Figure 2.

Hemodynamic measures of the effects of healthy aging on RV (A) Heart rate, (B) Peak pressure, (C) End-diastolic pressure, (D) $\frac{dp}{dt}$max (positive side) and $\frac{dp}{dt}$min (negative side), (E) Contractility index, and (F) The preload-independent measure of relaxation (tau). Healthy aging significantly increased RV peak pressures and the load-dependent measures of RV contractility ($\frac{dp}{dt}$max and contractility index), while not affecting the heart rate, end-diastolic pressures (EDP), and relaxation function ($\frac{dp}{dt}$min and tau). Error bars represent standard error of the mean (SEM). ^*Indicates p < 0.05. RV, Right ventricle; BPM, Beats per minute; EDP, End-diastolic pressure; $\frac{dp}{dt}$max and min, Load-dependent measures of RV contractility and relaxation; n.s, Non-significant.