IMPACT OF SIX MONTHS OF EXERCISE TRAINING ON SUBCLINICAL INFLAMMATION AND ENDOTHELIAL FUNCTION
| Autor: | Veerabhadrappa, Praveen |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| Druh dokumentu: | Text |
| DOI: | 10.34944/dspace/3728 |
| Popis: | Purpose: Evidence has accumulated to show that elevated subclinical inflammation and impaired endothelial function has been associated with higher risk of cardiovascular disease (CVD). Despite data on these emerging risk factors, scant attention has been paid to: (1) the interactions of inflammation with endothelial function in relatively healthy African Americans; and (2) the efficacy of non-pharmacologic treatment modalities, such as exercise training, on inflammation and endothelial function. The aim of study 1 was to assess the levels of inflammatory markers, to assess the endothelial function in asymptomatic African Americans. The aim of study 2 was to determine the effects of six-months of exercise training on inflammatory markers and endothelial function in the same cohort. Methods: We recruited 79 African Americans who were sedentary, non-diabetic, non-smoking, and free of CV and renal disease. Before and after 6-month AEXT intervention, inflammatory markers (CRP, TNF-a and IL-6) were measured. Right brachial artery diameter was assessed at rest, during flow-mediated dilation (FMD), and after nitroglycerin-mediated dilation (NMD). Peak dilation was calculated as a measure of FMD and NMD, and the FMD/NMD ratio was calculated as a measure of endothelial function normalized by smooth muscle function. Fasted blood samples were obtained and were analyzed for the metabolic profile. Results: In study 1, the mean CRP for the group was 3.3 ± 0.3 mg/L which falls in the high-risk CRP category as per AHA/CDC guidelines. When divided into tertiles for CRP, low-risk (CRP 3 mg/L); VO2max was significantly higher in the low-risk category compared to average-risk category (P =0.004), and significantly higher in the low-risk category compared to high-risk category (P Kinesiology Ph.D. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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