During vigorous exercise, when the oxygen supply to muscles is insufficient for aerobic respiration, muscles switch to anaerobic respiration. This process produces ATP rapidly but also generates lactic acid as a byproduct. The accumulation of lactic acid lowers the pH in muscle cells, interfering with muscle contraction and leading to fatigue and soreness.
Muscle fatigue is due to accumulation of
Asked in WBPSC CS Prelims 2018 · Topic: Skeletal and Muscle System (Muscle Physiology: Contraction Dynamics, Fatigue, and Fiber Types)
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