Related Experiment Video

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Arterial wave reflection decreases gradually from supine to upright

Bas van den Bogaard1, Berend E Westerhof, Hendrik Best

  • 1Department of Vascular Medicine, Academic Medical Center, University of Amsterdam, the Netherlands. b.vandenbogaard@amc.nl

Blood Pressure
|June 18, 2011
PubMed
Summary

Arterial wave reflection, measured by augmentation index (AIx) and reflection magnitude (RM), gradually decreases during head-up tilt (HUT) even as total peripheral resistance (TPR) increases. This finding challenges typical cardiovascular responses to rising resistance.

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