Exertional rhabdomyolysis following excessive exercise of university freshman cheer-training.

Exertional rhabdomyolysis is a life threatening condition resulting from lysis of muscle cells after vigorous exercise. It can cause many complications such as renal failure. It occurs most commonly in military personnel but also in civilians who have excessive excercise after work. Two cases of freshmen who had exertional rhabdomyolysis were reported to illustrate the potential risk of cheer-training. Appropriate measures should be arranged to prevent this condition. Diagnosis and treatment should be given promptly to prevent serious complications.