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Piyush365
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Asked: 2025-10-03T09:36:02+00:00 In:

A sportsman, after a long break of his routine exercise, suffered muscular cramps during a heavy exercise session. This happened due to:

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Poll Results

0%(a) lack of carbon dioxide and formation of pyruvate.
0%(b) presence of oxygen and formation of ethanol.
100%(c) lack of oxygen and formation of lactic acid. ( 1 voter )
0%(d) lack of oxygen and formation of carbon dioxide.
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The correct option is (c) lack of oxygen and formation of lactic acid. During heavy exercise, muscles may not get enough oxygen. Then, glucose breaks down anaerobically to form lactic acid. The accumulation of lactic acid causes muscle cramps and pain in the sportsman’s body.

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    1 Answer

    1. The correct answer is: (c) lack of oxygen and formation of lactic acid. When a sportsman resumes heavy exercise after a long break, his muscles may not get enough oxygen. This oxygen deficit causes anaerobic respiration in muscles, converting glucose into lactic acid instead of carbon dioxide and water. Accumulation of lactic acid leads to muscular cramps and fatigue.

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