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Med Sci Sports Exerc. 1997 May;29(5):646-53.

Effect of endurance training on ammonia and amino acid metabolism in humans.

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Copenhagen Muscle Research Centre, August Krogh Institute, University of Copenhagen, Denmark.


Few studies examine ammonia and amino acid metabolism in response to endurance training. Trained humans generally experience less increase in plasma ammonia during either prolonged or intense exercise. This is probably a reflection of reduced ammonia production and release from the active muscle; it could be a reflection of decreased AMP deaminase activity, decreased glutamate dehydrogenase activity, and/or increased alanine and glutamine formation. Little is known regarding the associated enzyme systems in humans, but in experiments with animal models, aerobic training decreases AMP deaminase and increases the enzymes of amino acid transamination and oxidation.

[Indexed for MEDLINE]

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