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Old 06-06-2004, 05:35 PM   #12 (permalink)
GaryG
 
Posts: n/a
Re: What did I do wrong? re: nutrition?

"curt" <nospam@verizon.net> wrote in message
newsnNwc.8709$321.257@nwrdny02.gnilink.net...
> I was on a 75 mile ride today and pushed it pretty hard. The weather was
> great and I know I was hydrated. I have been on a low carb diet pretty
> strict from Tuesday until Saturday night, which was the night before the
> ride. I ate sushi that night and a salad. The next morning I ate a

banana
> and piece of chicken sausage and a cookie when I got to the ride start. I
> set out and pretty much pushed from the start. I felt really pretty good

on
> the ride. Stopped a few times and ate a total of 1 1/2 bananas and 1/2 of

a
> peanut butter and jelly sandwich. After the ride I ate 1/2 of a sandwich
> and another cookie and some more water. I was only drinking water on this
> ride. I felt okay coming home but began to get a bit dizzy. I stood up

and
> felt really dizzy for a bit and had to put my head lower for few. I ate
> some rice, pasta, fish and some blueberry yogurt and laid down for an hour
> or so and now feel much better.
>
> Did I not eat enough? Should I add carb earlier? Why did I get dizzy?
>
> Thanks,
> Curt
>


It sounds like a typical low-carb bonk. This is one reason why many folks
think that low-carb is inappropriate for the athletically inclined.

On your ride, you probably burned around 2600 calories (assuming 35 calories
per mile). But, you only consumed about 500 calories during the ride, and
your breakfast was probably only around 400 calories. And, you had been
"low-carbing" for days prior to the ride. Finally, you rode "hard"...when
you do that, your body needs carbs...but, you've not been consuming
sufficient carbs for days.

I've heard it said that on rides lasting longer than an hour or two, you
should try to consume around 250 calories per hour. This won't replace all
the calories you're burning (unless you're going very, very slow), but will
help prevent the bonk.

Eating carbs and protein post-ride was a good idea...but, your eating habits
before and during the ride are a classic case of, "Doh!"

GG


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