Question

When a sports man runs he suffers muscle cramp. why?

Answer 1

when we run very rapidly our heart pumps oxygen to our muscle when oxgen get unsufficent our muscles build up lactic acid causes muscular 'cramps'. (the painful contractions of muscles are called cramps).

Answer 2

hii...

here is ur answer......

when a sports man runs he suffers muscle cramp.... because when he running he cannot use utilize maximum oxygen like a normal person.... so the amount of oxygen utilization reduces....then the ATP molecule form in our body. so this is the main reason for muscle cramp....we fell pain also......

hope it helps you mark it as brainliest.......
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Sravan kumar......
Rock star sanu.....