title: Power spectral analysis of heart rate variability: normal values of subjects over 60 years old.
abstract: 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.
authors.affiliation: Department of Neurology, Ministry of Health, Ankara Education and Research Hospital, Ankara, Turkey. ufukergun@yahoo.com
authors.forename: Ufuk
authors.initials: U
authors.lastname: Ergun
authors.forename: Mehmet
authors.initials: M
authors.lastname: Demirci
authors.forename: Gülay
authors.initials: G
authors.lastname: Nurlu
authors.forename: Ferhan
authors.initials: F
authors.lastname: Komürcü
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001341:Autonomic Nervous System / Q000502:physiology*; D003943:Diagnostic Techniques, Neurological / Q000592:standards*; D004562:Electrocardiography; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D012815:Signal Processing, Computer-Assisted; D013057:Spectrum Analysis / Q000379:methods*; D018709:Statistics, Nonparametric