Dependence of most clinically relevant pulse wave indices on model parameters.

<p>(A)Resulting stepwise regression model for predicting central augmentation index. The steeper is the heart ejection profile, i.e. the smaller is the parameter <i>τ</i>, the smaller is the central augmentation index (AI) estimated using pulse wave analysis method. (B) Correlation between the model-predicted pulse wave velocity (PWV) and the model-estimated stiffness of large arteries described by parameter <i>k</i>₃ (compare Eqs (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0190972#pone.0190972.e002" target="_blank">2</a>) and (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0190972#pone.0190972.e003" target="_blank">3</a>)). PWV was calculated by dividing the distance between aortic arch and femoral artery by the time needed by the wave to travel that path.