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  • Title: Muscle metabolism during exercise: anaerobic threshold does not exist.
    Author: Ohira Y, Tabata I.
    Journal: Ann Physiol Anthropol; 1992 May; 11(3):319-23. PubMed ID: 1642731.
    Abstract:
    Blood lactate level begins to increase at a certain work load or oxygen consumption which is called as anaerobic threshold (AT). However, numerous studies showed that anaerobic glycolysis is not the cause of the enhanced accumulation of blood lactate during exercise. Increased lactate production is seen even in fully aerobic muscles. Some studies suggest that elevation of lactate is due to a temporary imbalance between the rates of pyruvate formation by aerobic glycolysis and pyruvate utilization in the Krebs cycle. These results clearly suggest that AT does not exist.
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