Estimation of irregularity of heart rate day and night

Ilona Rachnova

Abstract


Estimationof irregularity of heart rate day and nightI. Basov, I. Rachnova, A. Stankus. Department of Mathematics andStatistics, Klaipeda University, Lithuania  Department of Medical Technologies, Klaipeda University,LithuaniaThe goal of study was the comparison of heartrate nonlinear parameter such as RR-interval mean, Poincare plot indexes,entropy and scaling exponent. RR-intervals records of 60 subjects in activephase (wakeful) and passive phase (sleep) was investigated. The resultsevidenced that there is a difference  indata day and night.

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