Autonomic Index Management

2005 ◽  
Author(s):  
S. Lifschitz ◽  
M.A. Vaz Salles
Keyword(s):  
Autonomic Index

Kérdö Autonomic Index: Role of Initial Parameters, Areas, and Limitations of the Use

2021 ◽  
Vol 47 (1) ◽  
pp. 23-32
Author(s):  
Yu. E. Vaguine ◽  
S. M. Deunezhewa ◽  
A. A. Khlytina
Keyword(s):  
Autonomic Index

A composite autonomic index as unitary metric for heart rate variability: a proof of concept

2017 ◽  
Vol 47 (3) ◽  
pp. 241-249 ◽  
Author(s):  
Roberto Sala ◽  
Mara Malacarne ◽  
Nadia Solaro ◽  
Massimo Pagani ◽  
Daniela Lucini
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Proof Of Concept ◽  
Autonomic Index

scholarly journals Comparison of Physiological and Biochemical Autonomic Indices in Children with and without Autism Spectrum Disorders

Medicina ◽  
2019 ◽  
Vol 55 (7) ◽  
pp. 346 ◽  
Author(s):  
Remya Bharath ◽  
Shailaja S. Moodithaya ◽  
Shrinivasa U. Bhat ◽  
Amrit M. Mirajkar ◽  
Sumanth B. Shetty
Keyword(s):  
Sympathetic Activity ◽  
Autism Spectrum ◽  
Vagal Activity ◽  
Vanillylmandelic Acid ◽  
Autistic Children ◽  
Autonomic Nervous ◽  
Children With Asd ◽  
Autonomic Index ◽  
Physiological And Biochemical ◽  
Autonomic Indices

Background and objectives: Autism Spectrum Disorder (ASD) is a complex neuro-developmental disorder and it has been suggested that symptoms of ASD are associated with neural networks that regulate the Autonomic Nervous System (ANS). However, the nature of autonomic atypicalities in ASDs remain largely unknown. Measures like Heart Rate Variability (HRV) and urinary Vanillylmandelic Acid (VMA) estimation are sensitive and non-invasive physiological and biochemical indicators of autonomic nervous activity. This study aimed to compare the physiological and biochemical autonomic indices in children with and without ASD. Materials and Methods: In this case-control study, 40 children with autism and 40 Typically Developing (TD) children were recruited. Measures of physiological autonomic index were assessed by the analysis of short term HRV, and the urinary levels of VMA estimation was used as a biochemical autonomic index. Results: Cardiac sympathetic activity assessed by Low Frequency (nu) of HRV was significantly higher in the ASD group in comparison with the TD group (p = 0.006). On the contrary, both the High Frequency (abs) and (nu) of HRV were found to be significantly lower in autistic children (p = 0.034 and p = 0.000) than controls. Autistic children also exhibited a significantly higher level (p = 0.049) of VMA concentration compared to TD children. Conclusion: The study concludes that children with ASD exhibit lower cardio-vagal activity as measured by HRV and increased sympathetic activity as assessed by urinary VMA compared to that of TD children. The core autistic symptoms exhibited by children with ASD could be due to the differences in baseline arousal or stress which might be associated with autonomic dysfunction. Further studies are needed to examine the association of this autonomic dysregulation with ASD symptoms and comorbidities.

CHARACTERSTICS OF HEALTHY MEN HEMODYNAMICS IN A HYPOMAGNETIC ENVIRONMENT

2021 ◽  
Vol 55 (2) ◽  
pp. 63-68
Author(s):  
A.V. Demin ◽  
◽  
A.V. Suvorov ◽  
O.I. Orlov ◽  
◽  
...  
Keyword(s):  
Geomagnetic Field ◽  
Continuous Monitoring ◽  
Cardiac Cycle ◽  
Blood Oxygenation ◽  
Hemoglobin Saturation ◽  
Autonomic Index ◽  
System Functioning ◽  
Parasympathetic Regulation ◽  
Male Subjects ◽  
Made In

Hemodynamics was studied in essentially healthy resting 8 male subjects exposed to an experimental hypomagnetic environment (HME). The cardio-respiratory system functioning was evaluated by 8-hour continuous monitoring of heart rate (HR), blood pressure (BP) fluctuations during every cardiac cycle, Kerdo autonomic index (KAI) and blood oxygenation (SpO2) in the Earth's natural magnetic field and a field attenuated in approximately 1,000 times. Comparative analysis of the measurements made in the control and HME tests elicited different trends. Thus, the HR average reduction amounted to 4 bpm; BP dropped significantly, i.e. diastolic BP by 11 mmHg and systolic BP, 16 mmHg on average. In HME, KAI rose commonly 20 %. Hemoglobin saturation did not change. The paper contains graphic interpretations of the KAI dependence on duration of the HME exposure. Mathematical modeling suggests a physiological interpretation of these results. More often than not sitting at rest in HME reduced substantially the modulating effect of parasympathetic regulation on the cardiovascular system in comparison with the control test in the normal geomagnetic field.

scholarly journals Food Insecurity is Associated with Autonomic Dysfunction Among Latinos with Type 2 Diabetes

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 162-162
Author(s):  
Angela Bermúdez-Millán ◽  
Kagnica Seng ◽  
Richard Feinn ◽  
Rafael Pérez-Escamilla ◽  
Sofia Segura-Pérez ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Heart Rate ◽  
Food Security ◽  
Food Insecurity ◽  
Health Workers ◽  
Household Food Security ◽  
Management Intervention ◽  
Funding Sources ◽  
Autonomic Index

Abstract Objectives Food insecurity (FI) is higher among Latinos than non-Hispanic Whites and associated with risk for type 2 diabetes (T2D). Autonomic nervous system (ANS) dysfunction increases mortality in diabetes. We examined FI and ANS function among Latinos with T2D. Methods Participants were drawn from the CALMS-D (Community Health Workers Assisting Latinos Manage Stress and Diabetes) stress management intervention trial. Inclusion: age 18 years, Latino or Hispanic, Spanish speaking, ambulatory status, T2D 6 months, A1c > 7.0%. Exclusion: medical or psychiatric instability; pain or dysfunction in hands precluding handgrip testing. Measures: FI was assessed with the 6-item US household food security survey module; affirmative responses to > = 1 questions was coded as FI. Six autonomic measures were scored 0 = normal or 1 = abnormal based on published cutoffs and then summed for a total ANS dysfunction index. ANS measures and their normal cutoffs were: 1) metanephrine <350 ug/day; 2) normetanephrine <600 ug/day; 3) cortisol 50–190 ug/day, all from 24-hour urine specimens; 4) 24-hour heart rate variability as reflected in standard deviation of the normal-to-normal (SDNN) heart rate acquired with 3-channel, 7-lead ambulatory electrocardiogram (holter) monitors, 149 +/–39; 5) difference between the highest diastolic blood pressure (DBP) during sustained handgrip and the average DBP at rest, >15 mmHg; and, 6) difference between baseline supine and the minimal BP after standing up, normal = decline in SBP <=20 mmHg and DBP <=10 mmHg. Results N = 35 participated, n = 23 (65.7%) were women, age M = 61.6 (SD = 11.2) years, A1c M = 8.5% (SD = 1.6) and n = 20 (57.1%) used insulin. N = 22 (62.9%) reported FI and n = 25 (71.4%) had at least one abnormal ANS measure. In t-tests, participants with FI had a higher ANS dysfunction index (M = 1.5, SD = 0.9) than patients who were food secure (M = 0.7, SD = 0.8), P = 0.02). Total autonomic index was not related to A1c or insulin use. Conclusions In this Latino sample with T2D, FI was associated with greater ANS dysfunction. Increasing food security may confer autonomic benefits. Funding Sources Supported by National Institute on Minority Health and Health Disparities grant R01MD005879 and American Diabetes Association grant 7–13-TS-31.

PSYCHOPHYSIOLOGICAL ASSESSMENT OF THE LABOR OF MEDICAL WORKERS IN ORGANIZATIONS WITH COVID-19

2021 ◽  
Author(s):  
A.V. Zaitseva ◽  
◽  
V.V. Serikov ◽  
H.T. Oniani ◽  
Keyword(s):  
Cardiovascular System ◽  
Functional State ◽  
Statistical Processing ◽  
Medical Personnel ◽  
Systemic Arterial Pressure ◽  
The Body ◽  
Labor Process ◽  
Stress Factors ◽  
Hazard Class ◽  
Autonomic Index

Abstract. Introduction. High neuro-emotional stress among medical workers in organizations with the leading harmfulness of Covid-19 contributes to the formation of an unfavorable functional state, increases the risks of health disorders. The study of the characteristics of the psychophysiological reactions of the body will allow to substantiate the timing of work in a pandemic, which is quite relevant at the present time. The purpose of the research was, on the basis of comprehensive psychophysiological studies, to study the features of the formation of a functional state in medical personnel working in organizations with COVID-19 under the influence of stress factors of the labor process. Materials and methods. A physiological and hygienic assessment of the intensity of the labor process was carried out, psychophysiological changes were studied during 3 months of work in the «dangerous» zone. Statistical processing of the obtained data was carried out using the statistical programs Statistika 10, Microsoft Excel 2010. Results. The formation of neuropsychic stress in medical workers is reflected in changes in ECG indicators (prolongation of the QT interval, decrease in the voltage of the P and T waves) and systemic arterial pressure, an increase in the endurance coefficient (an indicator of detraining of the cardiovascular system), positive values of the Kerdo autonomic index (predominance of sympathetic influences) after 3 months of work in medical organizations with Covid-19. Conclusions. Nervous and emotional tension at work is the leading professional factor among nurses and doctors working in medical institutions with Covid-19 (hazard class 3, grade 3). Indicators of the cardiovascular system, reflecting the degree of adaptation of the body of medical workers to production activities, can be used to justify different periods of work in organizations with Covid-19.

The ohmic perturbation duration (OPD index), an autonomic index to objective anxiety and pain response

Pain ◽  
1987 ◽  
Vol 30 ◽  
pp. S428 ◽  
Author(s):  
O. Robin ◽  
E. Vernet-Maury ◽  
A. Dittmar ◽  
H. Vinard
Keyword(s):  
Pain Response ◽  
Autonomic Index

Respiratory Sinus Arrhythmia in Blood Phobic Subjects

1997 ◽  
Vol 84 (2) ◽  
pp. 505-506 ◽  
Author(s):  
Alessandro Angrilli ◽  
Michela Sarlo ◽  
Daniela Palomba ◽  
Micaela Schincaglia ◽  
Luciano Stegagno
Keyword(s):  
Heart Rate ◽  
Respiratory Sinus Arrhythmia ◽  
Vagal Activity ◽  
Sinus Arrhythmia ◽  
Control Subjects ◽  
Paced Respiration ◽  
Autonomic Index ◽  
Vagal Influence

12 blood-phobic subjects, selected according to the Feat Survey Schedule and the Mutilation Questionnaire, and 50 control subjects performed a paced respiration task during which heart rate and respiration were recorded. Respiratory Sinus Arrhythmia (RSA) was analyzed as an autonomic index of vagal influence on the heart. Analysis showed a larger RSA in the blood-phobic group than the controls and points to a difference in vagal activity at rest between the groups.

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