View clinical trials related to Heart Rate Variability.
Filter by:Patients undergoing hematopoietic stem cell transplantation (HCT) often continue to experience anxiety, depression, isolation, and other psychosocial distress due to the severe nature of the transplant experience. Storytelling interventions that provide an opportunity for emotional disclosure have shown preliminary efficacy to alleviate psychosocial distress and improve emotion regulation during health challenges. Not only are these changes observed in response to such interventions, but they can also be directly strengthened with HRV biofeedback (HRVB) training, a device-driven breath pacing practice that uses colored light signals to provide feedback to increase vagal tone and improve emotional responses and sleep quality by regulating negative affect and stress. This randomized controlled trial will explore the effects of HRV biofeedback (HRVB) training combined with a digital storytelling intervention and changes in psychosocial distress with a modified waitlist control in a population of Hematopoietic cell transplantation (HCT) patients.
The adaptation of the heart to react to any stimulus is called heart rate variability (HRV). Moreover, HRV is now used as a health index. In fact, among the pathologies affecting HRV the most, there are the cardiovascular diseases and depressive disorders that take a predominant part in the investigator's actual societies, According to a recent literature overview, many factors influence HRV and they need to be determined in order to plan efficient research protocols. Moreover, the control of these factors can improve the HRV and therefore help the heart to have maximum capacity to fulfill its physiological functions. Valorizing a good HRV seems, according to the effects reported by several studies, to be a good opportunity to take into consideration and to apply. Visceral osteopathy, even if it goes back to the founder of Osteopathy himself, Andrew Taylor Still, is at its debuts in terms of acknowledgement from a scientific point of view. The evidence of efficacy of osteopathy is not to be done anymore. However, it is now necessary to define the action mechanisms of the osteopathic techniques, particularly by using physiological variables, and starting from a biomechanical angle. In fact, Jean-Pierre Barral and others has developed visceral manipulation techniques based on the viscera anatomy. The originality of this research can be found in the technical protocol, not used yet, the use of witness group, the measurements over four weeks to evaluate the effect of this protocol with time on chosen dependant variables, its reproducibility but also its inter-therapist variance. This objective if this study is to reinforce the proof level of the osteopathic approach on the cardiac physiology. HRV is a solid tool recognized for research, the variable is well isolated and the control group ensures an isolation of some confounding variables.
Determine effect of AVACEN 100 on brachial artery blood flow and heart rate variability
Determine the effect of feet and calf heating on glucose tolerance relative to thermoneutral control. Heat will be administered using hot water (40 degrees celsius).
This research study will evaluate changes in resting metabolic rate, appetite, and heart rate variability following overnight exposure (8 h/night) to normobaric hypoxia (NH) or normobaric normoxic (NN). In randomized order, participants will sleep one night in NH conditions (~15% oxygen; achieved with nitrogen dilution, equivalent to ~8500 feet elevation) and another night in NN (control) conditions (~20% oxygen; achieved with nitrogen dilution, equivalent to ~1000 feet elevation).
To demonstrate the effect of non invasive vagus nerve (VNS) stimulation on heart rate variability and MSNA signal.
Depression is one of the most common invalidating mental disorders, ranked by World Health Organization as the single largest contributor to global disability. Current recommended treatments for depression include antidepressant medication and according to guidelines, Cognitive Behavioral Therapy (CBT) and Interpersonal Therapy (IPT). Despite encouraging preliminary results (e.g., Matthijssen et al., 2020), Eye Movement Desensitization and Reprocessing (EMDR) therapy is not yet recognized as an effective therapy for depression by APA and NICE. The project aims to conduct a large multisite study that addresses the shortcomings of previous efficacy research on EMDR for depression. The primary aim is to evaluate the effectiveness of EMDR therapy in reducing depressive symptoms in adults with major depression as compared to CBT. Secondary aims of the study are the effectiveness of EMDR, as compared to CBT and TAU, in improving anxiety, and other symptoms. It is hypothesized that EMDR is not inferior to CBT.
Repetitive transcranial magnetic stimulation is a non-invasive neuromodulation technique used to treat different neuropsychiatric disorders, such as, depression, neuropathic pain, fibromyalgia and obsessive-compulsive disorder. It is known that the heart rate variability is altered in these conditions. Therefore the focus of this research is to show the influence of rTMS on the Heart Rate Variability.
Work-related stress is a public health issue. Among the multiple physical and psychological consequences of stress, increased mortality and cardiovascular morbidity seem the main concern. The thermal spa resort of Néris-Les-Bains is one of the five spa resorts in France specialized in the treatment of psychosomatic disorders. Among all these resorts proposing a thermal residential program of three weeks, only one thermal spa resort (Saujon) has a program for occupational burn-out. However, a shorter thermal spa residential program seems more compatible with professional context (availability of individuals), and focusing on work-related stress prevention (before the state of burn-out). The main hypothesis is that a short thermal spa residential program (6 days) of work-related stress prevention will exhibit its efficacy through objective measures of well-being and cardiovascular morbidity.
Previous research suggests that heart rate variability (HRV) biofeedback aimed at increasing HRV can reduce anxiety and stress. However, some mental quiescence practices that reduce HRV during the practice sessions also lead to positive emotional outcomes. Thus, it is not obvious that the benefits of HRV-biofeedback accrue due to increasing HRV during the session. An alternative possibility is that the benefits arise from engaging prefrontal control over heart rate. In this study, the investigators will test two possible mechanisms of the effects of HRV on emotional health by comparing two groups. In one group, participants will be asked to engage in daily training to decrease HRV using the HRV biofeedback device. In the other group, participants will be asked to engage in daily training to increase HRV using the HRV biofeedback device. This will allow analyses to pit two possible mechanisms against each other: 1. Mechanism 1: engaging prefrontal control over heart rate is the critical factor that allows HRV biofeedback to help improve well-being. In this case, well-being should increase over time in both groups, as both training should engage prefrontal cortex to implement self-directed control over heart rate. Strengthening prefrontal control mechanisms may help improve emotion regulation in everyday life. 2. Mechanism 2: increased HRV during the training sessions leads to greater functional connectivity among brain regions associated with emotion regulation during the high HRV state. In this case, improved well-being would be specifically associated with having time each day during which there were very high HRV states, and so improved well-being should be seen only in the group in which participants get biofeedback to increase HRV.