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muscle recuperation

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31 Mar 2014 16:13 #21165 by dboxing
dboxing created the topic: muscle recuperation
Dear Dr.

During fasting if one exercises a certain muscle group intensely does the body pull from other areas to rebuild? If those muscles require protein, does this mean that other muscles are diminished?
Can this be offset by consuming protein (a minimal amount), then restarting the fast? Or will the body just burn the protein for an energy source?

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31 Mar 2014 16:46 #21166 by TheFastDoctor
TheFastDoctor replied the topic: muscle recuperation
That is theoretically possible dBoxing but usually there is enough protein in storage; Serum, liver and other locations, for the muscle building needs. It remains a good idea, though, to exercise all your muscles to at least some extent during the fast.

Problem is if you consume protein you teach your metabolism to break down (digest) protein, which would endanger your muscles during the fast. That's why you need a fatty meal upon entering the fast: To guide your metabolism towards fat. Thus indeed yes it could burn the protein for energy and that habit may spread to your own proteins...

André

All my posts are "generic", based on my opinions and experiences only and are not intended to replace the advice of your own licensed medical practitioner.

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31 Mar 2014 18:24 #21170 by kaypeeoh
kaypeeoh replied the topic: muscle recuperation
I've wondered about that. If you ingest protein during a fast does the body break it down--gluconeogenesis--to give itself a dose of sugar or does it reserve the protein for repair of stressed muscles?

A simple test would be to check blood sugar before and after a protein meal.

kpo

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31 Mar 2014 19:13 #21171 by TheFastDoctor
TheFastDoctor replied the topic: muscle recuperation
Excellent idea KPO. Reaction may of course go either way.

My bit of biology tells me that if an organism is acutely stressed, maintenance and upgrade would be secondary to survival and therefore breaking down for energy would be preferred.

Your proposed test should of course be done under different conditions such as a passive and active fast, with and without elimination cycles.

André

All my posts are "generic", based on my opinions and experiences only and are not intended to replace the advice of your own licensed medical practitioner.

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