The Gulf's warm waters helped it gain strength.

VOA: special.2010.08.24

On Sunday, a day before making landfall, Katrina built up strength in the warm waters of the Gulf of Mexico.

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And it's expected to gather new strength when it hits warm waters again and forecaster say, heads towards Alabama, Mississippi, Louisiana or Texas.

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But the wrong shoes, failing to warm up and not being aware of strength or muscle balance can also cause injuries.

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