Publications scientifiques
Vous pouvez trouver des publications en choisissant une catégorie ou un mot-clé. Tous les articles de cette catégorie ou mots-clefs apparaîtront ci-dessous.
Catégories
Mots-clefs
Catégories
Mots-clefs
Short-Term Effects of Heart Rate Variability Biofeedback on Working Memory
Drawing upon the well-documented impact of long-term heart rate variability biofeedback (HRVB) on psychophysiological responses, this study seeks to explore the short-term effects arising from a single HRVB session during and after paced breathing exercise. The research aligns with the neurovisceral integration model, emphasizing the link between heart rate variability (HRV) levels and cognitive performance. Therefore, a randomized controlled trial employing a between-subjects design was conducted with 38 participants. Each
en savoir plus...Psychophysiological coherence training to moderate air traffic controllers’ fatigue on rotating roster
The nature of the current rotating roster, providing 24-h air traffic services over five irregular shifts, leads to accumulated fatigue which impairs air traffic controllers’ cognitive function and task performance. It is imperative to develop an effective fatigue risk management system to improve aviation safety based upon scientific approaches. Two empirical studies were conducted to address this issue. Study 1 investigated the mixed effect of circadian rhythm disorders and resource depletion on controllers’ accumulated fatigue. Then, study 2 proposed a potential biofeedback solution of quick coherence technique which can mitigate air traffic controllers’ (ATCOs’) fatigue while on
en savoir plus...Heart Rate Variability Biofeedback to Treat Anxiety in Young People With Autism Spectrum Disorder: Findings From a Home-Based Pilot Study
Background: People with autism spectrum disorder (ASD) frequently experience high levels of anxiety. Despite this, many clinical settings do not provide specialist ASD mental health services, and demand for professional support frequently outstrips supply. Across many sectors of health, investigators have explored digital health solutions to mitigate demand and extend the reach of professional practice beyond traditional clinical settings.
en savoir plus...
Following the Rhythm of the Heart: HeartMath Institute’s Path to HRV Biofeedback
This paper outlines the early history and contributions our laboratory, along with our close advisors and collaborators, has made to the field of heart rate variability and heart rate variability coherence biofeedback. In addition to the many health and wellness benefits of HRV feedback for facilitating skill acquisition of self-regulation techniques for stress reduction and performance enhancement, its applications for increasing social coherence and physiological synchronization among groups is also discussed. Future research directions and applications are also suggested.
en savoir plus...Psychophysical Coherence Training Regulating Air Traffic Controller's Heart Rate Variability and Resilience to Fatigue
Abstract. Heart Rate Variability (HRV) can reflect individuals’ cognitive workload objectively. HRV measurement is a non-invasive method to evaluate relevant physiological changes in a human body. Physiological changes and cognitive processes are associated with the cardiac dynamic autonomic control, and thus to influence individuals’ ability to cope with fatigue and achieve resilience. As a dynamic process to be learned, resilience can be formed and improved through Quick Coherence Training in a short time. To study the regulatory effects of
en savoir plus...Does Heart Rate Variability Biofeedback Enhance Executive Functions Across the Lifespan? A Systematic Review
Abstract
The scope of this systematic review was to summarize the existing literature on the effects of heart rate variability biofeedback (HRV-BF) on executive functions (EFs) across the lifespan. Specifically, it aimed to investigate the factors that may affect the efficacy of HRV-BF interventions, such as the study population, duration and intensity of the intervention, or the technical equipment. This review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Studies that
The effect of HRVB training on young soccer players' skill performance
ABSTRACT
The present study aimed to evaluate the influence of heart rate variability biofeedback (HRVB) training on selected soccer skills performance. The objective of this study was to evaluate the effect of HRVB on soccer players’ reactive motor skill test (RMST), sprint time, reactive agility, passing time, and passing accuracy. Participants of this study were Malaysian high school soccer players (n = 32), with mean age of 15.21 ± 1.85, who were assigned randomly into two groups: Experimental groups and control group. Each group had 16
Heart rate variability biofeedback in chronic disease management: A systematic review
Background: Heart rate variability biofeedback (HRVB) is a non-pharmacological intervention used in the management of chronic diseases.
Method: A systematic search was performed according to eligibility criteria including adult chronic patients, HRVB as main treatment with or without control conditions, and psychophysiological outcomes as dependent variables.
Results: In total, 29 articles were included. Reported results showed the feasibility of HRVB in chronic patients without adverse effects.
Mobile Heart Rate Variability Biofeedback as a Complementary Intervention After Myocardial Infarction: a Randomized Controlled Study
Methods
Forty-six outpatients aged 41 to 79 years with a documented MI were randomized to HRV-BF versus usual care. Generalized estimating equation (GEE) analyses were performed to test improvements in measures of short- and long-time HRV, namely, the standard deviation of the normal-to-normal intervals (SDNN) and well-being after 12 weeks of HRV-BF.
One-Minute Deep Breathing Assessment and its Relationship to 24-h Heart Rate Variability Measurements
Background: Heart rate variability (HRV), the change in the time intervals between successive pairs of heartbeats, is influenced by interdependent regulatory systems operating over different time scales to adapt to psychological challenges and environmental demands. Low ageadjusted HRV is predictive of upcoming health challenges in healthy people as well as a wide range of diseases in patients and correlates with allcause mortality. 24h HRV recordings are considered the “gold standard” and have greater predictive power on health risk
en savoir plus...Effect of Quick Coherence Technique on Psychophysiological Coherence, Heart Rate, Stress, Anxiety, Depression and Feeling State in Young Adults in India
HeartMath technology is an innovative technique to improving emotional mental health. A small-scale study was conducted to investigate the effect of quick coherence technique on psychophysiological coherence, stress, anxiety, depression and feeling state in young adults in India. Present study is in line with the past research done by S.D.Edwards (2016) on ‘Influence of Heartmath Quick Coherence Technique on Psychophysiological Coherence and Feeling States’. Six postgraduate students who complained of stress, anxiety and depression were
en savoir plus...Neurophysiological Approach by Self-Control of Your Stress-Related Autonomic Nervous System with Depression, Stress and Anxiety Patients.
Abstract: Background: Heart Rate Variability Biofeedback (HRVB) is a treatment in which patients learn self-regulation of a physiological dysregulated vagal nerve function. While the therapeutic approach of HRVB is promising for a variety of disorders, it has not yet been regularly offered in a mental health treatment setting. Aim: To provide a systematic review about the efficacy of HRV-Biofeedback in treatment of anxiety, depression, and stress related disorders. Method: Systematic review in PubMed and Web of Science
en savoir plus...A meta-analysis on heart rate variability biofeedback and depressive symptoms.
Heart rate variability biofeedback (HRVB) has been used for a number of years to treat depressive symptoms, a common mental health issue, which is often comorbid with other psychopathological and medical conditions. The aim of the present meta-analysis is to test whether and to what extent HRVB is effective in reducing depressive symptoms in adult patients. We conducted a literature search on Pubmed, ProQuest, Ovid PsycInfo, and Embase up to October 2020, and identified 721 studies.
en savoir plus...Consciousness, The Human Heart and The Global Energetic Field Environment
The Global Coherence Initiative (GCI) is a science-based, international effort that conducts research on interactions between humans and the Earth’s magnetic field environment as well as collective intention on promoting peace, and harmony.In order to carry out one aspect of the interconnectedness research, GCI has created a Global Coherence Monitoring System (GCMS), which is comprised of a network of six magnetometers specifically designed to measure geomagnetic and resonant frequencies in Earth’s
en savoir plus...Comparative study of the impact of active meditation protocol and silence meditation on heart rate variability and mood in women
Aim: The aim of this study was to understand the impact of an active meditation protocol on heart rate variability (HRV) and mood in women as compared to breath-focused silence meditation. Materials and Methods: Women experienced two different practices of 20 min each: (a) control group: silence meditation focusing on breath and (b) experiment group: active meditation that included four activities, each lasting for 5 minutes – (1) simple humming, (2) coherent heart-focused breathing with 5s of inhalation and 5s of exhalation, (3) coherent
en savoir plus...Norms of HRV in Cancer
Recent research has begun to show the role of the activity of the vagus nerve in cancer prognosis. However, it remains unknown whether cancer severity can impair vagal nerve activity. This study combined data (N = 657) of five different cancers (colorectal, pancreas, prostate, lung and ovarian) concerning patients’ Heart Rate Variability (HRV), a vagal nerve activity index. These data were compared to HRV levels of a healthy sample in another study. In addition, we examined the moderating effects of age, gender and cancer stage on HRV. The mean
en savoir plus...The relationship between vagal nerve activity and clinical outcomes in prostate and non-small cell lung cancer patients
Abstract. Recent studies suggest that vagal nerve activity, indexed by heart rate variability (HRV), could have a prognostic role in cancer. However, most studies did not control adequately for confounders and included cardiac patients. Furthermore, the validity of this prognostic role needs to be tested in different types of cancer. The present study tested the prognostic role of HRV in prostate cancer (PC) and non-small cell lung cancer (NSCLC) patients, using a historical prospective design. HRV was derived from brief 10 sec ECGs obtained at
en savoir plus...You may need the vagus nerve to understand pathophysiology and to treat diseases
Can different pathophysiological mechanisms and risk factors leading to various diseases be linked with altered transmission of signals by one common pathway? The present article provides evidence for the hypothesis that adequate vagal nerve activity reduces the risk ofmajor diseases, via common basic mechanisms and interim risk factors. These diseases include cardiovascular disease, cancer, Alzheimer’s disease and the metabolic syndrome. Three basic mechanisms contribute to such illnesses: local oxidative stress and DNA damage, inflammatory
en savoir plus...Heart Rate Variability Biofeedback Improves Emotional and Physical Health and Performance: A Systematic Review and Meta Analysis
We performed a systematic and meta analytic review of heart rate variability biofeedback (HRVB) for various symptoms and human functioning. We analyzed all problems addressed by HRVB and all outcome measures in all studies, whether or not relevant to the studied population, among randomly controlled studies. Targets included various biological and psy-chological problems and issues with athletic, cognitive, and artistic performance. Our initial review yielded 1868 papers, from which 58 met inclusion criteria. A significant small to moderate effect size was found favoring HRVB, which does not differ from that of other effective treatments. With
en savoir plus...Heart Rate Variability, Health and Well-Being: A Systems Perspective
The development of a new tool, analytic device, or approach frequently facilitates rapid growth in scientific understanding, although the process is seldom linear. The study of heart rate variability (HRV) defined as the extent to which beat-to-beat variation in heart rate varies, is a rapidly maturing paradigm that integrates health and wellness observations across a wide variety of biomedical and psychosocial phenomena and illustrates this nonlinear path of development. The utility of HRV as an analytic and interventive technique goes far beyond its original application as a robust predictor of sudden cardiac death. This Research Topic aims to provide a conceptual
en savoir plus...The Impact of HeartMath Resiliency Training on HealthCare Providers
Background: Health care providers must think clearly and make critical decisionsunder stressful circumstances. Providing effective strategies for managing stress in the moment helps mitigate the physical, emotional, and psychological impacts associated with caring for others and promotes resiliency. Staff may also utilize these techniques with patients and their families to help alleviate the symptoms of stress that may be experienced as the result of illness. Aim: The purpose of this study was to measure whether HeartMath techniques reduce stress and improve resiliency in health care providers. Methods: Study participants were asked to complete the Personal and Organizational
en savoir plus...Driving organizational entrainment through spiritual leadership
Connectedness is considered as one of the defining characteristics of the twenty-first century, with organizational research highlighting the importance of time, pace, rhythm, and cycles in business through the phenomenon of entrainment. Entrainment is a process of synchronization and connectedness within, between, and across rhythmic activities. This conceptual paper argues that applying spiritual leadership at each level of an organization can drive the (inter)connectedness in today’s organizations through entrainment. First, the concept of entrainment is introduced, with a focus on intraentrainment. The learnings from entrainment are then applied to spiritual
en savoir plus...A 6-Week Worksite Positivity Program Leads to Greater Life Satisfaction, Decreased Inflammation, and a Greater Number of Employees with A1C Levels in Range Published: 2019
Objective: To determine whether a 6-week Positivity Program could impact employee cardiovascular inflammation, blood sugars, cortisol, dehydroepiandrosterone (DHEA), and/or life satisfaction.
Methods: Pre- and post-study blood draw and life satisfaction questionnaire tracked changes in 10 cardiovascular and inflammatory
en savoir plus...Long-Term Study of Heart Rate Variability Responses to Changes in the Solar and Geomagnetic Environment
This long-term study examined relationships between solar and magnetic factors and the time course and lags of autonomic nervous system (ANS) responses to changes in solar and geomagnetic activity. Heart rate variability (HRV) was recorded for 72 consecutive hours each week over a five-month period in 16 participants in order to examine ANS responses during normal background environmental periods. HRV measures were correlated with solar and geomagnetic variables using multivariate linear regression analysis with Bonferroni
en savoir plus...Emotion Regulation After Acquired Brain Injury: A Study of Heart Rate Variability, Attentional Control, and Psychophysiology
Primary Objective: To examine the efficacy of heart rate variability biofeedback (HRV-BF) to treat emotional dysregulation in persons with acquired brain injury.
Design: A secondary analysis of a quasi-experimental study which enrolled 13 individuals with severe chronic acquired brain injury participating in a community-based programme. Response-to-treatment was measured with two HRV resonance indices (low frequency
Heart Rate Variability: New Perspectives on Assessment of Stress and Health Risk at the Workplace
Introduction: Cardiovascular diseases are the highest cause of death in the world. Many of these deaths may be workplace related. Long hours at work seem to be influencing the increased risks of heart diseases. Workplace stress can be defined as the “discrepancies between the physiological demands within a workplace and the inability of employees to either manage or cope with such work demands.” The varied nature and perception of stress are exemplified from literature that shows stress being either a stimulus, or a response, or a stimulus–
en savoir plus...Correlation Between Changes in Local Earth's Magnetic Field and Cases of Acute Myocardial Infarction
The impact of changes in the geomagnetic field on the human body remains the subject of studies across the world, yet there is no consensus. Current studies are observing effects that require further work by researchers in order to find out the mechanisms that would allow a proper assessment of the correlations between the Earth‘s magnetic field variations and changes in human organisms. The main purpose of this study was to investigate possible correlations between the strength of time-varying aspects of the local Earth’s magnetic field
en savoir plus...Combining Biofeedback with Stress Management Interventions: A Systematic Review of Physiological and Psychological Effects
Current mental healthcare systems experience difficulties meeting the challenges of a growing population with elevated stress symptoms. Outpatient stress management interventions have already proven to be effective in routine care and recent technological advances now allow to expand such interventions, for example by adding a physiological component like biofeedback. Adding biofeedback to stress management interventions appears promising, but there is a lack of insight into the general conceptualization and evaluation of the resulting
en savoir plus...The Influence of Heart Coherence on Synchronization Between Human Heart Rate Variability and Geomagnetic Activity
All biological systems, which are embedded within the Sun and Earth’s magnetospheres, are exposed to invisible fluctuating magnetic fields that span a wide range of frequencies [1]. It is well known that geomagnetic field line resonances and the Schumann resonances, which exist in the cavity between Earth and the ionosphere, generate a range of resonant frequencies that directly overlay those of the human brain, autonomic nervous system (ANS), and cardiovascular system. Of all the physiological systems studied, the rhythms
en savoir plus...Exploring a 1-Minute Paced Deep-Breathing Measurement of Heart Rate Variability as Part of a Workers' Health Assessment
Low heart rate variability (HRV) is related to health problems that are known reasons for sick-leave or early retirement. A 1-minute-protocol could allow large scale HRV measurement for screening of health problems and, potentially, sustained employability. Our objectives were to explore the association of HRV with measures of health. Cross-sectional design with 877 Dutch employees assessed during a Workers’ Health Assessment. Personal and job characteristics, workability, psychological and mental problems, and lifestyle were measured with questionnaires. Biometry was measured (BMI, waist circumference, blood pressure, glucose, cholesterol). HRV was assessed with a 1-minute paced deep-breathing protocol and expressed as mean heart rate range (MHRR). A low MHRR indicates a higher health risk.
en savoir plus...Self-Regulatory Biofeedback Training: An Intervention to Reduce School Burnout and Improve Cardiac functioning in college students
With the detrimental relationship between school burnout and physiological and cognitive functioning now well documented, interventions to ameliorate school burnout symptomology are needed. This study examined the effectiveness of a self-regulatory biofeedback intervention program (Heart RateVariability Coherence Biofeedback Training [HRVCB]) in contrast to a protocol demonstrated to produce cognitive and physiological improvements (a high intensity interval training protocol [HIIT]) as well as a wait-list control condition at decreasing school
en savoir plus...Heart Rate Variability and Cognitive Bias Feedback Interventions to Prevent Post-Deployment PTSD: Results from a Randomized Controlled Trial
There is a long history of pre-deployment PTSD prevention efforts in the military and effective pre-deployment strategies to prevent post-deployment PTSD are still needed. Materials and Methods: This randomized controlled trial included three arms: heart rate variability biofeedback (HRVB), cognitive bias modification for interpretation (CBM-I), and control. The hypothesis was that pre-deployment resilience training would result in lower post-deployment PTSD symptoms compared with control. Army National Guard soldiers (n =
en savoir plus...Long-Term Study of Heart Rate Variability Responses to Changes in the Solar and Geomagnetic Environment
This long-term study examined relationships between solar and magnetic factors and the time course and lags of autonomic nervous system (ANS) responses to changes in solar and geomagnetic activity. Heart rate variability (HRV) was recorded for 72 consecutive hours each week over a five-month period in 16 participants in order to examine ANS responses during normal background environmental periods. HRV measures were correlated with solar and geomagnetic variables using multivariate linear regression analysis with Bonferroni
en savoir plus...New Frontiers in Heart Rate Variability and Social Coherence Research: Techniques, Technologies, and Implications for Improving Group Dynamics and Outcomes
Concepts embraced by the term coherence have been identified as central to fields such as quantum physics, physiology, and social science. There are different types of coherence, although the term always implies a harmonious relationship, correlations and connections between the various parts of a system. A specific measure derived from heart rate variability (HRV) provides a measure of physiological coherence. Another type of coherence, social coherence, relates to the harmonious alignment between couples or pairs, family units, small
en savoir plus...An Overview of HRV Norms and Metrics
Healthy biological systems exhibit complex patterns of variability that can be described by mathematical chaos. Heart rate variability (HRV) consists of changes in the time intervals between consecutive heartbeats called interbeat intervals (IBIs). A healthy heart is not a metronome. The oscillations of a healthy heart are complex and constantly changing, which allow the cardiovascular system to rapidly adjust to sudden physical and psycho-logical challenges to homeostasis. This article briefly reviews current perspectives on the mechanisms that generate 24 h, short-term (~5 min), and ultra-short-term (<5 min) HRV, the importance of HRV, and its implications
en savoir plus...Identification of a Group's Physiological Synchronization with Earth's Magnetic Field
A new analysis technique for the evaluation of the degree of synchronization between the physiological state of a group of people and changes in the Earth’s magnetic field based on their cardiac inter-beat intervals was developed and validated. The new analysis method was then used to identify clusters of similar synchronization patterns in a group of 20 individuals over a two-week period. The algorithm for the identification of slow wave dynamics for every person was constructed in order to determine meaningful interrelationships between the
en savoir plus...Synchronization of Human Autonomic Nervous System Rhythms with Geomagnetic Activity in Human Subjects
A coupling between geomagnetic activity and the human nervous system’s function was identified by virtue of continuous monitoring of heart rate variability (HRV) and the time-varying geomagnetic field over a 31-day period in a group of 10 individuals who went about their normal day-to-day lives. A time series correlation analysis identified a response of the group’s autonomic nervous systems to various dynamic changes in the solar, cosmic ray, and ambient magnetic field. Correlation coefficients and p values were calculated between the
en savoir plus...The effect of heart rate variability biofeedbacktraining on stress and anxiety: a meta-analysis
Background.Some evidence suggests that heart rate variability (HRV) biofeedback might be an effective way to treat anxiety and stress symptoms. To examine the effect of HRV biofeedback on symptoms of anxiety and stress, we conducted a meta-analysis of studies extracted from PubMed, PsycINFO and the Cochrane Library.Methods.The search identified 24 studies totaling 484 participants who received HRV biofeedback training for stress and anxiety. We conducted a random-effects meta-analysis. Results.The pre-post within-group effect size
en savoir plus...Heart rate variability biofeedback therapy and graded exercise training in management of chronic fatigue syndrome
OBJECTIVE: Chronic fatigue syndrome (CFS) is characterised by persistent fatigue, exhaustion, and several physical complaints. Research has shown cognitive behavioural therapy (CBT) and graded exercise training (GET) to be the most effective treatments. In a first step we aimed to assess the efficacy of heart rate variability biofeedback therapy (HRV-BF) as a treatment method comprising cognitive and behavioural strategies and GET in the pilot trial. In a second step we aimed to compare both interventions with regard to specific
en savoir plus...Increasing Performance of Professional Soccer Players and EliteTrack and Field Athletes with Peak Peakperformance Training and Biofeedback: A Pilot Study
The aim of this pilot study was to investigate the effects of an intervention consisting of mental coaching combined with either electro encephalogram (EEG) alphapower feedback or heart rate variability (HRV) feedback on HRV, EEG outcomes and self-reported factors related to stress, performance, recovery and sleep quality in elite athletes. A prospective pilot study was performed with two distinct cohorts. Soccer players were provided with four sessions of mental coaching combined with daily HRV biofeedback (Group A); track and field
en savoir plus...Building Resilience in an Urban Police Department
Objective:The aim of this study is to examine a resilience training intervention that impacts autonomic responses to stress and improves cardiovascular risk, psychological, and physiological outcomes in police. Methods: Officers [(n=38) 22 to 54 years] modified emotional and physical responses to stress using self-regulation. Measurements include psychological and physiological measures [eg, heart rate variability (HRV), blood pressure, C-reactive protein)] obtained at three time intervals. Results: Age was significantly (P<0.05) associated with
en savoir plus...The Global Coherence Initiative: A Global Psychological Paradigm for Health Promotion
This review proposes the value of a global psychology-oriented initiative to promote health and well-being. It discusses the concept of collective consciousness, especially heart-based, moral consciousness and related actions as resources for health promotion. The review draws on a collaborative South African Global Coherence Initiative to support communal coherence and interconnectedness in an indigenous community setting.
en savoir plus...HeartMath and Ubuntu Integral Healing Approaches for Social Coherence and Physical Activity
This research was motivated by many social health problems confronting planet earth. Its aim is to introduce HeartMath and Ubuntu as complimentary, integral healing approaches for promoting social consciousness, coherence and various forms of physical activity. Integral healing themes discussed include holism, consciousness, energy, interconnected relationships, social coherence and helping resources, especially empathy. Particular focus is on moral consciousness, behavior and harmony in physical activity.
en savoir plus...Validity of (Ultra-)Short Recordings for Heart Rate Variability Measurements
Objectives
In order to investigate the applicability of routine 10s electrocardiogram (ECG) recordings for time-domain heart rate variability (HRV) calculation we explored to what extent these (ultra-)short recordings capture the “actual” HRV.
Methods
The standard deviation of normal-to-normal intervals (SDNN) and the root mean square of successive differences (RMSSD) were measured in 3,387 adults. SDNN and RMSSD were assessed from (ultra)short recordings of 10s(3x), 30s, and 120s and compared to 240s–300s (gold
Human Heart Rhythm Sensitivity to Earth Local Magnetic Field Fluctuations
The sensitivity of human hearth’s rhythm to the fluctuations of Earth’s local magnetic field is analyzed in this paper. Data collected during the long-term project of heart-rate variability (HRV) data from 17 female volunteers were used to correlate to measured fluctuations of Earth magnetic signals. Magnetic signals are collected utilizing the first global network of GPS time stamped detectors designed to continuously measure magnetic signals that occur in the same range as human physiological frequencies such as the brain and cardiovascular systems.
en savoir plus...Cardiac Coherence Training to Reduce Anxiety in Remitted Schizophrenia, a Pilot Study
Health care that addresses the emotional regulation capacity of patients with schizophrenia confronted with daily stress may contribute to a less anxious life. A psycho-physiological training [cardiac coherence training(CCT)] focusing on emotion regulation is known to decrease anxiety for healthy individuals. We performed a pilot cross sectional survey to explore the benefits of CCT for clinically stable patients with schizophrenia. Ten patients were enrolled in the program consisting of twelve weekly 1-h session programs monitored over a 2-month
en savoir plus...Physical Activity, Mindfulness Meditation, or Heart RateVariability Biofeedback for Stress Reduction
Abstract: In contemporary western societies stress is highly prevalent, therefore the need for stress-reducingmethods is great. This randomized controlled trial compared the efficacy of self-help physical activity (PA), mindfulness meditation (MM), and heart rate variability biofeedback (HRV-BF) in reducing stress and its related symptoms. We randomly allocated 126 participants to PA, MM, or HRV-BF upon enrollment, of whom 76 agreed to participate. The interventions consisted of psycho-education and an introduction to the specific
en savoir plus...Some Southern African Views on Interconnectedness with Special Reference to Indigenous Knowledge
The Global Coherence Initiative (GCI) conducts pioneering research into interconnectedness in order to promote global coherence, consciousness and health through heartfocused care (Institute of HeartMath, 2013). A global network of ultrasensitive magnetic field detectors are being installed strategically around the planet, one of which is established on a private game reserve in KwaZulu-Natal, which provides various local research opportunities. Southern African indigenous knowledge themes on interconnectedness are discussed in order
en savoir plus...Applying Resilience Promotion Training Among Special Forces Police Officers
Police Special Forces (a.k.a. special weapons and tactics [SWAT]) officers are tasked with responding to the most critical situations, including incidents that require specialized skills and equipment beyond typical policing activities. In this study, we tested the feasibility of applying Arnetz and colleagues’ resilience promotion training that was developed for patrol officers to SWAT team officers (n = 18). The resilience promotion training program included psychoeducation focused on police stress and resilience, and the practice of resilience
en savoir plus...Biofeedback Intervention for Stress, Anxiety, and Depression among Graduate Students in Public Health Nursing
Globally, graduate students have been found to have high prevalence of mental health problems. With increasing severity of mental health problems on university campuses and limited resources for mental health treatment, alternative interventions are needed.This study investigated the use of biofeedback training to help reduce symptoms of stress, anxiety, and depression. A sample of 60 graduate students in public health nursing was randomly assigned to either the biofeedback intervention or the control group. Results indicated that biofeedback
en savoir plus...Heart Coherence: A New Tool in the Management of Stress on Professionals and Family Caregivers of Patients with Dementia
We describe a stress management intervention intended to reduce the damage and stress impact on the heart physiology and function of a group of caregivers (professional and non-professional) who work with patients with dementia. The intervention consisted in applying heartcoherence techniques in a population of 72 caregivers of patients with dementia (42 professional and 29 non-pro-fessional caregivers) who had high scores in heart stress and burden tests. Six months after the training they were able to
en savoir plus...An Institutional Case Study: Emotion Regulation With HeartMath at Santa Cruz County Children's Mental Health
This case study from Santa Cruz County Children’s Mental Health Agency (CMH), California, reviews the use of measurement of heart rate variability (HRV) to enhance emotional regulation of patients. CMH serves seriously emotionally disturbed youths, many of whom have been separated from their parents for a prolonged period or have been vulnerable without the consistent presence of their caregivers. In this study, the HRV pattern was calculated as high coherence, medium coherence, or low coherence. According to Thurber et al, heart
en savoir plus...Heart Rate Variability: New Perspectives on Physiological Mechanisms, Assessment of Self-regulatory Capacity, and Health Risk
Heart rate variability, the change in the time intervals between adjacent heartbeats, is an emergent property of interdependent regulatory systems that operates on different time scales to adapt to environmental and psychological challenges. This article briefly reviews neural regulation of the heart and offers some new perspectives on mechanisms underlying the very low frequency rhythm of heart rate variability. Interpretation of heart rate variability rhythms in the context of health risk and physiological and
en savoir plus...Heart Coherence Training Combined with Back School in Patients with Chronic Non-specific Low Back Pain
The aim of this study was to explore on which variables a stress reduction program based on heartcoherence can enhance the effects of a back school (BS) inpatients with chronic non-specific low back pain and to explore possible moderators for treatment success. A ret-rospective explorative design was carried out with 170patients with chronic non-specific low back pain. 89 Patients were admitted to BS and 81 patients were selected for BS and heart coherence training (BS–HCT). Six sessions of heart coherence were provided. At
en savoir plus...
Heart rate variability (HRV), the change in the time intervals between adjacent heartbeats,is an emergent property of interdependent regulatory systems that operate on different time scales to adapt to challenges and achieve optimal performance. This article briefly reviews neural regulation of the heart, and its basic anatomy, the cardiac cycle, and the sinoatrial and atrioventricular pacemakers. The cardiovascular regulation center in the medulla integrates sensory information and input from higher brain centers, and afferent
en savoir plus...Cardiac coherence, self-regulation, autonomic stability, and psychosocial well-being
The ability to alter one’s emotional responses is central to overall well-being and to effectively meeting the demands of life. One of the chief symptoms of events such as trauma, that overwhelm our capacities to successfully handle and adapt to them, is a shift in our internal baseline reference such that there ensues a repetitive activation of the traumatic event. This can result in high vigilance and over-sensitivity to environmental signals which are reflected in inappropriate emotional responses and autonomic nervoussystem dynamics. In this article
en savoir plus...The Global Coherence Initiative Investigating the Dynamic Relationship Between People and Earth's Energetic Systems
The convergence of several independent lines of evidence provides strong support for the existence of a global information field that connects all living systems and contributes to a type of global consciousness. Every cell in our body is bathed in an external and internal environment of fluctuating invisible magnetic forces that can affect virtually every cell and circuit in biological systems. Therefore, it should not be surprising that numerous physiological rhythms in humans and global collective behaviors are not only synchronized with solar and
en savoir plus...
In recent years there has been substantial support for heart rate variability biofeedback (HRVB) as a treatment for a variety of disorders and for performance enhancement (Gevirtz,2013). Since conditions as widely varied as asthma and depression seem to respond to this form of cardiorespiratory feedback training, the issue of possible mechanisms becomes more salient.The most supported possible mechanism is the strengthening of homeostasis in the baroreceptor (Vaschillo et al., 2002;Lehrer et al., 2003). Recently, the effect on the vagal afferent
en savoir plus...Police department Personnel Stress Resilience training: An Institutional Case Study
The objective of this case study was to test the impact in law enforcement personnel of an innovative self-regulation and resilience building program delivered via an iPad (Apple Inc, Cupertino, California) app and personal mentoring. The Stress Resilience Training System (SRTS) app includes training on stress and its effects, HRV coherence biofeedback, a series of HeartMath self-regulation techniques (The Institute of HeartMath, Boulder Creek, California), and HRV-controlled games. The stressful
en savoir plus...Non-Pharmacological Intervention for Chronic Pain in Veterans: A Pilot Study of Heart Rate Variability Biofeedback
Objective: Chronic pain is an emotionally and physically debilitating form of pain that activates the body’s stress response and over time can result in lowered heart rate variability (HRV) power, which is associated with reduced resiliency and lower self-regulatory capacity. This pilot project was intended to determine the effectiveness of HRV coherence biofeedback (HRVCB) as a pain and stress management intervention for veterans with chronic pain and to estimate the effect sizes. It was hypothesized that
en savoir plus...Effectiveness of emWave Biofeedback in Improving Heart RateVariability Reactivity to and Recovery from Stress
The current study examined the efficacy of heart rate variability (HRV) biofeedback using emWave, a publicly available biofeedback device, to determine whether training affected physiological tone and stress responses. Twenty-seven individuals aged 18–30 years were randomized to a treatment or no-treatment controlgroup. Treatment participants underwent 4–8 sessions of emWave intervention, and all participants attended pre-treatment and post-treatment assessment sessions during which acute stressors were
en savoir plus...Stress Management Based on Trait-Anxiety Levels and Sleep Quality in Middle-Aged Employees Confronted with Psychosocial Chronic Stress
A stress management program using cardiac coherence was implemented after an organizational down-sizing. The study was conducted in nine voluntary workers in order to evaluate the efficiency of the program. A baseline evaluation was conducted on psychological variables (anxiety, perceived-stress, well- being and sleep), endocrine assessments (urinary cortisol excretion, alpha-amylase and salivary concentrations) and physiological recordings (sleep and heart rate variability). The low number of
en savoir plus...A pilot study of heart rate variability biofeedback therapy in the treatment of perinatal depression
Heart rate variability biofeedback (HRVB) therapy may be useful in treating the prominent anxiety features of perinatal depression. We investigated the use of this non-pharmacologic therapy among women hospitalized with severe perinatal depression. Three questionnaires, the StateTrait Anxiety Inventory (STAI), Warwick–Edinburgh Mental Well-Being Scale, and Linear Analog Self Assessment,were administered to 15 women in a specialized inpatient perinatal psychiatry unit. Participants were also contacted by telephone after discharge
en savoir plus...Coherence: A Novel Nonpharmacological Modality for Lowering Blood Pressure in Hypertensive Patients
This study examined the efficacy of teaching emotional self-regulation techniques supported by heart rhythm coherence training (emWave Personal Stress Reliever) as a means to quickly lower blood pressure (BP) in patients diagnosed with hyperten-sion. Previous studies have demonstrated systemic reductions in BP in both high stress populations and patients diagnosed with hypertension using this approach, but to the best of our knowledge, an investigation of their ability to produce immediate
en savoir plus...Biofeedback Intervention for Stress and Anxiety among Nursing Students: A Randomized Controlled Trial
Purpose.It has been well documented that nursing students across the world experience stress and anxiety throughout their education and training. The purpose of this randomized controlled study is to investigate the impact of biofeedback intervention program on nursing students’ levels of stress and anxiety during their first clinical training. Methods.Participants consisted of 60 second-year baccalaureate nursing students. The 30 participants in the biofeedback group received training on how to use the biofeedback device to assist in stress and
en savoir plus...The effect of a biofeedback-based stress management tool on physician stress: a randomized controlled clinical trial
Background: Physicians often experience work-related stress that may lead to personal harm and impaired profes-sional performance. Biofeedback has been used to manage stress in various populations. Objective: To determine whether a biofeedback-based stress management tool, consisting of rhythmic breathing, actively self-generated positive emotions and a portable biofeedback device, reduces physician stress. Design: Randomized controlled trial measuring efficacy of a stress-reduction intervention over 28 days, with a
en savoir plus...Heart rate variability behavior at different stages of practice in Zen meditation: a study of the system dynamics using multiresolution analysis
The dynamic interactions between the sympathetic and parasympathetic branches of the autonomic nervous system (ANS) are responsible for the oscillations in heart rate known as heart rate variability (HRV). Thus, the importance of HRV as an indirect measure of the autonomic activity is widely known. Meditation is perhaps the best practice to investigate the intrinsic properties of the ANS, since it involves a state of complete physical immobility and absence of voluntary efforts. In this study we analyzed HRV during Zen
en savoir plus...Coherence and Health Care Cost -- RCA Actuarial Study: A Cost-Effectiveness Cohort Study
Chronic stress is among the most costly health problems in terms of direct health costs, absenteeism, disability, and performance standards. The Reformed Church in America (RCA) identified stress among its clergy as a major cause of higher-than-average health claims and implemented HeartMath (HM) to help its participants manage stress and increase physiological resilience. The 6-week HM program Revitalize you! was selected for the intervention including the emWave Personal Stress Reliever technology.
en savoir plus...Coherence training in children with attention-deficit hyperactivity disorder: cognitive functions and behavioral changes
Attention-deficit hyperactivity disorder (ADHD) is the most prevalent behavioral diagnosis in children, with an estimated 500000 children affected in the United Kingdom alone. The need for an appropriate and effective intervention for children with ADHD is a growing concern for educators and child-care agencies. This randomized controlled clinical trial evaluated the impact of the HeartMath self-regulation skills and coherence training program (Institute of HeartMath, Boulder Creek, California) on a population of 38 children with ADHD in
en savoir plus...Cardiac Coherence and Posttraumatic Stress Disorder in Combat Veterans
Background • The need for treatment of posttraumatic stress disorder (PTSD) among combat veterans returning from Afghanistan and Iraq is a growing concern. PTSD has been associated with reduced cardiac coherence (an indicator of heart rate variability [HRV]) and deficits in early stage information processing (attention and immediate memory) in different studies. However, the co-occurrence of reduced coherence and cognition in combat veterans with PTSD has not been studied before. Primary Study Objective • A pilot study was
en savoir plus...New Hope for Correctional Officers: An Innovative Program for Reducing Stress and Health Risks
This study investigated the impact of a new stress management program on physiological and psychological stress and health risk factors among 75 correctional officers. The experimental group received training in emotion self-regulation techniques intended to reduce stress and health risk factors. Practice of the techniques was enhanced by heart rate variability feedback, which helped participants learn and sustain use of the self-management tools. Measures of physiological stress included cortisol, DHEA, cholesterol, triglycerides, fasting glucose
en savoir plus...Heart Rate Variability Biofeedback for Major Depression
Heart rate variability for the treatment of major depression is a novel, alternative approach that can offer symptom reduction with minimal-to-no noxious side effects. The following material will illustrate some of the work being conducted at our laboratory to demonstrate the efficacy of heart rate variability. Namely, results will be presented regarding our published work on an initial open-label study and subsequent results of a small, unfinished randomized controlled trial. Autonomic nervous system (ANS) dysfunction
en savoir plus...
Objectives: This study aims to contribute to a scientific understanding of intuition, a process by which information normally outside the range of conscious awareness is perceived by the psychophysiological systems. The first objective, presented in two empirical papers (Part 1 and Part 2), was to replicate and extend the results of previous experiments demonstrating that the body can respond to an emotionally arousing stimulus seconds before it is actually experienced. The second objective, to be presented in a third paper (Part 3), is
en savoir plus...
Objectives: This study aims to contribute to a scientific understanding of intuition, a process by which information normally outside the range of conscious awareness is perceived by the body’s psychophysiological systems. The first objective, presented in two empirical reports (Part 1 and Part 2), was to replicate and extend the results of previous experiments demonstrating that the body can respond to an emotionally arousing stimulus seconds before it is actually experienced. The second objective, to be presented in a forthcoming
en savoir plus...A Controlled Pilot Study of Stress Management Training of Elderly Patients With Congestive Heart Failure
The purpose of this study was to evaluate the effect of stress management training on quality of life, functional capacity, and heart rate variability in elderly patients with New York Heart Association classI–III congestive heart failure (CHF). While substantial research exists on stress management training for patients with coronary heart disease, there are few data on the value of psychosocial training on patients with CHF. Thirty-three multi ethnic patients (mean age, 66±9 years) were assigned through incomplete randomization to one of two
en savoir plus...The Impact of a New Emotional Self-Management Program on Stress, Emotions, Heart Rate Variability, DHEA and Cortisol
This study examined the effects on healthy adults of a new emotional self-management program, consisting of two key techniques,"Cut-Thru" and the "Heart Lock-In." These techniques are designed to eliminate negative thought loops and promote sustained positive emotional states. The hypotheses were that training and practice in these techniques would yield lowered levels of stress and negative emotion and cortisol, while resulting in increased positive emotion and DHEA levels over a one-month period. In addition, we
en savoir plus...The Effects of Emotions on Short-Term Power Spectrum Analysis of Heart Rate Variability
This study utilizes heart rate variability analysis to examine a new method of intentionally shifting emotional states, and demonstrates that positive emotions lead to alterations in sympathovagal balance that may be beneficial in the treatment of hypertension. Anger, on the other hand, was shown to significantly increase sympathetic activation.
en savoir plus...The Effects of Emotions on Short-Term Power Spectrum Analysis of Heart Rate Variability
Introduction: This study utilizes HRV analysis to examine a new method of intentionally shifting emotional states, and demonstrates that positive emotions lead to alterations in sympathovagal balance that may be beneficial in the treatment of hypertension. Anger, on the other hand, was shown to significantly increase sympathetic activation.
Summary: Salivary IgA, heart rate and mood were measured in thirty individuals before and after experiencing care or anger. Two methods