Heart Rate Variability in Response to Psychological Test in Hand-Arm Vibration Syndrome Patients Assessed by Frequency Domain Analysis.

Laskar, Shawkatuzzaman; Iwamoto, Mieko; Toibana, Norikuni; Morie, Takako; Wakui, Tadaaki; Harada, Noriaki

doi:10.2486/indhealth.37.382

Cited by 5 publications

(2 citation statements)

References 30 publications

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“…Previous studies have reported that low frequency (LF: 0.04-0.15 Hz) changes represent activity in the cardiac sympathetic nervous system (SNS), high frequency (HF: 0.15-0.40 Hz) changes represent the activity of the cardiac PNS, and the LF/HF ratio represents the balance of the cardiac ANS [18]. In 1999, Laskar et al compared the changes in LF, HF and LF/HF ratio during deep breathing in hand-arm vibration syndrome patients and healthy control subjects [19]. In addition, it is also reported that the HF power increased significantly and the LF/HF ratio decreased significantly during Zen meditation [20].…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Interventions on Cardiac Regulation Using Fuzzy Entropy

Tian

Song

2019

IEEE Access

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Although psychological distress is associated with heart rate variability (HRV) and can be improved by interventions, few studies compared the effects of different interventions on cardiac regulation and the changes of the complexity of HRV in pre-, during-, and post-intervention phases. In this paper, 18 healthy young participants were recruited to investigate the effects of deep breathing, meditation, and video-watching tasks. The respiration (RSP) and electrocardiogram (ECG) signals were simultaneously recorded. Fuzzy entropy (FuzzyEn) was applied to quantify the complexity of HRV in pre-, during-, and posttask phases. The results showed that the FuzzyEn value of HRV in the during-task phase was significantly lower than that in the pre-task phase in deep breathing, video-watching, and meditation tasks, which might result from the effect of cardiorespiratory coupling (CRC), brain-heart coupling (BHC), and the combined effect of CRC and BHC, respectively. There were also significant increases of the FuzzyEn value in the posttask phase than the during-task phase in the deep breathing and meditation tasks, while the lower FuzzyEn value in the post-task phase than during-task phase only occurred in the video-watching task, which might result from that watching video had a more lasting impact on HRV than the other two tasks due to the brain memory. The method and indicator provide the evidence of cardiac rhythm changes after different interventions, and further research was needed to promote the clinical application. INDEX TERMS Brain-heart coupling, cardiorespiratory coupling, fuzzy entropy, heart rate variability, intervention.

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Section: Introductionmentioning

confidence: 99%

Effects of Different Interventions on Cardiac Regulation Using Fuzzy Entropy

Tian

Song

2019

IEEE Access

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“…It has been suggested in some studies that the autonomic nervous function, besides the peripheral circulation, peripheral nervous and musculoskeletal systems, might be affected due to exposure to hand-arm vibration and was assessed previously in hand-arm vibration syndrome (HAVS) patients by means of time domain analysis of heart rate variation, and measuring levels of plasma catecholamines and cyclic nucleotides [3][4][5][6][7] . It was observed that cold exposure activates the sympathetic nervous system to a higher degree in subjects with HAVS than in controls [8][9][10] .…”

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confidence: 99%

Heart Rate Variation and Urinary Catecholamine Excretion in Response to Acute Psychological Stress in Hand‐Arm Vibration Syndrome Patients

Iwamoto

Nakamoto

et al. 2004

Journal of Occupational Health

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School of Medicine-The aim of this study was to e v a l u a t e h e a r t r a t e v a r i a t i o n a n d u r i n a r y catecholamines in response to acute psychological stress in hand-arm vibration syndrome (HAVS) patients and healthy controls. LF% (indicator of both the sympathetic and parasympathetic nervous activity), HF% (indicator of the parasympathetic nervous activity) and their ratio LF/HF (indicator of sympathovagal b a l a n c e ) w e r e c a l c u l a t e d f r o m s h o r t -t e r m electrocardiographic data from 16 HAVS patients and 14 healthy controls before and immediately after exposure to acute psychological stress. Urinary catecholamines (norepinephrine, epinephrine and dopamine) were analyzed from urine samples collected from every subject during rest and after exposure. The LF% and LF/HF of the patients significantly increased after exposure. The after exposure LF/HF of the patients was significantly greater than that of the controls. The amount of norepinephrine in the patients significantly increased after exposure. The after exposure amount of norepinephrine and epinephrine in the patients were significantly greater than the respective amount of the controls. The results of the present study indicated the predominance of sympathetic tone in the cardiac sympathovagal balance and greater sensitivity of the sympathoadrenal medullary system in response to acute psychological stress in the patients than in the healthy controls.

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Current pathophysiological views on vibration-induced Raynaud's phenomenon

Stoyneva

Lyapina

Tzvetkov

et al. 2003

Cardiovascular Research

110

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This review attempts to summarize and discuss contemporary pathogenetic views on vibration-induced Raynaud's phenomenon assuming its multifactorial etiology. An increase in central and peripheral sympathetic nervous activity is discussed based on different physiological indicators of autonomic dysfunction and sympathetic hyperactivity. Local acral vasodysregulation is considered. Receptor and nerve endings dysfunction presented with predominance of alpha(2)-receptor function in the digital arteries and neuronal loss in those digital cutaneous perivascular nerves containing calcitonin gene-related peptide result in deficiency of endogenous release of this powerful vasodilator. Endothelial damage and dysregulation induced by vibration and increased shear stresses are demonstrated by the elevated plasma level of thrombomodulin and of von Willebrand factor and reduced endothelium-dependent vasodilator responses. The concentrations of endothelin-1 are high, the highest being in most advanced stages. Decreased plasma thiol level, indicating increased production and activity of free radicals, contribute to vasospastic paroxysms in vibration white finger patients. Dysbalance of local vasoactive factors with opposing effects on vascular smooth muscle like endothelin and nitric oxide, endothelin and calcitonin gene-related peptide, nitric oxide and superoxide anion are discussed. Disturbed smooth muscle response is supposed. Changes in hemostasis, fibrinolysis and hemorrheology, activation of blood cells with erythrocyte hyperaggregation and red cell hypodeformability, platelet aggregation with increased release of vasoconstricting thromboxane A(2) and serotonin as well as leukocyte activation, entrapment within capillaries and post-capillary venules and increased reactive oxygen species and lysosomal lytic enzymes release might also contribute to digital vasospasms and tissue damage. Elevated soluble intercellular adhesion molecule-1 levels involved in the adherence of leukocytes to endothelium and to other leukocytes have been found in patients with hand-arm vibration syndrome.

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Heart Rate Variability in Response to Psychological Test in Hand-Arm Vibration Syndrome Patients Assessed by Frequency Domain Analysis.

Cited by 5 publications

References 30 publications

Effects of Different Interventions on Cardiac Regulation Using Fuzzy Entropy

Effects of Different Interventions on Cardiac Regulation Using Fuzzy Entropy

Heart Rate Variation and Urinary Catecholamine Excretion in Response to Acute Psychological Stress in Hand‐Arm Vibration Syndrome Patients

Current pathophysiological views on vibration-induced Raynaud's phenomenon

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