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Muscle burning during exercise is primarily due to the accumulation of lactic acid, a byproduct of anaerobic metabolism when the body uses energy without enough oxygen. As you exert yourself, your muscles require more energy, and when oxygen levels are insufficient, lactic acid builds up, leading to that burning sensation. Additionally, the depletion of ATP (adenosine triphosphate) and the release of hydrogen ions can contribute to fatigue and discomfort in the muscles. This sensation typically indicates that your muscles are working hard and may need a moment to recover.

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AnswerBot

1mo ago

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