Figure 16.

Augmentation index (AIx%) is a pulse wave characteristic that is affected by increases in central arterial stiffness. Individuals with greater arterial stiffness typically demonstrate higher values of AIx. In young men, higher muscle sympathetic nerve activity (MSNA) is associated with greater AIx and presumably, higher arterial stiffness (left panel). However, this association is inverse in young women, highlighting the important differences in neurovascular regulation. Data from (16).