect of showers
on DCS risk, although one study reports a possible relationship through
a serendipitous observation. We also were apprised of a large human
study where post-dive showering was standard practice(Weathersby,
personal communication), and where the overall DCS incidence was
surprisingly low.55 In the NMRI database, we reviewed 393 DCS cases and
546 marginal cases. (Marginal cases are defined as cases which had
symptoms and signs thought to be decompression-related but that did not
require recompression treatment.) Of the cases reviewed, we found 5 DCS
cases and 1 marginal case in which the onset of DCS was associated with
showering. We incidentally noted two cases of DCS in which mild symptoms
improved after a hot bath."

- omissis -

There is no definitive evidence that hot showers after a dive
precipitate DCS. Hot showers suppress shivering, heat production,
increase evaporative heat loss, and provide little heat transfer and
thus do not effectively rewarm. It may be that hot showers adversely
affect peripheral blood flow and inert gas solubility as described
above, thus increasing DCS risk.
However, this has not been studied in the context of DCS. Besides
anecdotal reports, only the serendipitous finding in the study by
Mekjavic provides the kind of information required.
While their findings are suggestive of an association there are three
major limitations. First, the diagnosis of DCS was not made by
physicians blinded to the conditions of the dive. Second, all
of the cases responded to surface oxygen and were not felt to require
recompression treatment, bringing the diagnosis of DCS into question.
Third, the small numbers do not allow us to conclude with sufficient
probability that the events did not occur by chance alone.
Further Research Additional research could be conducted to strengthen
our confidence in a causal link.

Ciao
Ghigo

THe_ZiPMaN ha scritto:
> MichiSub wrote:
>> dopo ti fai una doccia calda
>
> A tal proposito: mi pare di ricordare che fosse sconsigliabile fare una
> doccia calda subito dopo un'immersione. C'è qualcuno che conferma o smentisce?
>

Sarebbero solo opinioni....

Da: THE EFFECT OF TEMPERATURE ON DECOMPRESSION
AND DECOMPRESSION SICKNESS RISK: A CRITICAL REVIEW

Charles B. Toner, MD
Robert Ball, MD

NMRC 2004-003 September 2004

"There are long-held beliefs regarding temperature effects on dive
outcome. One accepted tenet is that decompression sickness (DCS) risk
increases during exposures to cold water. It is also commonly held that
post-dive hot water showers encourage the onset of DCS."

- omissis -

"We also conducted a search for the effects of post-dive showering on
DCS incidence. In addition to the other literature databases, we
searched the NMRI decompression database, which contains military
research laboratory diving records of the United Kingdom, Canada and the
US, between 1945 and the present, to locate cases of DCS associated with
showering."

- omissis -

"No studies were found which specifically examined the effect of showers
on DCS risk, although one study reports a possible relationship through
a serendipitous observation. We also were apprised of a large human
study where post-dive showering was standard practice(Weathersby,
personal communication), and where the overall DCS incidence was
surprisingly low.55 In the NMRI database, we reviewed 393 DCS cases and
546 marginal cases. (Marginal cases are defined as cases which had
symptoms and signs thought to be decompression-related but that did not
require recompression treatment.) Of the cases reviewed, we found 5 DCS
cases and 1 marginal case in which the onset of DCS was associated with
showering. We incidentally noted two cases of DCS in which mild symptoms
improved after a hot bath."

- omissis -

There is no definitive evidence that hot showers after a dive
precipitate DCS. Hot showers suppress shivering, heat production,
increase evaporative heat loss, and provide little heat transfer and
thus do not effectively rewarm. It may be that hot showers adversely
affect peripheral blood flow and inert gas solubility as described
above, thus increasing DCS risk.
However, this has not been studied in the context of DCS. Besides
anecdotal reports, only the serendipitous finding in the study by
Mekjavic provides the kind of information required.
While their findings are suggestive of an association there are three
major limitations. First, the diagnosis of DCS was not made by
physicians blinded to the conditions of the dive. Second, all
of the cases responded to surface oxygen and were not felt to require
recompression treatment, bringing the diagnosis of DCS into question.
Third, the small numbers do not allow us to conclude with sufficient
probability that the events did not occur by chance alone.
Further Research Additional research could be conducted to strengthen
our confidence in a causal link.

Ciao
Ghigo

THe_ZiPMaN ha scritto:
> MichiSub wrote:
>> dopo ti fai una doccia calda
>
> A tal proposito: mi pare di ricordare che fosse sconsigliabile fare una
> doccia calda subito dopo un'immersione. C'è qualcuno che conferma o smentisce?
>

Sarebbero solo opinioni....

Da: THE EFFECT OF TEMPERATURE ON DECOMPRESSION
AND DECOMPRESSION SICKNESS RISK: A CRITICAL REVIEW

Charles B. Toner, MD
Robert Ball, MD

NMRC 2004-003 September 2004

"There are long-held beliefs regarding temperature effects on dive
outcome. One accepted tenet is that decompression sickness (DCS) risk
increases during exposures to cold water. It is also commonly held that
post-dive hot water showers encourage the onset of DCS."

- omissis -

"We also conducted a search for the effects of post-dive showering on
DCS incidence. In addition to the other literature databases, we
searched the NMRI decompression database, which contains military
research laboratory diving records of the United Kingdom, Canada and the
US, between 1945 and the present, to locate cases of DCS associated with
showering."

- omissis -

"No studies were found which specifically examined the effect of showers
on DCS risk, although one study reports a possible relationship through
a serendipitous observation. We also were apprised of a large human
study where post-dive showering was standard practice(Weathersby,
personal communication), and where the overall DCS incidence was
surprisingly low.55 In the NMRI database, we reviewed 393 DCS cases and
546 marginal cases. (Marginal cases are defined as cases which had
symptoms and signs thought to be decompression-related but that did not
require recompression treatment.) Of the cases reviewed, we found 5 DCS
cases and 1 marginal case in which the onset of DCS was associated with
showering. We incidentally noted two cases of DCS in which mild symptoms
improved after a hot bath."

- omissis -

There is no definitive evidence that hot showers after a dive
precipitate DCS. Hot showers suppress shivering, heat production,
increase evaporative heat loss, and provide little heat transfer and
thus do not effectively rewarm. It may be that hot showers adversely
affect peripheral blood flow and inert gas solubility as described
above, thus increasing DCS risk.
However, this has not been studied in the context of DCS. Besides
anecdotal reports, only the serendipitous finding in the study by
Mekjavic provides the kind of information required.
While their findings are suggestive of an association there are three
major limitations. First, the diagnosis of DCS was not made by
physicians blinded to the conditions of the dive. Second, all
of the cases responded to surface oxygen and were not felt to require
recompression treatment, bringing the diagnosis of DCS into question.
Third, the small numbers do not allow us to conclude with sufficient
probability that the events did not occur by chance alone.
Further Research Additional research could be conducted to strengthen
our confidence in a causal link.

Ciao
Ghigo

THe_ZiPMaN ha scritto:
> MichiSub wrote:
>> dopo ti fai una doccia calda
>
> A tal proposito: mi pare di ricordare che fosse sconsigliabile fare una
> doccia calda subito dopo un'immersione. C'è qualcuno che conferma o smentisce?
>

Sarebbero solo opinioni....

Da: THE EFFECT OF TEMPERATURE ON DECOMPRESSION
AND DECOMPRESSION SICKNESS RISK: A CRITICAL REVIEW

Charles B. Toner, MD
Robert Ball, MD

NMRC 2004-003 September 2004

"There are long-held beliefs regarding temperature effects on dive
outcome. One accepted tenet is that decompression sickness (DCS) risk
increases during exposures to cold water. It is also commonly held that
post-dive hot water showers encourage the onset of DCS."

- omissis -

"We also conducted a search for the effects of post-dive showering on
DCS incidence. In addition to the other literature databases, we
searched the NMRI decompression database, which contains military
research laboratory diving records of the United Kingdom, Canada and the
US, between 1945 and the present, to locate cases of DCS associated with
showering."

- omissis -

"No studies were found which specifically examined the effect of showers
on DCS risk, although one study reports a possible relationship through
a serendipitous observation. We also were apprised of a large human
study where post-dive showering was standard practice(Weathersby,
personal communication), and where the overall DCS incidence was
surprisingly low.55 In the NMRI database, we reviewed 393 DCS cases and
546 marginal cases. (Marginal cases are defined as cases which had
symptoms and signs thought to be decompression-related but that did not
require recompression treatment.) Of the cases reviewed, we found 5 DCS
cases and 1 marginal case in which the onset of DCS was associated with
showering. We incidentally noted two cases of DCS in which mild symptoms
improved after a hot bath."

- omissis -

There is no definitive evidence that hot showers after a dive
precipitate DCS. Hot showers suppress shivering, heat production,
increase evaporative heat loss, and provide little heat transfer and
thus do not effectively rewarm. It may be that hot showers adversely
affect peripheral blood flow and inert gas solubility as described
above, thus increasing DCS risk.
However, this has not been studied in the context of DCS. Besides
anecdotal reports, only the serendipitous finding in the study by
Mekjavic provides the kind of information required.
While their findings are suggestive of an association there are three
major limitations. First, the diagnosis of DCS was not made by
physicians blinded to the conditions of the dive. Second, all
of the cases responded to surface oxygen and were not felt to require
recompression treatment, bringing the diagnosis of DCS into question.
Third, the small numbers do not allow us to conclude with sufficient
probability that the events did not occur by chance alone.
Further Research Additional research could be conducted to strengthen
our confidence in a causal link.

Ciao
Ghigo