Re: Carbo loading

On 11 Feb, 19:59, rechungREMOVET...@xxxxxxxxx wrote:
On Feb 11, 10:06 am, "joseph.santanie...@xxxxxxxxx"

<joseph.santanie...@xxxxxxxxx> wrote:
So blood glucose vs muscle glycogen is more or less even until
glycogen is depleted. But what about higher levels of exertion that
require more fuel than the blood stream can deliver? Then it tends
toward more glycogen being used. Or am I confusing the rate of CHO
absorbtion with the rate the liver can deliver?

I think you're confused. There's always conversion of glycogen to
glucose going on, and there are several pathways. There's also
oxidative conversion of fat into glucose. You're focusing on only one
pathway and trying to match your CHO intake to your glycogen depletion
for that single path.

I've got of course unlimted fat, but based on the range of paces I'm
considering, that will never account for more than 30% of my fuel. I
see now I was confused about how that works. The fat is first
converted to glucose and introduced to the blood, where it is
indistinguishable from glucose from other sources. For some reason I'd
been thinking of fat as local like muscle glycogen.

Fat I have enough of. Ingested CHO is of a limited supply, maybe 350
kcal/hr. At the start there is a limited amount of muscle glycogen,
which is partially replensihed underway. I don't get what percentages
the load is spread around. And how the partial replenishment underway
works.

Is it say for a given period 3g og muscle glycogen get expended and 1g
gets replenished until we get to zero? And at the same time blood
glucose is being expended at some constant rate?

Or for the practical aspect, given a fixed number of calories
available in the form of stored glycogen at the start of the race, and
a fixed number of calories that can be ingested underway, do you think
it is reasonable to try to pace such that (total from all sources)
calories are expended at at constant rate for the whole 24 hour race?
Ideally at a pace that would result in hitting the wall at 24.5 hours?

Joseph
.

Relevant Pages

  • Re: Does the Atkins Diet work?
    ... ??>> The diet might even work if it does not kill you. ... PA> "good" cholesterol, and reducing blood pressure. ... You are assuming that dietary fat is injected straight into your blood ... Studies show fat is digested (converted to glucose) at a slower rate ...
    (rec.food.cooking)
  • Re: Does the Atkins Diet work?
    ... ??>> The diet might even work if it does not kill you. ... PA> "good" cholesterol, and reducing blood pressure. ... You are assuming that dietary fat is injected straight into your blood ... Studies show fat is digested (converted to glucose) at a slower rate ...
    (rec.food.cooking)
  • Re: Cholesterol and blood sugar
    ... Blood sugar - Wikipedia, the free encyclopedia ... Intake of alcohol causes an initial surge in blood sugar, ... insulin resistance in fat cells reduces the normal effects of insulin on ... ... Insulin allows glucose to move from the blood into liver, muscle, and fat cells, where it is used for fuel. ...
    (alt.support.diabetes)
  • A blood-monitoring device just for pets
    ... A blood-monitoring device just for pets ... Dogs and cats get diabetes too. ... blood sugar rapidly, conveniently and accurately using a small blood ... handheld blood glucose meters designed for humans were ...
    (alt.support.diabetes)
  • Re: Keeping The Blood-sugar level low
    ... Glucose Metabolism, Satiety and Cognitive Function in Healthy ... manifestations, e.g. central obesity, dyslipidaemia, elevated blood ... subsequent standardised meals. ... GI features of the cereal based breakfast was the major determinant of ...
    (sci.med.nutrition)