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Re: [patrickh] GLYCOGEN STORES: To Deplete or Not?:
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jt512
Jun 10, 2011, 5:54 PM
Views: 14964
Registered: Apr 12, 2001
Posts: 21904
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patrickh wrote: Wow, I've never read a thread full of quite so much misinformation in my life.
That's pretty funny, since, with the rest of your post, you at least double the misinformation.
In reply to: Glycogen depletion will not necessarily increase recovery time.
Um, yeah right.
In reply to: A heavy pump and/or burn is not indicative of glycogen depletion.
Savor that sentence, folks. It's the only accurate one in the post.
In reply to: It is indicative of lactic acid and other metabolite buildup within a given muscle.
Lactate does not cause muscle fatigue. That's been shown definitively in controlled experiments.
In reply to: Glycogen depletion can occur rather quickly if somewhat fasted before activity. For example, doing 4-5 sets of high rep bicep curls will likely deplete glycogen stores of the bicep muscles.
For 4–5 sets of curls? I'm skeptical, but I'm open to seeing a respectable source for that. Intramuscular glycogen, which would be the main source of glucose for 4–5 sets of biceps curls, is not burned during fasting. Liver glycogen is depleted after a fast, but I wouldn't think that a few sets of curls would be sufficient to mobilize liver glycogen.
In reply to: Once Glycogen stores are depleted, you will not necessarily burn muscle/proteins.
If you're doing anaerobic exercise in a fasted state you sure will.
In reply to: The process is called glyconeogenesis (proteins are converted to glucose).
If you're going to throw out a technical term for no good reason, at least get it right. The metabolic process of producing glucose from non-carbohydrate precursors is gluconeogenesis.
In reply to: In all likelyhood, your body will begin using oxidative pathways to burn fat.
If you're doing anaerobic exercise, then the "likelyhood" of that is zero, since it is impossible to fuel anaerobic exercise via aerobic pathways.
In reply to: In fact, a given muscle will not burn fat if it still has glucose for fuel.
That is (a) false and (b) irrelevant to the subject.
In reply to: So, glycogen stores must be depleted under normal circumstances for said muscle to burn fat.
Ditto.
Jay
(This post was edited by jt512 on Jun 10, 2011, 6:15 PM)
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Edit Log:
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Post edited by jt512
() on Jun 10, 2011, 6:02 PM
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Post edited by jt512
() on Jun 10, 2011, 6:15 PM
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