Evidence that the information entropy estimating the nonlinear variability of human sinusial R-R intervals shows a circadian rhythm

Cugini P; Bernardini F; Cammarota C; Cedrone L; Curione M; Danese C; Proietti E

Cugini P et al.

Evidence that the information entropy estimating the nonlinear variability of human sinusial R-R intervals shows a circadian rhythm

Journal of Clinical and Basic Cardiology 1999; 2 (2): 275-278

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Maximize View	Zirkadianer Rhythmus Figure 1: Mean chronograms provided by conventional parametric biometry applied to the hourly-qualified values of the sinusal R-R interval, heart rate and information entropy measurement in clinically healthy subjects Keywords: blood pressure, Blutdruck, chronogram, Chronogramm, Diagramm, Entropie, entropy, heart rate, Herzfrequenz


Maximize View	Zirkadianer Rhythmus Figure 2: Mean cosinograms provided by the three-component harmonic method applied to the hourly-qualified values of the sinusal R-R interval, heart rate and information entropy measurement in clinically healthy subjects Keywords: blood pressure, Blutdruck, cosinogram, Cosinogramm, Diagramm, Entropie, entropy, heart rate, Herzfrequenz