"Karl Hungus" <
[email protected]> wrote in message
news:mdu3c.223793$uV3.891961@attbi_s51...
> I've been reading how many of the more serious runners
> here like to "carb up" before a particularly taxing event.
> Can anyone here explain what exactly that entails, how
> it's properly done, and what the benefits are?
>
> Also, I'm wondering if there's something I can be eating
> during the day
that
> will provide me with a noticeable increase in energy
> during my little
6-mile
> runs 4 nights a week.
>
>
There is carb loading, usually done before a long (say
anything over 1 hour in duration) race. This involves
reducing training volume for a few days and increasing
carb intake over that time period to optimize muscle
glycogen stores.
For everyday folks who are exercising, the recommended range
of carb intake is 6 to 10 g of carb per kg body weight (~2.5
to 4.5 g per pound). Where your eating falls on that
spectrum depends on training volume/intensity. For something
like routine running, I would suggest 7 to 8 g/kg.
Eat breakfast, lunch and dinner. Consider having a bit of a
snack a couple of hours before running. perhaps a sport
drink and something with carbs 2 hours pre-run. Then make
sure you eat within an hour or so of eating (although if you
are not going to run the next day, this is less important).
The benefits of carbs (and muscle/liver glycogen) is that
glycogen is the preferred energy source for exercise. It is
more efficient in terms of energy production per liter of
oxygen than say fat oxidation. THis means that you can run
at a higher intensity which means more energy is expended.
If one is training, running faster gives you a better
training stimulus (however, one does need to vary the
intensity and duration in a proper training program).
If you neglect to take in carbs, over time the muscle
glycogen stores will get reduced and that will impact the
runs. So it might not happen the first day or even the
second day, but several days it will catch up with you.