Data were fitted using second‐order polynomials for enthalpy panels and third‐order polynomials for the other panels. Each panel shows individual data points, trabecula‐specific regression lines (LV‐CON (n = 16), LV‐PAH (n = 22), RV‐CON (n = 14), RV‐PAH (n = 21)), and the resulting averaged regression lines. Means ± SEMs of peak values were subsequently superimposed.