workout of the day

Thursday 050714

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"Kelly"

Five rounds for time of:
Run 400 meters
30 box jump, 24 inch box
30 Wall ball shots, 20 pound ball

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Compare to 050410.

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Uncle Rhabdo!

Warning, these workouts can kill! Acute exertional rhabdomyolysis is a serious clinical illness caused by an injury to skeletal muscle that results in the release of myoglobin and other cellular contents, including creatine kinase (CK-MM fraction) and aldolase, into the circulatory system. It can kill. Several cases of “Rhabdo” have been associated with CrossFit workouts. Only newcomers have been affected and poor fitness has NOT been a factor. We cannot emphasize enough the importance and safety of starting slowly: http://www.crossfit.com/cf-info/start-how.html.