Paheli participated in a 400 m race competition held at her school and won the race. When she came home she had mixed feelings of joy and pain as she had cramps in her leg muscles. After a massage, she was relieved of the pain. Answer the following questions related to the situation.
(a) What can be the possible reasons for the pain in her legs?
(b) Why did she fell comfortable after a massage? [NCERT Exemplar; HOTS]
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Explanation:
a) while running she respirated anaerobically. in her muscles lactic acid accumulated and caused pain.
b) after massage her blood circulation improved which helped to break down lactic acid into Carbon dioxide and water.
so she felt better.
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