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UBC Theses and Dissertations
1/F components in short term heart rate variability signals Yuan, Yeh
Abstract
When analyzing short term heart rate variability (HRV) signals using the FFT technique, the linear trend appears to be perfect 1/f signals. The non-linear trend in short term HRV signals produces the regression 1/f components. De-trending the data using a moving average is an effective technique for removing the 1/f components. However, though removing the trend may sometimes produce clearer spectral pictures of respiratory sinus arrhythmia or the breathing frequency, it has little impact otherwise. The linear trend is fractal, but not chaotic. The 1/f components in the signal does not imply the signal fractal; nor does a fractal signal implies it chaotic. No evidence in the present research suggests that the non-linear trend is fractal, nor is there evidence to suggest that the HRV signal is fractal, or chaotic.
Item Metadata
Title |
1/F components in short term heart rate variability signals
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1997
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Description |
When analyzing short term heart rate variability (HRV) signals using the FFT technique,
the linear trend appears to be perfect 1/f signals. The non-linear trend in short term HRV
signals produces the regression 1/f components. De-trending the data using a moving
average is an effective technique for removing the 1/f components. However, though
removing the trend may sometimes produce clearer spectral pictures of respiratory sinus
arrhythmia or the breathing frequency, it has little impact otherwise. The linear trend is
fractal, but not chaotic. The 1/f components in the signal does not imply the signal fractal;
nor does a fractal signal implies it chaotic. No evidence in the present research suggests
that the non-linear trend is fractal, nor is there evidence to suggest that the HRV signal is
fractal, or chaotic.
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Extent |
1663916 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-03-21
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0087907
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
1997-11
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.