Anerobic vs. aerobic

On Tue, 20 Apr 2004 00:33:15 GMT, Marshall <[email hidden]>

Quoted message said:

Can anyone explain why I would be told that you can not
loose weight doing anerobic exercise? Does aerobic burn fat
while anerobic does not burn fat?

IT matters not. One process converts sugar into water and
CO2 (aerobic), if you cannot produce enough energy that way,
then some sugars are converted to lactic acid. At a later
time the Lactic acid is either converted back to sugar, or
burned the rest of the way (Krebb's Cycle IIRC).

Either one is going to convert fat to sugar if there isn't
enough sugar available.

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

Quoted message said:

Can anyone explain why I would be told that you can not
loose weight doing anerobic exercise? Does aerobic burn
fat while anerobic does not burn fat?

Maybe you should ask the person who told you this. I do
mainly anaerobic exercise (weights) and am losing weight. I
am building muscle and the more muscle you have, the more
calories you burn.

--
Type 2 users.bestweb.net~jboveOpen ↗

Marshall said:

Can anyone explain why I would be told that you can not
loose weight doing anerobic exercise? Does aerobic burn
fat while anerobic does not burn fat?

non-sense....who told you this [censored] ?

Basically...the difference is that aerobic exercise requires
Oxygen, the other doesn't...either will burn whatever fuel
is available. Typically the body burns fuel preferentially,
stored glucose first. Fat is burned when stored glucose is
depleted and there's nonnew coming in.

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

Quoted message said:

Marshall said:

Can anyone explain why I would be told that you can not
loose weight doing anerobic exercise? Does aerobic burn
fat while anerobic does not burn fat?

IT matters not. One process converts sugar into water and
CO2 (aerobic), if you cannot produce enough energy that
way, then some sugars are converted to lactic acid. At a
later time the Lactic acid is either converted back to
sugar, or burned the rest of the way (Krebb's Cycle IIRC).

Either one is going to convert fat to sugar if there isn't
enough sugar available.

Ummm, not exactly.

It matters a great deal in that aerobic metabolism directly
"burns" free fatty acids [which are liberated from the fat
stored throughout your body], while anaerobic metabolism
burns only glusoce(/glycogen). Both aerobic and anaerobic
metabolism burn their fuels down to the pyruvic acid stage,
but to proceed with the Krebs cycle you need [drumroll]
oxygen. So, in answer to the OP, yes, the aerobic system
burns fat (free fatty acids) while the anaerobic system
burns glucose (i.e., doesn't burn fat).

Bill
--
Bill Peckenpaugh
[email hidden]
plimu.combill.htmOpen ↗ (Boring me...)
plimu.comdaniel.htmOpen ↗ (The Amazing Daniel!)

"Julie Bove" <[email hidden]> wrote in
:"]news:[email hidden]:

Quoted message said:

Maybe you should ask the person who told you this. I do
mainly anaerobic exercise (weights) and am losing weight.
I am building muscle and the more muscle you have, the
more calories you burn.

Exactly. For balance doing both is good, but
anaerobic exercises build strength and stamina,
always good.

"gman99" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Marshall said:

Can anyone explain why I would be told that you can not
loose weight doing anerobic exercise? Does aerobic burn
fat while anerobic does not burn fat?

non-sense....who told you this [censored] ?

Basically...the difference is that aerobic exercise
requires Oxygen, the other doesn't...

That much is correct.

Quoted message said:

either will burn whatever fuel is available. Typically the
body burns fuel preferentially, stored glucose first. Fat
is burned when stored glucose is depleted and there's
nonnew coming in.

And that is incorrect.

The aerobic metabolic pathway burns fatty acids. Period. The
anaerobic metabolic pathway burns glucose. Period. Both
metabolize their respective fuels to pyruvic acid, at which
point the PA enters the Krebs cycle (if there's oxygen
available) to be further metabolized. *Cells* can switch
from one fuel to another, depending on whether one running
out (like a marathon runner "hitting the wall" when glycogen
stores are exhausted: the runner doesn't simply collapse,
because free fatty acids continue to be metabolized
aerobically).

You certainly can lose weight doing only nonaerobic
exercise, but you will generally lose weight faster (and you
will deplete fat stores directly) by doing aerobic exercise.
Anaerobic exercise is good for toning muscle and building
strength, but is isn't good for quickly losing fat.

Bill
--
Bill Peckenpaugh
[email hidden]
plimu.combill.htmOpen ↗ (Boring me...)
plimu.comdaniel.htmOpen ↗ (The Amazing Daniel!)

Quoted message said:

It matters a great deal in that aerobic metabolism
directly "burns" free fatty acids [which are liberated
from the fat stored throughout your body], while anaerobic
metabolism burns only glusoce(/glycogen). Both aerobic and
anaerobic metabolism burn their fuels down to the pyruvic
acid stage, but to proceed with the Krebs cycle you need
[drumroll] oxygen. So, in answer to the OP, yes, the
aerobic system burns fat (free fatty acids) while the
anaerobic system burns glucose (i.e., doesn't burn fat).

Not telling the whole story...aerobic exercie will still
burn glucose. If combined with low calories they will both
burn fat too.

"gman99" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Quoted message said:

It matters a great deal in that aerobic metabolism
directly "burns" free fatty acids [which are liberated
from the fat stored throughout your body], while
anaerobic metabolism burns only glusoce(/glycogen). Both
aerobic and anaerobic metabolism burn their fuels down
to the pyruvic acid stage, but to proceed with the Krebs
cycle you need [drumroll] oxygen. So, in answer to the
OP, yes, the aerobic system burns fat (free fatty acids)
while the anaerobic system burns glucose (i.e., doesn't

burn

Quoted message said:

Quoted message said:

fat).

Not telling the whole story...aerobic exercie will still
burn glucose. If combined with low calories they will both
burn fat too.

You are confusing "aerobic exercise" with aerobic
metabolism. Aerobic exercise promotes optimal aerobic
metabolism, but it's entirely possible to do "aerobics" so
hard that you slip into anaerobic metabolism, or so
apathetically that you remain below optimal aerobic
metabolism.

Aerobic respiration directly metabolizes free fatty acids.
Anaerobic respiration metabolizes glucose. Most exercise
results in muscle cells using both metabolic pathways, since
you can't usually hit the "sweet spot" of maximum aerobic
respiration without either becoming out of breath (and
losing optimal aerobic respiration), or exercising at sub-
aerobic levels.

Bill
--
Bill Peckenpaugh
[email hidden]
plimu.combill.htmOpen ↗ (Boring me...)
plimu.comdaniel.htmOpen ↗ (The Amazing Daniel!)

Quoted message said:

You certainly can lose weight doing only nonaerobic
exercise, but you will generally lose weight faster (and
you will deplete fat stores directly) by doing aerobic
exercise. Anaerobic exercise is good for toning muscle
and building strength, but is isn't good for quickly
losing fat.

BS...what happens to all that unsued glucose then ?? It gets
stored as FAT
!

"gman99" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Quoted message said:

You certainly can lose weight doing only nonaerobic
exercise, but you will generally lose weight faster (and
you will deplete fat stores directly) by doing aerobic
exercise. Anaerobic exercise is good for toning muscle
and building strength, but is isn't good for quickly

losing

Quoted message said:

Quoted message said:

fat.

BS...what happens to all that unsued glucose then ?? It
gets stored as FAT

And to burn fat (as well as pyruvic acid in the Krebs cycle)
requires oxygen, because fatty acids are metabolized
aerobically. Is there some part of this simple fact that
confuses you?

Bill
--
Bill Peckenpaugh
[email hidden]
plimu.combill.htmOpen ↗ (Boring me...)
plimu.comdaniel.htmOpen ↗ (The Amazing Daniel!)