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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

2405

Board #13 June 3 8:00 AM - 9:30 AM

Doughty, Krystal; Martin, Steven; Lambert, Brad; Oliver, Jon; Wier, David; Tanguay, John; Crouse, Stephen F. FACSM; Green, John S. FACSM

Author Information
Medicine & Science in Sports & Exercise: May 2011 - Volume 43 - Issue 5 - p 649
doi: 10.1249/01.MSS.0000401797.79870.03
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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.

Table
Table:
adjusted MAP means p/m SEE, letters with same superscript are not sig. diff. (p< 0.05)
© 2011 American College of Sports Medicine