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Higher Levels of Shear Stress Downregulate Endothelin‐1 mRNA Expression

Physical inactivity has been shown to be a risk factor in the development of endothelial dysfunction. Endothelin‐1 (EDN‐1), a potent vasoconstrictor contributes to the pathogenesis of cardiovascular disease. Exercise‐induced endothelial shear stress (ESS) is a mechanical stimulus caused by alterations in blood flow patterns that regulates vascular function. Although it has been reported that higher levels of ESS may act as a protective mechanism to prevent vascular dysfunction, the role of pulsatile exercise‐induced ESS with varying exercise intensities has not been explored. Therefore, the purpose of this study was to determine the effects of pulsatile exercise‐induced ESS based on in vivo exercise intensity on EDN‐1 expression.