Validity and reliability of aortic pulse wave velocity and augmentation index determined by the new cuff-based SphygmoCor Xcel
Aortic pulse wave velocity (AoPWV) and augmentation index (AIx) are commonly used
measures of large elastic artery stiffness and wave reflection, respectively. Recently, a new
cuff-based SphygmoCor device (Xcel) has been developed to measure both AoPWV and
AIx. We sought to examine the following:(1) the validity of Xcel compared with the well-
validated tonometry-based SphygmoCor device (MM3);(2) the intratest and day-to-day
reliability of Xcel;(3) the influence of body side (right or left) on Xcel measurements; and (4) …
measures of large elastic artery stiffness and wave reflection, respectively. Recently, a new
cuff-based SphygmoCor device (Xcel) has been developed to measure both AoPWV and
AIx. We sought to examine the following:(1) the validity of Xcel compared with the well-
validated tonometry-based SphygmoCor device (MM3);(2) the intratest and day-to-day
reliability of Xcel;(3) the influence of body side (right or left) on Xcel measurements; and (4) …
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