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Science Forum Index » Life Extension Forum » Experiment: Do we need eating before exercising
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| Ignoramus30622 |
 Posted: Fri Jan 09, 2004 9:10 am |
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Some people think that we need to eat before relatively modest
weightlifting or cardio. My personal feeling, after reading some navy
seal training books etc, was that it was a false theory and that as
long as we eat reasonably, we should not worry about eating
immediately before exercising.
Since I decided to try fasting once per week for a little while, I
decided to test this theory. So, this Thursday I did not eat
anything. This means that there was about 38 hours before my last meal
on Wednesday and my first meal on Friday.
As an aside, I felt pretty good throughout my fast and I was not
miserable at all.
So, this morning, after not eating anything on Thursday, I did my
usual resistance exercises, consisting of pullups, pushups, weighted
situps, crunches, deadlifts, dumbbells, etc. Then I walked to work
(40+10 minutes). None of these activities was impaired by the fact
that for the last 36 hours, I did not eat anything. In fact, I felt
that some exercises were even easier for me, namely pullups and
weighted situps.
That means there is at least one datapoint refuting the theory that it
is important to eat something before modest exercise. I will try
running after a fast next week, since I cannot run right now (a minor
knee injury).
As a clarification, obviously there is a point beyond which a
prolonged fast would impair exercise performance. Also, before doing
truly heavy exrcises like running marathons etc, eating before
exercise may be important. But for a regular dude like me, doing his
morning stuff, eating before exercise does not seem like it's
important at all.
I do not fast to lose weight, as such. I just read some convincing
things that suggest that occasional fasting may make one feel better.
It is an experiment at this point, I will try it for a few weeks and
then check if there is anything good that I get out of it.
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| Roger Zoul |
| Posted: Fri Jan 09, 2004 10:02 am |
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Guest
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Ignoramus30622 wrote:
:: Some people think that we need to eat before relatively modest
:: weightlifting or cardio. My personal feeling, after reading some navy
:: seal training books etc, was that it was a false theory and that as
:: long as we eat reasonably, we should not worry about eating
:: immediately before exercising.
::
:: Since I decided to try fasting once per week for a little while, I
:: decided to test this theory. So, this Thursday I did not eat
:: anything. This means that there was about 38 hours before my last
:: meal on Wednesday and my first meal on Friday.
::
:: As an aside, I felt pretty good throughout my fast and I was not
:: miserable at all.
::
:: So, this morning, after not eating anything on Thursday, I did my
:: usual resistance exercises, consisting of pullups, pushups, weighted
:: situps, crunches, deadlifts, dumbbells, etc. Then I walked to work
:: (40+10 minutes). None of these activities was impaired by the fact
:: that for the last 36 hours, I did not eat anything. In fact, I felt
:: that some exercises were even easier for me, namely pullups and
:: weighted situps.
::
:: That means there is at least one datapoint refuting the theory that
:: it is important to eat something before modest exercise. I will try
:: running after a fast next week, since I cannot run right now (a minor
:: knee injury).
::
:: As a clarification, obviously there is a point beyond which a
:: prolonged fast would impair exercise performance. Also, before doing
:: truly heavy exrcises like running marathons etc, eating before
:: exercise may be important. But for a regular dude like me, doing his
:: morning stuff, eating before exercise does not seem like it's
:: important at all.
::
:: I do not fast to lose weight, as such. I just read some convincing
:: things that suggest that occasional fasting may make one feel better.
:: It is an experiment at this point, I will try it for a few weeks and
:: then check if there is anything good that I get out of it.
It's a YMMV kind of thing. I don't like to lift if I feel hungry. Whether
being hungry impacts what I can physical do in the gym, I don't know or
care. What matters more to me is how I feel mentally.
Also, I would not attempt a long bike ride (three or more hours) without
having something to eat and drink. Of course, I'm not going to gorge before
either activity. |
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