Linear and Complex Measures of Heart Rate Variability during Exposure to Traffic Noise in Healthy Women

Previous studies have described significant impact of different types of noise on the linear behavior of heart rate variability (HRV). However, there are few studies regarding the complexity of HRV during exposure to traffic noise. In this study, we evaluated the complexity of HRV during traffic noi...

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Main Authors: Myrela Alves, David M. Garner, Anne M. G. G. Fontes, Luiz Vinicius de Alcantara Sousa, Vitor E. Valenti
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Complexity
Online Access:http://dx.doi.org/10.1155/2018/2158391
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author Myrela Alves
David M. Garner
Anne M. G. G. Fontes
Luiz Vinicius de Alcantara Sousa
Vitor E. Valenti
author_facet Myrela Alves
David M. Garner
Anne M. G. G. Fontes
Luiz Vinicius de Alcantara Sousa
Vitor E. Valenti
author_sort Myrela Alves
collection DOAJ
description Previous studies have described significant impact of different types of noise on the linear behavior of heart rate variability (HRV). However, there are few studies regarding the complexity of HRV during exposure to traffic noise. In this study, we evaluated the complexity of HRV during traffic noise exposure. We analyzed 31 healthy female students aged between 18 and 30 years. Volunteers remained at rest seated under spontaneous breathing during 10 minutes with an earphone turned off, and then they were exposed to traffic noise through an earphone for a period of 10 minutes. The traffic noise was recorded from a very busy city street and the sound was comprised of car, bus, and trucks engines and horn (71–104 dB). We observed no significant changes in the linear analysis of HRV. CFP3 (Cohen’s d=1.28, large effect size) and CFP6 (Cohen’s d=1.11, large effect size) parameters of chaotic global analysis and Shannon (Cohen’s d=1.13, large effect size), Renyi (Cohen’s d=1.06, large effect size), and Tsallis (Cohen’s d=1.14, large effect size) entropies significantly increased p<0.005 during traffic noise exposure. In conclusion, traffic noise under laboratory conditions increased the complexity of HRV through chaotic global analysis and some measures of entropy in healthy females.
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spelling doaj-art-14b993f87afc44579d8a23fd61fe4c9d2025-08-20T02:02:02ZengWileyComplexity1076-27871099-05262018-01-01201810.1155/2018/21583912158391Linear and Complex Measures of Heart Rate Variability during Exposure to Traffic Noise in Healthy WomenMyrela Alves0David M. Garner1Anne M. G. G. Fontes2Luiz Vinicius de Alcantara Sousa3Vitor E. Valenti4Centro de Estudos do Sistema Nervoso Autônomo, Departamento de Fonoaudiologia, Faculdade de Filosofia e Ciências, UNESP, Marília, SP, BrazilCardiorespiratory Research Group, Department of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Headington, Oxford OX3 0BP, UKCentro de Estudos do Sistema Nervoso Autônomo, Departamento de Fonoaudiologia, Faculdade de Filosofia e Ciências, UNESP, Marília, SP, BrazilLaboratório de Epidemiologia e Análises de Dados, Faculdade de Medicina do ABC (FMABC), Santo Andre, SP, BrazilCentro de Estudos do Sistema Nervoso Autônomo, Departamento de Fonoaudiologia, Faculdade de Filosofia e Ciências, UNESP, Marília, SP, BrazilPrevious studies have described significant impact of different types of noise on the linear behavior of heart rate variability (HRV). However, there are few studies regarding the complexity of HRV during exposure to traffic noise. In this study, we evaluated the complexity of HRV during traffic noise exposure. We analyzed 31 healthy female students aged between 18 and 30 years. Volunteers remained at rest seated under spontaneous breathing during 10 minutes with an earphone turned off, and then they were exposed to traffic noise through an earphone for a period of 10 minutes. The traffic noise was recorded from a very busy city street and the sound was comprised of car, bus, and trucks engines and horn (71–104 dB). We observed no significant changes in the linear analysis of HRV. CFP3 (Cohen’s d=1.28, large effect size) and CFP6 (Cohen’s d=1.11, large effect size) parameters of chaotic global analysis and Shannon (Cohen’s d=1.13, large effect size), Renyi (Cohen’s d=1.06, large effect size), and Tsallis (Cohen’s d=1.14, large effect size) entropies significantly increased p<0.005 during traffic noise exposure. In conclusion, traffic noise under laboratory conditions increased the complexity of HRV through chaotic global analysis and some measures of entropy in healthy females.http://dx.doi.org/10.1155/2018/2158391
spellingShingle Myrela Alves
David M. Garner
Anne M. G. G. Fontes
Luiz Vinicius de Alcantara Sousa
Vitor E. Valenti
Linear and Complex Measures of Heart Rate Variability during Exposure to Traffic Noise in Healthy Women
Complexity
title Linear and Complex Measures of Heart Rate Variability during Exposure to Traffic Noise in Healthy Women
title_full Linear and Complex Measures of Heart Rate Variability during Exposure to Traffic Noise in Healthy Women
title_fullStr Linear and Complex Measures of Heart Rate Variability during Exposure to Traffic Noise in Healthy Women
title_full_unstemmed Linear and Complex Measures of Heart Rate Variability during Exposure to Traffic Noise in Healthy Women
title_short Linear and Complex Measures of Heart Rate Variability during Exposure to Traffic Noise in Healthy Women
title_sort linear and complex measures of heart rate variability during exposure to traffic noise in healthy women
url http://dx.doi.org/10.1155/2018/2158391
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