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Bradley decides one day to run a marathon without any training. After ten minutes has elapsed and Bradley has run half a mile, he begins to get cramps in his thighs. He is also breathing very rapidly. What is causing the cramps on Bradley's legs?

User JHS
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2 Answers

4 votes
Its because his thighs muscles are not well developed
User Mohit Kumar
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5 votes
The lack of oxygen in his cells are most likely caused by lactic acid buildup
User Ranojan
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