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Age-related Upper Limb Vascular System Windkessel Model using Photoplethysmography

  • Conference paper
3rd Kuala Lumpur International Conference on Biomedical Engineering 2006

Part of the book series: IFMBE Proceedings ((IFMBE,volume 15))


Arterial stiffness is known to be affected by aging, leading to changes in peripheral pulse propagation speed and shape. In this paper, the heart-finger segment of the upper- limb vascular system of six subjects in two age-groups (below 30 and above 55 years) is modeled using a modified Windkessel model. Actual left-ventricle pressure (LVP) data has been used as the input to the model. Circuit simulation results show a significantly higher amplitude for the dicrotic notch and a lower second peak in younger subjects. Among the older subjects, there was a gradual disappearance of dicrotic notch while the second peak appeared later. Comparison of the characteristics of the model output with measured peripheral pulse shows a good degree of conformity with the actual pulse signal. The parameters in the Windkessel model provide a simple, noninvasive means for studying changes in the elastic properties of the vascular system, depending on the age and potentially state of health.

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© 2007 Springer-Verlag Berlin Heidelberg

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Chellappan, K., Zahedi, E., Mohd Ali, M.A. (2007). Age-related Upper Limb Vascular System Windkessel Model using Photoplethysmography. In: Ibrahim, F., Osman, N.A.A., Usman, J., Kadri, N.A. (eds) 3rd Kuala Lumpur International Conference on Biomedical Engineering 2006. IFMBE Proceedings, vol 15. Springer, Berlin, Heidelberg.

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-68016-1

  • Online ISBN: 978-3-540-68017-8

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