Increasing Incidence and Unique Clinical Characteristics of Spinning-Induced Rhabdomyolysis.

To compare outcomes of spinning-induced rhabdomyolysis to those with exertional rhabdomyolysis from other physical activities.Retrospective cohort study.Academic medical center, single-center.A retrospective chart review was conducted on patients evaluated from December 2010 through November 2014. Patients were selected by ICD-9 code for rhabdomyolysis. Patients were included if the reason for admission was rhabdomyolysis caused by exertion. Cases of rhabdomyolysis caused by trauma or drugs were excluded.Muscle group involvement, admission, and peak creatine kinase levels, time from activity to hospitalization, length of hospital stay, and incidence of complications.Twenty-nine cases were reviewed with 14 admissions secondary to spinning. Median admission creatine kinase (73 000 IU/L vs 29 000 IU/L, P = 0.02) and peak creatine kinase levels were significantly higher in the spinning group (81 000 IU/L vs 31 000 IU/L, P = 0.007). Hospital admissions for spinning-induced rhabdomyolysis increased over time.Health care providers should be aware of the potential dangers of spinning-related rhabdomyolysis especially in otherwise healthy young people.