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Abstract
Few studies have examined the relationship between exercise and BP in Black adults, a population with substantial risk for hypertension. This pilot study was undertaken to examine BP, anthropometric characteristics, dietary intake, and resting pulse rate by level of exercise participation in a group of Black Seventh Day Adventists. Subjects were classified as regular exercisers (n=54, age=54.6 yrs) if they reported at least two exercise sessions per week (x=4.0 times per week) lasting a minimum of 20 minutes each, in which they engaged in vigorous exercise. Nonexercisers (n=60, age=56.2 yrs) were those who reported participation in such exercise no more than once per week (x=0.1 times per week). There were no group differences in dietary intake of any macro or micronutrients, but exercisers exhibited significantly lower body mass index, waist circumference, triceps skinfold thickness, and resting pulse rate. Forty-two percent of the nonexercisers were confirmed hypertensives compared to only 20 percent of the exercisers. Age and gender-adjusted BP was significantly lower in the exercisers (BP=123.8/73.4 mm Hg) compared to the nonexercisers (BP=133.5/77.1 mm Hg). After adjustment for anthropometric differences, the systolic BP of the exercisers remained approximately 8 mm Hg lower than their nonexercising counterparts. These data suggest that participation in vigorous exercise is favorably related to blood pressure and may attenuate the risk of hypertension in Black Seventh Day Adventists.
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