Title :
Breathing modulates fetal heart rate
Author :
Noguchi, Yasuaki ; Dwyer, Gene ; Szeto, Hazel H.
Author_Institution :
Dept. of Pharmacology, Cornell Univ. Med. Coll., New York, NY, USA
Abstract :
To assess the modulation of fetal heart rate (FHR) by breathing movements, the authors investigated the relationship between FHR and fetal breathing rate (FBR). FHR was obtained from the R-R interval of the EKG and FBR from the burst-burst interval of the diaphragmatic electromyogram (EMG). The R-R intervals of EKG and burst-burst interval of the diaphragmatic EMG were determined using a template recognition method. These data were then analyzed in both the frequency and time domains. Frequency analysis was carried out using the linear prediction method with the optimum order. It is confirmed that fetal breathing movements modulate fetal heart-rate variability
Keywords :
bioelectric potentials; electrocardiography; muscle; R-R interval; burst-burst interval; diaphragmatic electromyogram; foetal heart rate modulation; frequency analysis; linear prediction method; template recognition method; Data analysis; Educational institutions; Electromyography; Fetal heart rate; Frequency domain analysis; Heart rate; Humans; Prediction methods; Spectral analysis; Time domain analysis;
Conference_Titel :
Bioengineering Conference, 1989., Proceedings of the 1989 Fifteenth Annual Northeast
Conference_Location :
Boston, MA
DOI :
10.1109/NEBC.1989.36786
