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. Previous animal and human studies provided the evidence that  testosterone may affect ventricular repolarization by shortening of the QT  interval. Synthetic derivatives of testosterone, modified to enhance its  anabolic properties, are occasionally abused by some competitive athletes.  Objective. We assessed whether the QT interval duration could discriminate  androgenic anabolic steroids (AAS)-using strength athletes (SA) from  drug-free endurance athletes (EA), by comparing 25 formulas for QT interval  correction. Methods. We recruited 22 elite male athletes involved in  long-term strength or endurance training and 20 sedentary controls. All elit

Short QT interval is unreliable marker of anabolic androgenic steroid abuse in competitive athletes