Key result
Power spectral analysis of heart rate variability in healthy older subjects yielded lower and highly variable values, indicating that only normalized values of HF and LF might be useful.
Why the study?
What are the normal values and reliability of power spectral analysis of heart rate variability in healthy subjects over 60 years old?
Observational
What are the normal values and reliability of power spectral analysis of heart rate variability in healthy subjects over 60 years old?
Answers are grounded in this paper and cite their sources.
HRV values in healthy older adults are lower and highly variable, suggesting that raw HRV metrics may be less reliable and normalized HF and LF values should be used.
Power spectral analysis of heart rate variability (HRV) provides a non-invasive method of estimating cardiac autonomic nerve activity. It has been reported that HRV decreases with age. The purpose of this study was to assess the values of and determine the reliability of HRV in healthy older people. The study found lower and highly variable values of HRV. It was concluded that the reliability of HRV in older subjects might need to be reinvestigated and only normalized values of HF and LF might be useful. Larger study groups and different recording periods of HRV are needed.
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Ergün et al. (2008) conducted an observational in Healthy older people. Power spectral analysis of heart rate variability was evaluated on Values and reliability of heart rate variability. Power spectral analysis of heart rate variability in healthy older subjects yielded lower and highly variable values, indicating that only normalized values of HF and LF might be useful.
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