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- W2259545025 abstract "Background: African Americans tend to have greater carotid intima-media thickness (IMT), and are 60% more likely to have a stroke than Caucasians. Data on the effects of lifestyle intervention on carotid IMT in African Americans does not exist. The aim of our study was to assess the efficacy of 6 months of diet and exercise intervention on carotid IMT in sedentary African American adults. Methods: Nineteen African American subjects (15F/4M, 52 ± 6yrs) who were sedentary, non smoking, non diabetic, free of cardiovascular disease, not on antihypertensive or cholesterol medications underwent 6 weeks of dietary counseling under the supervision of a registered dietician and were required to follow an AHA low fat, low salt diet for the duration of the study. Compliance was assessed by a diet log (3 days/week). Subjects completed 6 months of supervised aerobic exercise training (3 days/week, 40 minutes/session at 65% of their estimated VO 2max ). Common carotid artery IMT was assessed using high resolution ultrasonography. Results: At baseline, IMT significantly correlated with age (r = 0.58, P = 0.003) and total cholesterol (r = 0.41, P = 0.04). At 6 months, there were significant changes in basal metabolic index (ΔBMI, -0.83 kg/m 2 , P = 0.01); Δtriglycerides (-13.7 mg/dL, P = 0.03) and Δfasting glucose (-7.2 mg/dL, P = 0.01). On repeated measures ANCOVA, the mean IMT were statistically significantly different (F (1, 15) = 7.999, P = 0.013) between before vs. after training (Mean ± SD; 0.617 ± 0.092mm vs. 0.572 ± 0.068mm), after adjusting for changed variables (ΔBMI, Δtotal cholesterol and Δmean arterial pressure) as covariates. Conclusion: Our preliminary study showed that 6 months of diet and exercise intervention reduced carotid IMT by ∼7.3% and improved the cardio-metabolic profile in sedentary African Americans. Reduction in IMT from early and effective lifestyle modification strategies may help to improve cerebrovascular health and prevent stroke in this at-risk stroke population." @default.
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- W2259545025 date "2012-09-01" @default.
- W2259545025 modified "2023-09-23" @default.
- W2259545025 title "Abstract 128: Six Months of Lifestyle Intervention Reduces Carotid Intima-media Thickness in African Merican Adults" @default.
- W2259545025 doi "https://doi.org/10.1161/hyp.60.suppl_1.a128" @default.
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