What causes muscular fatigue

Question

Quizplus · Accepted Answer

Accumulation of lactic acid in the muscles can cause fatigue during exercise. When the muscles do not get enough oxygen, they break down glucose without oxygen, which produces lactic acid. As the levels of lactic acid increase, the pH level of the muscles become more acidic, causing fatigue and soreness.

Option B, depletion of calcium, can also cause muscle fatigue, but this is typically due to a medical condition or a lack of calcium in the diet.

Option C, depletion of sodium, can cause muscle cramps but not necessarily fatigue.

Option D, glycogenesis, is the process by which glycogen is produced and stored in the muscles, but it does not directly cause fatigue.

What Causes Muscular Fatigue