NDLI: Validity concerns of common heart-rate variability indices

Content Provider	IEEE Xplore Digital Library
Author	Friedman, B.H. Allen, M.T. Christie, I.C. Santucci, A.K.
Copyright Year	1983
Abstract	Time- and frequency-domain analyses of HRV have provided researchers with important measures of cardiac vagal activity. Stationarity is of theoretical importance for such analyses in the frequency domain but may not be of practical significance in any particular data set. It has been argued that if a stationarity test is available, it should be used. On the other hand, it is also possible that the RSA is quite robust to nonstationarity; the spectral data support that contention. Furthermore, procedures that correct for nonstationary data segments may compromise the representativeness of the data set. With regard to the time domain, MSD is advantageous in that it is conceptually and computationally simple, does not require respiration data, and under many conditions may be a reasonable alternative to HF spectral power or RSA. All told, the selection of cardiac vagal control indices and use of correction procedures should be based upon experimental situation and availability to the researcher, rather than orthodox adherence to idealized standards.
Page Count	6
File Size	430433
Starting Page	35
Ending Page	40
File Format	PDF
ISSN	07395175
Volume Number	21
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-07-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heart rate variability Heart rate Spectral analysis Biomedical measurements Frequency measurement Frequency domain analysis Psychology Time domain analysis Hafnium Time measurement
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering

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