What is muscle fatigue?

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(A) Muscle fatigue is a condition where muscles lose their ability to contract effectively after prolonged or intense activity. Repeated activation of

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The accumulation of lactic acid in muscles due to anaerobic breakdown of glycogen.

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(A) Muscle fatigue is a condition where muscles lose their ability to contract effectively after prolonged or intense activity. Repeated activation of the muscles leads to the accumulation of lactic acid due to the anaerobic breakdown of glycogen in the muscle fibres. This accumulation of lactic acid causes the sensation of fatigue and muscle soreness.

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