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Vascular Responses to Sympathetic Activation and Altered Shear Rate: The Impact of Hypertension and Sodium Intake

Hypertension Clinical Trial

Official title:
Vascular Responses to Sympathetic Activation and Altered Shear Rate: The Impact of Hypertension and Sodium Intake

Clinical Trial Summary

The aim of this study is to determine if alterations in sodium intake alter peripheral vascular function and exercise tolerance in young individuals.

Clinical Trial Description

Sodium intake is a major contributor to the development of hypertension in the developed world. Interestingly, it has been recently revealed that, in addition to the cardiovascular dysfunction associated with high sodium intake-induced hypertension, individuals who have unaltered blood pressure after chronic high sodium intake, termed salt resistant, report similar reductions in cardiovascular function when compared to salt sensitive individuals. While the extent to which this high sodium intake negatively alters cardiovascular structure as well as function is currently being explored, little is known about how high sodium intake impacts vascular function and blood flow regulation during exercise. Therefore, this study will determine if alterations in sodium intake alter peripheral vascular function and exercise tolerance in young individuals. The investigators hypothesize that increases in sodium intake will reduce exercise-induced arterial dilation in response to shear and result in exercise intolerance, via impaired functional sympatholysis, at moderate-to-high exercise workloads. Furthermore, the investigators hypothesize that these changes in blood flow regulation and exercise tolerance in young individuals will be reversed following antioxidant supplementation, implicating the role of oxidative stress in this dysfunction. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03558022
Study type Interventional
Source Virginia Commonwealth University
Contact
Status Completed
Phase N/A
Start date May 15, 2018
Completion date November 5, 2021
View Details
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