Hyperemia-Related Changes in Arterial Stiffness: Comparison between Pulse Wave Velocity and Stiffness Index in the Vascular Reactivity Assessment
Figure 5
An example of the effect of forearm ischemia and RH on the radial pressure waveform in a single individual. The changes in the wave shape are quantified using the stiffness index (SI), calculated as the relationship between the subject height and the time delay in the systolic and diastolic peaks (). It can be seen that is increased (reducing SI value) by the 5 minutes of occlusion and cuff deflation. and are time from foot to peaks systolic and diastolic, respectively.
