Title :
Frequency analysis of the peripheral pulse wave detected in the finger with a photoplethysmograph
Author :
Sherebrin, M.H. ; Sherebrin, R.Z.
Author_Institution :
Dept. of Med. Biophys., Univ. of Western Ontario, London, Ont., Canada
fDate :
3/1/1990 12:00:00 AM
Abstract :
A photoelectric plethysmograph that performs a frequency analysis of the peripheral volume pulse wave using a portable computer is described. 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<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.
Keywords :
biomedical equipment; computerised signal processing; haemodynamics; 10 to 89 yr; age groups; aging; blood volume changes; finger; frequency analysis; fundamental; harmonics; noninvasive measure; peripheral volume pulse wave; photoelectric plethysmograph; portable computer; pulse shape; second harmonic; vascular disease; Aging; Fingers; Frequency; Performance analysis; Portable computers; Power measurement; Power system harmonics; Pulse measurements; Pulse shaping methods; Shape; Adolescent; Adult; Aged; Aged, 80 and over; Aging; Child; Exertion; Female; Fingers; Humans; Male; Middle Aged; Plethysmography; Pulse; Reference Values;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
