PMID: 12787985Jun 6, 2003Paper

The influence of mean heart rate on measures of heart rate variability as markers of autonomic function: a model study

Medical Engineering & Physics
Hung-Wen ChiuTsair Kao

Abstract

Some studies have demonstrated that the assessments of autonomic activities from the alterations of heart rate variations (HRVs) after autonomic blockade and during exercise of high intensity by the spectral analysis of HRV seemed inconsistent with actual situation. The inconsistency is probably caused by the contributions of fluctuating magnitudes and mean levels of autonomic activities on HRV having not been clarified. The alterations of HRV after autonomic blockade and during exercise of high intensity using a mathematical model were simulated. The autonomic activity in normal condition was assumed first according to some experimental evidence. Then autonomic activities after sympathetic blockade, vagal blockade and during exercise of high intensity were appropriately adjusted accordingly. The HRVs in response to these given autonomic activities were simulated. We found that the effect on HRV influenced by the mean level of autonomic activity is helpful to explain alterations of HRV in these conditions. After vagal blockade, a largely reduced low frequency (LF) power could be caused by the reduced mean heartbeat interval induced by a decreased mean level of vagal activity. Increased low and high frequency powers after sympat...Continue Reading

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Citations

Apr 1, 2014·Mathematical Biosciences·Jeremy D ScheffIoannis P Androulakis
Jan 7, 2016·Frontiers in Physiology·Jakub S GąsiorMarek J Dąbrowski
Nov 7, 2009·Gastroentérologie Clinique Et Biologique·B Bonaz, J-M Sabate
Feb 22, 2011·Alcoholism, Clinical and Experimental Research·Magdalena RomanowiczVictor M Karpyak
Jun 2, 2009·Autonomic Neuroscience : Basic & Clinical·Karen PorterLinda F Hayward
Apr 29, 2016·The Journal of Obstetrics and Gynaecology Research·Akemi NakagakiMotohiko Sato
Apr 19, 2017·High Altitude Medicine & Biology·Angus SutherlandJamie Hugo Macdonald
Jan 24, 2007·Hypertension·Alexander JonesDavid M Simpson
Aug 3, 2017·Einstein·Julia Silva-E-OliveiraFabianne Furtado
Jun 28, 2012·Physiological Measurement·Melitta A McNarry, Michael J Lewis
Dec 12, 2018·Pharmacology, Biochemistry, and Behavior·Elizabeth RalevskiMargaret Altemus

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