What causes muscular fatigue?

Question

Quizplus · Accepted Answer

Muscular fatigue is often caused by the accumulation of lactic acid, which can occur during intense exercise when there is insufficient oxygen to support aerobic metabolism. Lactic acid can interfere with the normal contraction and relaxation of muscles, leading to fatigue. Depletion of calcium and sodium can impair muscle function, but these are not the primary causes of muscular fatigue. Glycogenesis is a process by which glycogen is synthesized in the body and is not related to muscular fatigue.

What Causes Muscular Fatigue