Elevated alanine aminotransferase in current national football league players: correlation with cardiometabolic syndrome markers, obesity, and insulin resistance.
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OBJECTIVE
Media reports suggest increased cardiovascular mortality in former National Football League (NFL) players. We previously demonstrated that current heavier players already have cardiometabolic syndrome markers: blood pressure (BP) >or=130/85 mm Hg, fasting glucose >or=100 mg/dL, triglycerides >or=150 mg/dL, waist circumference >or=100 cm, and high-density lipoprotein (HDL) METHODS A prospective study including 69 of 91active players (76%) from one NFL team was performed. We evaluated the presence of an elevated alanine aminotransferase (ALT) in the players. We also analyzed the association of an increased ALT with cardiometabolic syndrome markers, waist-to-height ratio, and triglyceride-to-HDL ratio in current NFL players. RESULTS ALT >or=30 IU/L was significantly correlated with mean body mass index (BMI), BMI >or=30 kg/m, BP >or=130/85 mm Hg, waist circumference >or=100 cm, and triglycerides-to-HDL ratio >3.5. An elevated ALT was significantly more common in linemen. CONCLUSIONS An elevated ALT was significantly associated with visceral obesity, hypertension, cardiometabolic syndrome markers, and insulin resistance in current NFL players.
