E-22 Free Communication/Poster - Blood Flow: JUNE 3, 2011 7: 30 AM - 12: 30 PM: ROOM: Hall B
Hemodynamics At Maximum Exercise And Exercise Recovery In Freshman Football Recruits At a FBS School
Board #13 June 3 8:00 AM - 9:30 AM
PURPOSE: To determine if blood pressures assessed during max exercise and exercise recovery differ in freshman football player recruits classified according to body mass index categories (BMICAT).
METHODS: A group of 97 freshman football recruits (mean age=18yrs, mean height=187 cm, mean weight = 103 kg, mean BMI=27 kg/meters squared, mean percent fat= 18.3%.) underwent graded exercise testing on a treadmill. Height and weight were assessed and BMI was calculated as weight (kg) / height (m) squared. All 97 subjects were classified as either "normal weight" (NW)(N=38), "overweight" (OW)(N=41) or "obese" (OB)(N=28) according to the National Institutes of Health guidelines. Body fat percentage (PCTFAT) was assessed using dual x-ray absorptometry. Resting systolic (SBP) and diastolic (DBP) blood pressures were taken following a 3 minute rest period. Mean arterial pressure (MAP) was estimated as [.3(SBP-DBP)]+DBP. Pressures were also assessed at max exercise and at 1, 3, and 5 minutes post exercise. An analysis of covariance (ANCOVA) with PCTFAT as a covariate repeated across recovery time was used to determine if differences remained among BMICAT in adjusted values for max exercise and all recovery pressures.
RESULTS: After ANCOVA adjustment, all maximum and recovery pressures were different among BMICAT with statistical significance found at max exercise and 1 minute post exercise.
CONCLUSION: After adjustment for PCTFAT, differences remain in blood pressures among BMI categories.© 2011 American College of Sports Medicine