NDLI: The effects of low heart rates on frequency domain carotid-radial transfer functions modeling

Content Provider	IEEE Xplore Digital Library
Author	Zhu, Jieyi Zhu, Changan Zhang, Yongliang Hu, Fusong Sun, Yining
Copyright Year	2015
Description	Author affiliation: Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China (Zhu, Jieyi; Zhu, Changan) \|\| Research Center for Information Technology for Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, China (Zhang, Yongliang; Hu, Fusong; Sun, Yining)
Abstract	The transfer function was a common method to calculate central pressure. This paper was to investigate the effects of low heart rate on carotid-radial transfer function modeling. Sixty subjects aged 25–85 (66±13.60 years) were studied and divided into 3 heart rates groups (Group1: 45–55 beats/min, Group2: 55–65 beats/min, Group3: 65–75 beats/min). In our estimation, we established the frequency techniques based the transfer function with its harmonics varied from 1–4th to 1–10th. The accuracy of the transfer function was evaluated by the index MSD (mean square difference) between measured central pressure waveforms' amplitude and reconstructed waveforms from the transfer function. For the Group2 (55–65 beats/min), the transfer function fitting index MSD decreased from 4.30 to 0.72, as the transfer function harmonics varied from 1–4th to 1–10th. For Group3 (65–75 beats/min), the MSD changed from 3.22 to 0.53 as the transfer function harmonics varied from 1–4th to 1–10th. When for Group1 (45–55 beats/min), the MSD changed from 4.81 to 0.71 as the transfer function harmonics varied from 1–4th to 1–10th. In summary, it was indicated that among those low heart rates people, the 45–55 and 55–65 beats/min heart rates persons need 1–9th to 1–10th harmonic transfer functions, while the 65–75 beats/min heart rates persons could adapt 1–4th to 1–8th harmonic transfer functions. Among 45–75 beats/min patients, higher heart rates persons' reliance on 1–10th harmonic transfer functions decreased.
Starting Page	1184
Ending Page	1188
File Size	515880
Page Count	5
File Format	PDF
e-ISBN	9781467390989
DOI	10.1109/CISP.2015.7408060
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heart rate Frequency domain Frequency-domain analysis Central pressure Transfer Functions Transfer functions Estimation Heart Rates Harmonic analysis Pressure measurement Mathematical model
Content Type	Text
Resource Type	Article

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