Spike in rhabdomyolysis linked to CrossFit

The growing popularity of CrossFit and other high-intensity resistance training is being blamed for a spate of severe rhabdomyolysis cases in Australia.

Two Victorian hospitals — Royal Melbourne Hospital and Austin Health — have seen 10 cases of severe rhabdomyolysis (defined as a creatine kinase of more than 25,000 units/L) related to high-intensity resistance training in a year.

Half the patients developed severe rhabdomyolysis after doing CrossFit and five after performing other types of weight training.