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Association between RR interval and high-frequency heart rate variability acquired during short-term, resting recordings with free and paced breathing.

Abstract:

High-frequency (HF) oscillations in RR interval from 0.15-0.40 Hz are widely accepted as a measure of cardiac vagal outflow but the HF/RR relationship appears complex, particularly with longer RR intervals. The aim of this study was to evaluate the HF/RR interval relationship during free and paced breathing. HF power and mean RR interval length were recorded in 150 men and 120 women (mean age 34.5 +/- 11.4) during 5 min of supine rest with either free or paced (12 cycles min(-1)) breathing. L...

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Publication status:
Published

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Publisher copy:
10.1088/0967-3334/29/7/008

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Institution:
University of Oxford
Department:
Oxford, MSD, Primary Care Health Sciences, PHC-Madox
Role:
Author
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Journal:
Physiological measurement
Volume:
29
Issue:
7
Pages:
795-802
Publication date:
2008-07-05
DOI:
EISSN:
1361-6579
ISSN:
0967-3334
URN:
uuid:88363c12-61b8-42dd-b38b-7f8353e1dc38
Source identifiers:
116140
Local pid:
pubs:116140

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