Sudden cardiac death (SCD) in the fitness setting represents a medical tragedy and a potentially legal dilemma for exercise professionals and facility operators. It's been nearly a decade since the AHA/ACSM published recommendations on automated external defibrillators in fitness centers and nearly five-years since the publication of ACSM's Health Fitness Facility Standards and Guidelines (3rd edition). Yet, these resources are often cornerstones in legal cases involving SCD in fitness centers. Sudden Cardiac Death in the Fitness Setting describes new data on nearly 200 cardiovascular deaths in health clubs and reviews medical-legal implications for practicing exercise professionals.