View clinical trials related to Autonomic Nervous System.
Filter by:The goal of this clinical trial is to test a wearable device's effect on performance in tactical populations with a history of concussion. The main question it aims to answer is the effectiveness of the device on modulate physiological and cognitive function. The physiological function will be derived from metrics of heart rate variability and blood-based biomarkers, whilst human performance will be evaluated using tasks that assess cognitive domains of executive function, reaction time, and memory.
The aim of our study is to compare the efects of conventional treatment and vagus nerve stimulation on pain, normal joint movement, disability and sleep in non-specific chronic neck pain. 36 patients aged between 18 and 65 years with non-specific neck pain participated in our randomly planned study. All these patients were divided into 2 groups. Demographic and physical characteristics of the patients were recorded. The first group was treated with auricular vagus nerve stimulation. Conservatire treatment that consists of hotpack, transcutaneous electrical nerve stimulation (TENS) and therapeutic ultrasound was applied to the second group. In addition to their treatment, some home exercises were given and tought. Pain was assessed with a visual analog scale (VAS). Muscle strength was evalvated with a digital hand dynamometer. Neck normal joınt motion was evaluated with goniometer clinometer which is a mobile phone application. While disability was mensured with the neck disability index, sleep quality was evalvated with the Pittsburg sleep questionnaire. All the measurements were recorded before the trearment and after the 15 session treatment.
This randomized controlled trial will assess the effects of External Cues focused messaging (i.e., government recommendations of MyPlate) compared to Internal Cues focused messaging (i.e., intuitive eating). The investigators will collect data on within-person changes in psychological (e.g. affect) and physiological (e.g. heart rate variability) outcomes in female college students. Participants will be randomly assigned to one of two study conditions. In condition one, participants will view a five-minute video focusing on traditional nutrition education principles. In condition two, participants will view a five-minute video focusing on intuitive eating principles.
Cardiovascular disease is one of the most important causes of death and disability in the world. An autonomic imbalance is associated to cardiovascular risks and disorders. Electrical stimulation (ES) applied by surface electrodes is a non-invasive therapeutic approach with low side-effects. In the last years, some studies had investigated the effects of ES on the autonomic nervous system and cardiovascular system. However, different intensities, frequencies and electrode locations had been used, which makes difficult to clarify the optimal parameters. The aim of this study is to analyze the effects of ES on autonomic nervous modulation in healthy subjects comparing three different locations of application for ES. Participants will be aleatory assigned to one of three groups for a single-session of 20-minute transcutaneous ES: a) an auricular intermittent ES in an area that is believed to be connected to the vagal nerve (cymba conchae); b) an auricular sham intermittent ES, meaning a real ES but applied on an ear location not connected to the vagal nerve (scapha); and c) an upper back continuous ES (C7-T4), a placement that is thought to be connected to the stellate (sympathetic) ganglion. All the protocols will be stated at a non-painful intensity. After that, the hand grip exercise will be executed. The heart rate variability (HRV) and heart frequency (HR) will be measured in four main times: the baseline, in the final minutes of the ES, after the ES and after finishing the hand grip exercise. Blood pressure will be measured also at all the time points except during the ES due to the possibility of interferences. Adverse effects will be assessed after ES and 48 h later. The study will provide initial knowledge about how different electrical stimulation locations contribute to reduce sympathetic excitation and improve the sympathovagal balance.
The purpose of this study is to evaluate the effects of several manual therapy techniques on autonomic nervous system and to compare it with other groups in the study such as deep-slow breathing group and the control group. The measurements will take place right before and after the intervention to evaluate the effects of one single intervention.
The investigators sought to evaluate the incidence and influence of vagal response observed during cryoballoon-based pulmonary vein isolation on the cardiac autonomic nervous system (CANS) and ablation outcomes in paroxysmal atrial fibrillation cohort. 296 patients were treated with a 28-mm second-generation cryoballoon (Arctic Front Advance, Medtronic). Preprocedural pulmonary veins anatomy and their ostial dimensions were acquired with a computed tomography. 74 patients without structural heart disease and with no concomitant diseases were chosen for a detailed CANS assessment with heart rate variability analysis. All patients were screened over a 2-year post-ablation period.
A study to explore whether different temperatures of warm water footbaths have different effects on the cardiovascular system, the autonomic nervous system and the general well-being of healthy women.
The autonomous response of fighter and attack pilots who attend sessions in a flight simulator will be evaluated by measuring and analyzing heart rate variability (HRV).
Yoga has received considerable attention for its potential therapeutic benefits over the past decades and it gradually became object of scientific scrutiny. There is currently extensive literature supporting its use as a non-pharmacological tool for managing a variety of medical problems. A few studies have also explored potential beneficial effects of practising yoga during pregnancy on maternal and neonatal outcomes. An association between prenatal yoga and decreased incidence of fetal growth restriction, preterm delivery, and labor abnormalities resulting in operative delivery have been reported. Exact mechanisms by which yoga could improve perinatal outcomes have not been elucidated yet. One of such mechanisms could be the positive effect of yoga on autonomic nervous system (ANS). Maternal cardiovascular system undergoes profound changes during pregnancy and ANS plays a central role in adaptation to pregnancy-related hemodynamic changes. Increase in peripheral vascular resistance that characterises hypertensive disorders in pregnancy with fetal growth restriction is mediated by substantial increase in sympathetic vasoconstrictor activity. Effects of yoga on ANS outside of pregnancy have already been investigated in several studies. Heart rate variability (HRV) indices, used as a one of proxy measures for ANS activity, showed significant shifts towards parasympathetic dominance following yoga sessions. Another objective means of assessing ANS activity is measurement of phase synchronisation between cardiovascular and respiratory systems following acute challenge. The higher the cardiorespiratory synchronisation after acute challenge is, the higher is the ability of ANS to flexibly adapt to challenge. The objectives of the study are: I. To examine whether there is a short-term shift in autonomic balance to the parasympathetic branch of the ANS and ability of the cardiovascular and respiratory respiratory systems to flexibly adapt to acute psychological challenge following sessions in pregnancy. II. To investigate potential long- term effects of yoga practice during pregnancy on HRV and cardio-respiratory synchronisation following acute psychological challenge.
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.