Thread: How to Cut
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Old 12-06-2005, 05:25 PM
Darkhorse Darkhorse is offline
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I always assumed I'd be burning off the dextrose (less then 20g) I use in the first 30min of lifting anyway
The BCAA's should be enough to get you through. If I'm cutting, I would rather drink a protein/BCAA drink preworkout, mainly for energy while keeping myself anticatabolic. I'd much rather taking dextrose after lifting because I know that it'll jet straight into my muscles rather than fat.


There is another mechanism whereby BCAAs might prevent fatigue. We mentioned that BCAAs are used for fuel during exercise. As these amino acids become depleted, the ratio of tryptophan to BCAAs in the plasma rises. It turns out that tryptophan and BCAAs compete for the same amino acid transporter into the brain. The excess tryptophan in the brain is converted to serotonin, which induces a feeling of lethargy and fatigue. (6)

6. Blomstrand E, Celsing F, Newsholme EA. Changes in plasma concentrations of aromatic and branched-chain amino acids during sustained exercise in man and their possible role in fatigue. Acta Physiol Scand 1988 May;133(1):115-21

Preworkout Protein
Delivery of amino acids has been shown to be significantly greater during the exercise bout when consumed pre-workout than after exercise. There is also a significant difference in amino acid delivery in the 1st hour after exercise, with the pre-exercise protein drink providing a significant advantage. Net amino acid uptake across the muscle is twice as high with a pre-workout protein drink as compared to consuming it after. Phenylalanine disappearance rate, an indicator of muscle protein synthesis from blood amino acids, was significantly higher when amino acids were taken pre-workout.

(Tipton, 2001)

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