Pulse Wave Velocity Assessments Derived From Photoplethymography: Reliability And Agreement With A Referent Device

PURPOSE: Pulse wave velocity (PWV) is a common measure of arterial stiffness. Photoplethysmography (PPG) permits continuous measurement of PWV at multiple arterial segments simultaneously. The purpose of this study was to determine whether a simple, non-invasive PPG PWV method agrees with a referent measure, and to determine whether a posture-mediated change in PPG PWV agrees with change in the referent. METHODS: PPG, with electrocardiogram,...