NDLI: Causal coherence analysis of cardiovascular variables in obese preadolescents and adolescents

Content Provider	IEEE Xplore Digital Library
Author	Javorka, M. Czippelova, B. Turianikova, Z. Lazarova, Z. Tonhajzerova, I. Javorka, K. Baumert, M.
Copyright Year	2015
Description	Author affiliation: Sch. of Electr. & Electron. Eng., Univ. of Adelaide, Adelaide, SA, Australia (Baumert, M.) \|\| Dept. of Physiol., Comenius Univ., Martin, Slovakia (Javorka, M.; Czippelova, B.; Turianikova, Z.; Lazarova, Z.; Tonhajzerova, I.; Javorka, K.)
Abstract	Obesity during adulthood has been associated with cardiovascular disease, but its adverse effects during adolescence are less well established. The aim of this study was to probe cardiovascular control in obese adolescence by studying causal coherence between cardiovascular variables. Sixty minutes of resting ECG and finger blood pressure were recorded in 19 obese and 19 non-obese subjects in the supine position to measure pair-wise spectral coherence in the low frequency band between heart rate, systolic and diastolic blood pressure, pulse pressure, total peripheral resistance and left ventricular ejection time. We observed that causal coherences in {systolic blood pressure → total peripheral resistance} and {left ventricular ejection time → systolic blood pressure} directions were significantly decreased in obese preadolescents and adolescents when compared to the healthy control group, despite the lack of difference in the magnitude of oscillations of cardiovascular variables. In conclusion, causal coherence analysis of cardiovascular variables may give new insight into cardiovascular dysregulation in young obese subjects.
Starting Page	1793
Ending Page	1796
File Size	661668
Page Count	4
File Format	PDF
ISSN	1557170X
e-ISBN	9781424492718
DOI	10.1109/EMBC.2015.7318727
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-08-25
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coherence Obesity Blood pressure Heart Mathematical model Electrocardiography Physiology
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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