Figure 4. Relations between resting peroneal nerve muscle sympathetic activity and arterial pressure Mayer wave amplitude in 10 young females (18-28 years old), 11 young males (18-29 years old) and 13 older males (60-72 years old).

There were no consistent relations among arterial pressure Mayer wave amplitude and vascular sympathetic outflow. Despite striking differences in resting sympathetic outflow, young females and older males have comparable Mayer wave amplitude (redrawn from Taylor et al. 1998b). aiu, arbitrary integration units.