| Assessing Methods of Heart Rate Variability |
| Ki-Jong Park, and Heejeong Jeong |
| Department of Neurology, Institute of Health Science, Gyeongsang National University School of Medicine, Jinju, Korea |
| Corresponding Author:
Ki-Jong Park ,Tel: +82-55-750-8077, Fax: +82-55-755-1709 , Email: pkjong@gnu.ac.kr |
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Received November 2, 2014 Accepted December 12, 2014 |
| Copyright © 2014 The Korean Society of Clinical Neurophysiology |
| This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium,
provided the original work is properly cited. |
| ABSTRACT |
|
Heart rate variability is significantly associated with cardiovascular complications in various neurological disorders with cardiac impairment. Measures of spontaneous heart rate variability might be different from provocating tests of heart rate variability such as deep breathing and Valsava maneuver. Methods for analysis are divided into time domain methods and frequency domain methods. There are standard deviation of NN interval, standard deviation of average NN interval, root mean square of the successive differences, NN50, and pNN50 in time domain methods. Frequency domain bands can be divided into very low, low, and high frequency. Each variables are influenced by sympathetic and/or parasympathetic activity. |
| Key words:
Heart rate, Autonomic nervous system, Cardiovascular abnormalities |
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