Stiffness of ageing vessels

[ibenemerito88]

Thanks for this great database.

After reading your paper "Modelling arterial pulse waves in healthy ageing" it is not totally clear to me how you estimate the stiffness of all the segments. My guess is that you estimate Eh from equation 3 in the vessels where you have PWV measurements, and use equation 2 for all the other vessels. Since k3 changes with age this would result in all the vessels becoming stiffer over time, even those whose radius remains constant. Is this correct? Thanks.