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 -