Muscle fatigue occurs due to the accumulation | vedclass

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(C) Muscle fatigue occurs primarily due to the accumulation of lactic acid in the muscle fibers. During intense exercise,when the oxygen supply is ins

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Lactic acid

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(C) Muscle fatigue occurs primarily due to the accumulation of lactic acid in the muscle fibers. During intense exercise,when the oxygen supply is insufficient for aerobic respiration,muscles switch to anaerobic respiration. This process produces lactic acid as a byproduct. The accumulation of lactic acid lowers the $pH$ of the cytoplasm,making it acidic. This acidic environment inhibits the activity of various enzymes involved in muscle contraction and energy production,leading to a cessation of muscular contraction and the sensation of fatigue.

Muscle fatigue occurs due to the accumulation of:

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