ISSN:
1741-0444
Keywords:
Aging
;
Arteriosclerosis
;
Autocorrelation
;
Fourier analysis
;
Photoplethysmography
;
Pulse wave velocity
;
Serum lipid
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
Notes:
Abstract Pulse wave patterns at a finger and a toe are obtained using photoplethysmography. The data recorded at two recording sites are transformed by digital filters into six waveforms and the transmission time of each wave is estimated by the crosscorrelation function. Relationships between the transmission times, age, and parameters obtained from several laboratory tests are examined using multiple regression analysis. The results may be summarised as follows: the power of photoplethysmograms of a finger and a toe is concentrated in the range below 6 or 8 Hz; age correlates highly with the transmission time of a pulse wave rather than with velocity; the multiple correlation coefficients between age and the transmission times is 0·853 in male and 0·866 in female; there are no differences of transmission time among disease types; the correlations between age and other parameters measured by laboratory tests, that is, total cholesterol, phospholipid, triglyceride, β-lipoprotein, are very small.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02441621
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