scholarly journals Measuring the effects of night-shift work on cardiac autonomic modulation: an appraisal of heart rate variability metrics

2020 ◽  
Vol 33 (4) ◽  
pp. 409-425 ◽  
Author(s):  
Anne Fink
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Shift Work ◽  
Night Shift ◽  
Autonomic Modulation ◽  
Night Shift Work ◽  
Cardiac Autonomic Modulation

scholarly journals Elevated Blood Pressure, Decreased Heart Rate Variability and Incomplete Blood Pressure Recovery after a 12‐hour Night Shift Work

2008 ◽  
Vol 50 (5) ◽  
pp. 380-386 ◽  
Author(s):  
Ta‐Chen Su ◽  
Lian‐Yu Lin ◽  
Dean Baker ◽  
Peter L. Schnall ◽  
Ming‐Fong Chen ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Shift Work ◽  
Night Shift ◽  
Pressure Recovery ◽  
Elevated Blood Pressure ◽  
Elevated Blood ◽  
Night Shift Work

Efeito da manipulação vertebral sobre a modulação autonômica cardíaca

2016 ◽  
Vol 17 (5) ◽  
pp. 498
Author(s):  
Alyssa Conte Da Silva ◽  
Juliana Falcão Padilha ◽  
Jefferson Luiz Brum Marques ◽  
Cláudia Mirian De Godoy Marques
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Spinal Manipulation ◽  
Autonomic Modulation ◽  
Autonomic Nervous ◽  
Cardiac Autonomic Modulation

Introdução: Existem poucos estudos que evidenciam a manipulação vertebral relacionada à modulação autonômica cardíaca. Objetivo: Revisar a literatura sobre os efeitos da manipulação vertebral sobre a modulação autonômica cardíaca. Métodos: Foi realizada uma busca bibliográfica nas bases de dados da saúde Medline, Pubmed e Cinahl, no período correspondido entre setembro e novembro de 2014. Foram utilizados os descritores em inglês Spinal Manipulation, Cardiac Autonomic Modulation, Autonomic Nervous System, Heart Rate Variability, além de associações entre eles. Resultados: Foram encontrados 190 artigos, sendo excluídos 39 por serem repetidos, restando 151. Destes, 124 não se encaixaram nos critérios de inclusão e após leitura crítica e análise dos materiais foram selecionados 7 artigos. Grande parte dos estudos revelou que a manipulação da coluna, independente do segmento, demonstra alterações autonômicas, tanto em nível simpático quanto parassimpático. Conclusão: Existem diferentes metodologias para avaliação da modulação autonômica cardíaca, sendo a Variabilidade da Frequência cardíaca através do eletrocardiograma a mais utilizada. A manipulação vertebral exerceu influência, na maioria dos artigos, sobre a modulação autonômica cardíaca.Palavras-chave: manipulação da coluna, sistema nervoso autônomo, variabilidade da frequência cardíaca. 

scholarly journals Cortisol Levels and Autonomic Control of Heart Rate in Healthy Subjects

2017 ◽  
Vol 17 (2) ◽  
pp. 5-14 ◽  
Author(s):  
Milana Drumond Ramos Santana ◽  
Eli Carlos Martiniano ◽  
Larissa Raylane Lucas Monteiro ◽  
Maria Do Socorro Santos De Oliveira ◽  
Vitor E. Valenti ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Salivary Cortisol ◽  
Healthy Subjects ◽  
Autonomic Control ◽  
Autonomic Modulation ◽  
Cardiac Autonomic Modulation ◽  
Cortisol Levels ◽  
Modulation Methods

AbstractIntroduction: There is an increase in level of stress in the general population because of the social, personal and professional demands. Currently, there are only simple tools that can safely measure this stress such as levels of cortisol and heart rate variability (HRV). Objective: To analyze the relationship between salivary cortisol and the cardiac autonomic modulation. Methods: A total of fifty-one male and female subjects between 18 and 40 years old were evaluated. Saliva collection was achieved for the salivary cortisol dosage. The collection was performed through the SalivetteR tube. After this collection, the median cortisol levels (0.24 ug/dl) were analyzed and the volunteers were divided into two groups: i) cortisol below the mediane ii) cortisol above the median. After this division, each group consisted of 25 volunteers and then was verified the following information: age, gender, weight, height, body mass index (BMI), blood pressure. Shortly thereafter was assessment of cardiac autonomic modulation por meio da HRV. The Polar RS800cx heart rate receiver was placed on the chest of the volunteers, in the vicinity of the distal third of the sternum. The volunteers were instructed to remain in rest with spontaneous breathing in dorsal position for 20 minutes. HRV analysis included geometric, time and frequency domain indices. Results: There were no statistical differences for the two groups regarding systolic and diastolic blood pressure, heart rate, RR intervals or linear and frequency indices for the volunteers. In addition, also there was no correlation the cortisol with the analyzed variables (SAP, p=0.460; DAP, p = 0.270; HR, p = 0.360; RR, p = 0.380; SDNN, p = 0.510; rMSSD, p = 0.660; pNN50, p = 0.820; RRtri, p = 0.170; TINN, p = 0.470; SD1, p = 0.650; SD2, p = 0.500; LF [ms2], p = 0.880; LF [nu], p = 0.970; HF [ms2], p = 0.870; HF [nu], p = 0.960; LF/HF, p = 0.380 Conclusion: Heart rate variability autonomic control was unchanged in healthy subjects with physiological distribution of salivary cortisol levels. There was no association between normal salivary cortisol and resting autonomic regulation of heart rate.

scholarly journals Effects of exercise on cardiac autonomic modulation in children: literature update

2015 ◽  
Vol 28 (3) ◽  
pp. 627-636 ◽  
Author(s):  
Gustavo Henrique de Oliveira Mondoni ◽  
Luiz Carlos Marques Vanderlei ◽  
Bruno Saraiva ◽  
Franciele Marques Vanderlei
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Parasympathetic Nervous System ◽  
Healthy Children ◽  
Autonomic Modulation ◽  
Healthy Development ◽  
Autonomic Nervous ◽  
Cardiac Autonomic Modulation

AbstractIntroduction It is known that physical exercise is beneficial and precipitates adjustments to the autonomic nervous system. However, the effect of exercise on cardiac autonomic modulation in children, despite its importance, is poorly investigated.Objective To bring together current information about the effects of exercise on heart rate variability in healthy and obese children.Methods The literature update was performed through a search for articles in the following databases; PubMed, PEDro, SciELO and Lilacs, using the descriptors “exercise” and “child” in conjunction with the descriptors “autonomic nervous system”, “sympathetic nervous system”, “parasympathetic nervous system” and also with no descriptor, but the key word of this study, “heart rate variability”, from January 2005 to December 2012.Results After removal of items that did not fit the subject of the study, a total of 9 articles were selected, 5 with healthy and 4 with obese children.Conclusion The findings suggest that exercise can act in the normalization of existing alterations in the autonomic nervous system of obese children, as well as serve as a preventative factor in healthy children, enabling healthy development of the autonomic nervous system until the child reaches adulthood.

scholarly journals A study on cardiac autonomic modulation during pregnancy by non-invasive heart rate variability measurement

2014 ◽  
Vol 4 (4) ◽  
pp. 441 ◽  
Author(s):  
PriteshHariprasad Gandhi ◽  
HemantB Mehta ◽  
AshishV Gokhale ◽  
ChetanB Desai ◽  
PradnyaA Gokhale ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Autonomic Modulation ◽  
Cardiac Autonomic Modulation ◽  
Non Invasive ◽  
Heart Rate Variability Measurement

scholarly journals Effect of physical exercise on cardiac autonomic modulation in the elderly: systematic review

2011 ◽  
Vol 10 (2) ◽  
pp. 380-386
Author(s):  
Amilton Da Cruz Santos ◽  
Adriana Sarmento De Oliveira ◽  
Maria Do Socorro Brasileiro-Santos
Keyword(s):  
Systematic Review ◽  
Heart Rate ◽  
Blood Flow ◽  
Heart Rate Variability ◽  
Physical Exercise ◽  
Muscle Blood Flow ◽  
The Elderly ◽  
Autonomic Modulation ◽  
Cardiac Autonomic Modulation ◽  
Insuficiencia Cardiaca

Objetivo: Avaliar as evidências científicas disponíveis a respeito do efeito do exercício físico sobre a resposta vasodilatadora muscular e a modulação autonômica cardíaca em idosos. Métodos: Os artigos selecionados estavam indexados nas bases PubMed/MEDLINE, SCIELO e LILACS. Foram utilizados os descritores “exercise” e “aged”, e as palavras-chaves “vasodilator response muscular”, “muscle blood flow”, “heart rate variability” e “cardiac autonomic modulation”. Resultados: Foram encontrados 1.686 textos, destes, apenas cinco foram considerados elegíveis. Todos avaliaram a modulação autonômica cardíaca e um deles avaliou a resposta vasodilatadora muscular concomitantemente. Conclusões: Esta revisão indica que o exercício físico pode ser eficaz na melhora da modulação autonômica cardíaca em idosos saudáveis e em idosos após evento cardiovascular agudo, com prognóstico favorável, com insuficiência cardíaca e com fibrilação atrial crônica. Aditivamente em idosos com insuficiência cardíaca, o exercício físico também foi eficaz na melhora da resposta vasodilatadora muscular.

Cardiac autonomic modulation assessed by heart rate variability in children with asthma

2020 ◽  
Vol 55 (6) ◽  
pp. 1334-1339
Author(s):  
Ozeia S. Franco ◽  
Abelardo O. S. Júnior ◽  
Luis U. Signori ◽  
Silvio O. M. Prietsch ◽  
Linjie Zhang
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Autonomic Modulation ◽  
Cardiac Autonomic Modulation ◽  
Children With Asthma

scholarly journals Napping on the night shift and its impact on blood pressure and heart rate variability among emergency medical services workers: study protocol for a randomized crossover trial

Trials ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
P. Daniel Patterson ◽  
Leonard S. Weiss ◽  
Matthew D. Weaver ◽  
David D. Salcido ◽  
Samantha E. Opitz ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Emergency Medical Services ◽  
Shift Work ◽  
Crossover Trial ◽  
Night Shift ◽  
Shift Workers ◽  
Randomized Crossover Trial ◽  
Night Shifts

Abstract Background There is an emerging body of evidence that links exposure to shift work to cardiovascular disease (CVD). The risk of coronary events, such as myocardial infarction, is greater among night shift workers compared to day workers. There is reason to believe that repeated exposure to shift work, especially night shift work, creates alterations in normal circadian patterns of blood pressure (BP) and heart rate variability (HRV) and that these alterations contribute to increased risk of CVD. Recent data suggest that allowing shift workers to nap during night shifts may help to normalize BP and HRV patterns and, over time, reduce the risk of CVD. The risk of CVD related to shift work is elevated for emergency medical services (EMS) shift workers due in part to long-duration shifts, frequent use of night shifts, and a high prevalence of multiple jobs. Methods We will use a randomized crossover trial study design with three study conditions. The targeted population is comprised of EMS clinician shift workers, and our goal enrollment is 35 total participants with an estimated 10 of the 35 enrolled not completing the study protocol or classified as lost to attrition. All three conditions will involve continuous monitoring over 72 h and will begin with a 36-h at-home period, followed by 24 total hours in the lab (including a 12-h simulated night shift), ending with 12 h at home. The key difference between the three conditions is the intra-shift nap. Condition 1 will involve a simulated 12-h night shift with total sleep deprivation. Condition 2 will involve a simulated 12-h night shift and a 30-min nap opportunity. Condition 3 will involve a simulated 12-h night shift with a 2-h nap opportunity. Our primary outcomes of interest include blunted BP dipping and reduced HRV as measured by the standard deviation of the inter-beat intervals of normal sinus beats. Non-dipping status will be defined as sleep hours BP dip of less than 10%. Discussion Our study will address two indicators of cardiovascular health and determine if shorter or longer duration naps during night shifts have a clinically meaningful impact. Trial registration ClinicalTrials.gov NCT04469803. Registered on 9 July 2020

scholarly journals Influence of Different Types of Corticosteroids on Heart Rate Variability of Individuals with Duchenne Muscular Dystrophy—A Pilot Cross Sectional Study

Life ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 752
Author(s):  
Rodrigo Martins Dias ◽  
Rosangela Akemi Hoshi ◽  
Luiz Carlos Marques Vanderlei ◽  
Carlos Bandeira de Mello Monteiro ◽  
Mayra Priscila Boscolo Alvarez ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Duchenne Muscular Dystrophy ◽  
Muscular Dystrophy ◽  
Cross Sectional Study ◽  
Control Group ◽  
Autonomic Modulation ◽  
Sectional Study ◽  
Cross Sectional ◽  
Cardiac Autonomic Modulation

Individuals with Duchenne Muscular Dystrophy (DMD) have an impairment of cardiac autonomic function categorized by parasympathetic reduction and sympathetic predominance. The objective of this study was to assess the cardiac autonomic modulation of individuals with DMD undergoing therapy with Prednisone/Prednisolone and Deflazacort and compare with individuals with DMD without the use of these medications and a typically developed control group. Methods: A cross-sectional study was completed, wherein 40 boys were evaluated. The four treatment groups were: Deflazacort; Prednisone/Prednisolone; no corticoid use; and typical development. Heart Rate Variability (HRV) was investigated via linear indices (Time Domain and Frequency Domain) and non-linear indices Results: The results of this study revealed that individuals with DMD undertaking pharmacotherapies with Prednisolone demonstrated HRV comparable to the Control Typically Developed (CTD) group. In contrast, individuals with DMD undergoing pharmacotherapies with Deflazacort achieved lower HRV, akin to individuals with DMD without any medications, as demonstrated in the metrics: RMSSD; LF (n.u.), HF (n.u.), LF/HF; SD1, α1, and α1/α2, and a significant effect for SD1/SD2; %DET and Ratio; Shannon Entropy, 0 V%, 2 LV% and 2 ULV%. Conclusions: Corticosteroids have the potential to affect the cardiac autonomic modulation in adolescents with DMD. The use of Prednisone/Prednisolone appears to promote improved responses in terms of sympathovagal activity as opposed to Deflazacort.

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