• IEEE Trans Biomed Eng · Mar 1990

    Frequency analysis of the peripheral pulse wave detected in the finger with a photoplethysmograph.

    • M H Sherebrin and R Z Sherebrin.
    • Department of Medical Biophysics, Faculty of Medicine, University of Western Ontario, London, Canada.
    • IEEE Trans Biomed Eng. 1990 Mar 1; 37 (3): 313-7.

    AbstractA photoelectric plethysmograph is described that performs a frequency analysis of the peripheral volume pulse wave using a portable computer. It was used to determine how the pulse shape varied with age using 54 subjects in three age groups, 10-29, 30-59, and 60-89 years. The youngest group had a larger power in the second harmonic, (normalized to the fundamental), with p less than 0.05 than the older two groups. The decrease of power in the harmonics of the peripheral pulse wave with age may be a useful noninvasive measure of aging and vascular disease.

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