Accepted author manuscript, 2.72 MB, PDF document
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Modelling the dynamics of angles of human RR intervals
AU - Janson, N. B.
AU - Balanov, A. G.
AU - Anishchenko, V. S.
AU - McClintock, Peter V. E.
PY - 2001/8
Y1 - 2001/8
N2 - Heart rate variability (HRV) data from young healthy humans is expanded into two components, namely, the angles and radii of a map of R-R intervals. It is shown that, for most subjects at rest breathing spontaneously, the map of successive angles reveals a highly deterministic structure after the frequency range below about 0.05 Hz has been filtered out. However, no obvious low-dimensional structure is found in the map of successive radii. A recently proposed model describing the map of angles for a periodic self-oscillator under external periodic and quasiperiodic forcing is successfully applied to model the dynamics of such angles.
AB - Heart rate variability (HRV) data from young healthy humans is expanded into two components, namely, the angles and radii of a map of R-R intervals. It is shown that, for most subjects at rest breathing spontaneously, the map of successive angles reveals a highly deterministic structure after the frequency range below about 0.05 Hz has been filtered out. However, no obvious low-dimensional structure is found in the map of successive radii. A recently proposed model describing the map of angles for a periodic self-oscillator under external periodic and quasiperiodic forcing is successfully applied to model the dynamics of such angles.
KW - heart rate variability
KW - modelling
KW - angles of return times
KW - circle map
KW - synchronization
U2 - 10.1088/0967-3334/22/3/313
DO - 10.1088/0967-3334/22/3/313
M3 - Journal article
VL - 22
SP - 565
EP - 579
JO - Physiological Measurement
JF - Physiological Measurement
SN - 0967-3334
IS - 3
ER -