Lactic Acid
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In the , discusses the role of lactate in exercise, emphasizing that contrary to common belief, the burning sensation typically associated with intense physical activity is not caused by lactic acid, but by lactate metabolism. He indicates that lactate is misconceived as causing discomfort or fatigue during exercise, whereas it actually acts as a fuel for muscles, enhancing their performance during activities. The burn can be seen as a trigger point that facilitates the release of lactate and provides energy, suggesting that some amount of such discomfort can be beneficial if managed appropriately 1.
In this context, lactate not only helps in terms of immediate muscle function but also contributes to brain health by releasing specific compounds from brain-supporting cells 1. Further discussions with confirm that lactate acts as an effective fuel source during high-intensity workouts. Lactate is produced through the process of anaerobic glycolysis, where it serves as a buffer and a fuel, offsetting the accumulation of hydrogen ions which can cause fatigue 2 3.
In summary, lactate serves multiple beneficial roles during intense exercise, supporting muscle and brain function while delaying fatigue, contrary to the negative perception typically associated with the sensation of burning in muscles.
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