Echocardiographic and Blood Pressure Characteristics of First-Year Collegiate American-Style Football Players.
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Echocardiographic (echo) and blood pressure (BP) reference values may help identify athletes at cardiovascular risk, yet benchmarks are inadequate for collegiate American-style football (ASF) players. Our purpose was to describe echo characteristics and BP values in collegiate ASF athletes compared with normal. First-year players (n = 80, age = 18 1 years, height = 186 7 cm, weight = 100.1 22.0 kg, body mass index = 28.7 5.0), body surface area [BSA] = 2.24 0.25; percentage fat = 16.5 9.7%) were measured for systolic and diastolic BP, and underwent echo procedures by a certified sonographer. Data analyses included simple statistics, Pearson r, frequencies in normal ranges, and t test; = 0.05. Selected echo measurements (and indexed by BSA) were: left ventricular (LV) internal diameter diastole = 5.3 0.5 cm (2.4 0.3); left atrial diameter = 3.9 0.5 cm (1.8 0.2): LV end-diastolic volume = 138 30 ml (62 11); septal wall thickness = 1.0 0.2 cm (0.5 0.1); LV posterior wall thickness = 1.0 0.1 cm (0.5 0.1), LV mass = 212 46 g (95 18); and relative wall thickness = 0.39 0.07. Correlations between BSA and echo variables were significant (r = 0.26 to 0.50). Indexing by BSA reduced percentages above reference ranges from 36% to 7%. Septal wall thickness index was significantly greater in black (0.5 0.1) than nonblack (0.4 0.1) athletes. Fifty-nine athletes were hypertensive or prehypertensive, and diastolic BP was significantly greater in black (76 10 mm Hg) compared with nonblack athletes (71 8 mm Hg). ASF athletes demonstrated LV wall thicknesses and cavity sizes consistent with sport-training hypertrophy but which were unremarkable when indexed by BSA. Ethnicity generally did not influence echo variables. No ASF players were identified with cardiac dysfunction or disease.
Crouse, S. F., White, S., Erwin, J. P., Meade, T. H., Martin, S. E., Oliver, J. M., ... Weir, D.
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Crouse, Stephen F||White, Stephanie||Erwin, John P||Meade, Thomas H||Martin, Steven E||Oliver, Jonathan M||Joubert, Dustin P||Lambert, Bradley S||Bramhall, Joe P||Gill, Kory||Weir, David