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The development of insulin resistance may be an early step in the development of hypertension; however, the mechanism for this process is not known. The worsening of insulin resistance and hypertension could increase both systemic and glomerular capillary pressures and predispose an individual to renal injury. The purpose of this study was to examine the(More)
BACKGROUND Although advancing age is associated with a higher prevalence and complexity of exercise-induced ventricular arrhythmias (EIVA), the role of age-associated cardiac anatomic and functional characteristics in this relationship has not been explored. METHODS We performed both M-mode echocardiography and maximal treadmill exercise testing within(More)
Increased dietary sodium intake has been associated with an increase in blood pressure as well as a decrease in insulin-mediated glucose disposal in young healthy adults. The purpose of this study was to determine whether dietary sodium intake is associated with changes in oral glucose tolerance, insulin sensitivity, and blood pressure in older, sedentary,(More)
Although exercise-induced supraventricular arrhythmias (EISVA) increase with advancing age, it is unclear whether age-associated changes in cardiac structure or function play a major role in this increase. To address this question, we examined the relationship between M-mode echocardiographic variables and EISVA occurring during maximal treadmill exercise(More)
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