What substance accumulates during muscle contraction as a result of exercise?

Understand the Problem

The question is asking about the substance that builds up in muscles during exercise, specifically during muscle contraction. This is related to the physiological processes that occur in the body when muscles are exerted.

Answer

Lactic acid.

The final answer is lactic acid.

Answer for screen readers

The final answer is lactic acid.

More Information

Lactic acid is a byproduct of anaerobic metabolism in muscles during exercise. It has been traditionally associated with muscle fatigue and soreness, although recent discussions suggest that lactate and other metabolites also play roles.

Tips

A common mistake is assuming that lactic acid alone causes muscle soreness immediately after exercise. Delayed onset muscle soreness is more related to muscle damage and inflammation.

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