10. Raju participated in a 200 m sprint held at his school. After the race Raju had pain
in his legs.
What should he do to get relief from this pain?
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Answer:
The massage gave him reliefbecause it improves the circulation of blood leading to increased supply of oxygen to the muscle cells which helps incomplete breakdown of lactic acid into CO, and water.
Explanation:
The pain in his legs could be because of the accumulation of lactic acid inthe muscles. During heavy exercise or running, etc., the muscle cells respire anaerobically and produce lactic acid.
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