puke

http://www.ultracycling.com/nutrition/puke.html

"Raptor" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Seriously.

What causes puking during a hard workout? I've only experienced it a
couple times, on foot, when I sprint far into the red zone.

Assume strong conditioning, no unusual diet conditions or illness, just
pushing extremely hard. What's the chemical/physiological cause?

--
Lynn Wallace http://www.xmission.com/~lawall

If FDR fought fascism the way Bush fights terrorism, we'd all be
speaking German now.

Raptor said:

Seriously.

What causes puking during a hard workout? I've only experienced it a
couple times, on foot, when I sprint far into the red zone.

Assume strong conditioning, no unusual diet conditions or illness, just
pushing extremely hard. What's the chemical/physiological cause?

I always felt horrible (and sometimes would actually puke or dry heave)
after the 1st set of sprint intervals the first week of track practice.
After that day - it would not happen again - until the next year when
the whole process would start over. So, I always figured it was a lack
of conditioning. Body was just not used to going that hard.

Love the intervals.
--
Marty

In article <[email hidden]>,

Joe King said:

"Raptor" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Seriously.

What causes puking during a hard workout? I've only experienced it a
couple times, on foot, when I sprint far into the red zone.

Assume strong conditioning, no unusual diet conditions or illness, just
pushing extremely hard. What's the chemical/physiological cause?

Quoted message said:

http://www.ultracycling.com/nutrition/puke.html

Reading that article, it seems to say, in not quite so many words, "we
don't know."

It details the various not-very-exercise-related reasons why people
throw up, but I think there's an as-yet undetermined exercise-related
reason.

--
Ryan Cousineau [email hidden] http://www.wiredcola.com/
"I don't want kids who are thinking about going into mathematics
to think that they have to take drugs to succeed." -Paul Erdos

Ryan Cousineau said:

In article <[email hidden]>,

Joe King said:

"Raptor" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Seriously.

What causes puking during a hard workout? I've only experienced it a
couple times, on foot, when I sprint far into the red zone.

Assume strong conditioning, no unusual diet conditions or illness, just
pushing extremely hard. What's the chemical/physiological cause?

Quoted message said:

http://www.ultracycling.com/nutrition/puke.html

Reading that article, it seems to say, in not quite so many words, "we
don't know."

It details the various not-very-exercise-related reasons why people
throw up, but I think there's an as-yet undetermined exercise-related
reason.

You probably have had the urge to gag or puke just from -seeing- something
repulsive. So that tells me there's some brain center that can be
stimulated by visual phenomena to cause a reaction, and that this center is
probably sending impulses to the parasympathetic nervous system.

It's not too much of a stretch to imagine that hard effort and ragged
breathing could also either directly trigger the PNS, say as a 'reflex', or
it could trigger a brain center which then sends out a hormone which
triggers the PNS.

I've often wondered if this feeling of puking isn't the body's way of
trying to downregulate an effort that your system considers 'too hard' or
'harder than current experience' causing one to reduce the effort.

It's not too dissimilar to coughing which can occur after a hard effort, in
fact coughing can cause puking even without much of a feeling of nausea.

Notice how when you feel nausea coming on your salivary glands start to
work overtime? Well that's the PNS activating. So just as the inflammation
response can cause most of your 'cold or flu' symptoms, the PNS can cause
unnecessary symptoms, too, and one of them is puking.

Not sure this clarifies much...just pondering the issue.

Raptor said:

Seriously.

What causes puking during a hard workout? I've only experienced it a
couple times, on foot, when I sprint far into the red zone.

Assume strong conditioning, no unusual diet conditions or illness, just
pushing extremely hard. What's the chemical/physiological cause?

--
Lynn Wallace http://www.xmission.com/~lawall

If FDR fought fascism the way Bush fights terrorism, we'd all be
speaking German now.

I know this only an answer in the same way the Anthropic Principle is
an answer but... You puke after hard workouts because it is
evolutionarily beneficial to do so. Same reason you get nervous pee.
You get rid of everything that may be preventing you from fighting or
flighting to your best possible ability. if you can't just leave the
food sitting there and you can't spare the blood/energy to break it
down because of stress then it is best to just get rid of it.

Note I did no formal research in this response. I am sure there is a
physiological, hormonal, epi/lactic acid/ acidosis type feed back loop
going on there that I am to lazy to look up and thusly give you the
answer you really desire.

Ryan Cousineau said:

In article <[email hidden]>,

Joe King said:

http://www.ultracycling.com/nutrition/puke.html

Reading that article, it seems to say, in not quite so many words, "we
don't know."

It details the various not-very-exercise-related reasons why people
throw up, but I think there's an as-yet undetermined exercise-related
reason.

Hence the question! Miley and nobody offer plausible theories. I suggest
temporary lactic acidosis due to a flood of lactate from overworked muscles.

So, where do I go to to get the grant to do the study? And, the PhD in
exercise physiology to design, conduct and understand it?

--
Lynn Wallace http://www.xmission.com/~lawall

If FDR fought fascism the way Bush fights terrorism, we'd all be
speaking German now.

In article <[email hidden]>,

Raptor said:

Ryan Cousineau said:

In article <[email hidden]>,

Joe King said:

http://www.ultracycling.com/nutrition/puke.html

Reading that article, it seems to say, in not quite so many words, "we
don't know."

It details the various not-very-exercise-related reasons why people
throw up, but I think there's an as-yet undetermined exercise-related
reason.

Hence the question! Miley and nobody offer plausible theories. I suggest
temporary lactic acidosis due to a flood of lactate from overworked muscles.

So, where do I go to to get the grant to do the study? And, the PhD in
exercise physiology to design, conduct and understand it?

Dude, you do it, and I nominate you for an Ig Nobel.

But still...that would be a totally legitimate study!

"We devised a protocol for causing exercise-induced vomiting in the
subjects..."

--
Ryan Cousineau [email hidden] http://www.wiredcola.com/
"I don't want kids who are thinking about going into mathematics
to think that they have to take drugs to succeed." -Paul Erdos

Raptor said:

Hence the question! Miley and nobody offer plausible theories. I suggest
temporary lactic acidosis due to a flood of lactate from overworked muscles.

So, where do I go to to get the grant to do the study?

Perhaps the US DOD, the CIA or WADA might be interested.