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Title:
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Band-phase-randomized surrogate data reveal high-frequency chaos in heart rate variability |
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Author:
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Cheng Li; Guang-Hong Ding; Guo-Qiang Wu; Chi-Sang Poon |
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Department:
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Harvard University--MIT Division of Health Sciences and Technology |
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Publisher:
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Institute of Electrical and Electronics Engineers |
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Issue Date:
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2010-08 |
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Abstract:
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We propose a new band-phase-randomized surrogate data method to evaluate the chaotic dynamics in the high (HF) and low frequency (LF) bands of heart rate variability (HRV) in healthy subjects. The chaotic strength of normal HRV as assessed by a noise titration assay completely vanished when its power spectrum was phase-randomized over the entire frequency band or the HF band alone, but not the LF band alone. This finding confirms recent evidence that chaotic dynamics in normal HRV is ascribable mainly to the HF component, or respiratory sinus arrhythmia. |
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URI:
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http://hdl.handle.net/1721.1/70842
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Other Identifiers:
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INSPEC Accession Number: 11650078 |
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ISBN:
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978-1-4244-4123-5 |
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ISSN:
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1557-170X |
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Citation:
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Cheng Li et al. “Band-phase-randomized Surrogate Data Reveal High-frequency Chaos in Heart Rate Variability.” IEEE, 2010. 2806–2809. Web.© 2010 IEEE. |
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Version:
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Final published version |
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Terms of Use:
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. |
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Published as:
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http://dx.doi.org/10.1109/IEMBS.2010.5626061
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Journal:
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Proceedings of the 32rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2010 |
