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Table 1 Principal frequency components of the R–R interval. Mean frequencies of the first three spectral components of the R–R interval for frequencies below 0.15 Hz.

From: Fine structure of the low-frequency spectra of heart rate and blood pressure

Subject

f1 [Hz]

f2 [Hz]

f3 [Hz]

A

0.026

0.069

0.102

B

0.028

0.073

0.122

C

0.027

0.076

0.122

D

0.022

0.055

0.086

E

0.024

0.062

0.099

F

0.026

0.072

-

G

0.031

0.081

0.116

H

0.028

0.097

0.135

I

0.025

0.095

0.137

J

0.028

0.079

0.129

K

0.025

0.086

0.125

L

0.020

0.073

0.117