View clinical trials related to Heart Rate Variability.
Filter by:This study aims to examine whether listening to natural sounds in a noisy virtual reality environment compared to no natural sounds influences physiological markers.
The current project aims to design and implement an 8-week Virtual Reality Adventure Therapy Exergaming (V-RATE) intervention focused on women veterans. A randomized controlled trial using a repeated measure design with a 1-month follow-up assessment will be employed to examine effects on physical and mental health outcomes.
Community service providers (CSPs), such as promotores and other community health staff, play an essential role in preserving health and treating disease in underserved Hispanic/Latinx (HL) communities with disproportionately high rates of cardiometabolic (CM) disease. Although effective programs have been developed that deploy CSPs to reduce CM disease risk in the community, to our knowledge no interventions have sought to reduce CM risk among CSPs themselves. However, CSPs are also at high risk for adverse CM outcomes, as they have the same high-risk demographics as the communities they serve and they work in high-stress, frontline jobs. Reducing CM risk among HL CSPs is crucial to promote health at both the individual and community levels; that is, preventive interventions delivered to CSPs may not only promote the health of the individual CSPs who receive the intervention but also may bolster CSPs to more effectively deliver programming that protects CM health community-wide. The proposed study employs relational savoring (RS), a brief intervention rooted in positive psychology and attachment, which has previously been shown to promote psychosocial well-being and which is particularly efficacious in HL populations. Emerging research supports that RS may also promote more optimal cardiovascular regulation and health behavior. Therefore, the investigators deliver RS to CSPs in order to identify CM health protective effects for both CSPs and the high-risk communities they serve. Aims and Hypotheses: Aim 1: Examine effects of RS on CSPs' CM risk factors and outcomes. Hypotheses: RS (compared to wait-list control) will be associated with lower CM risk, as indexed by higher mean HRV, both during a stressor and at rest (H1A). RS will also be associated with a more favorable CM health behavior profile, indexed by higher quality sleep, more exercise, and healthier diet (H1B). Aim 2: Examine effects of RS on CSPs' delivery of CM health programming to the community. Hypotheses: RS will be associated both with reduced threats to CSPs leaving the workforce, including higher satisfaction with work, greater agency, and lower burnout (H2A), and with a higher number of community members reached for CM health programming, as indexed by number of days CSP worked, number of health-related events offered by CSPs, community attendance at events, and retention of community members across multi-day programs (H2B).
Traditional Chinese acupuncture has a history of several thousand years. The World Health Organization has published guidelines describing the efficacy of acupuncture in the cure or relief of 64 different symptoms and conditions as one of the most representative intangible cultural heritage of humanity. In recent years, the applications of laser acupuncture, or so-called low-level laser therapy which are belong to the domain of photobiomodulation therapy, become widespread. Laser acupuncture is not only applicate to stimuli specific areas in need, but also one of non-invasive intervention technic with hurtles intervention, no hematoma, bleeding or swelling unpleasant feeling after intervention, which could be more accepted by children, weakness people, and patients who afraid of acupuncture. However, the underlined mechanisms and the neural pathway of laser acupuncture are still obscure. The inconsistent results from previous studies have been reported that laser acupuncture stimulation on the Neiguan (PC 6), the acupoint of Pericardium meridian, could affect the autonomic nerve system in terms of heart rate, blood pressure, activities of sympathetic and/or parasympathetic nerves. The results of previous studies on the changes of autonomic nervous system (ANS) caused by laser acupuncture on Neiguan (PC6), an acupoint of the pericardium meridian, have been inconsistent. Our preliminary results show that laser acupuncture on PC6 seems to have a biphasic dosage effect on the ANS changes. However, little is known about the possible central mechanisms underpinned these ANS changes. In addition, whether laser acupuncture on different meridians will also induce a biphasic dosage effect on the ANS is still unknown. Therefore, the main purposes of this project are: 1) to explore the changes of ANS and associated brain networks by applying laser acupuncture with on PC6 different intensities; and 2) to explore whether applying laser acupuncture on different meridians will have different ANS and related brain network responses. In this two-year, single-blind, parallel experiment design project, the recruited healthy subjects will randomly assign to the group with high energy density, low energy density, or no energy of laser acupuncture on PC6 (in first year) or on Shugu (in second year), which is an acupoint of the bladder meridian (BL65). Via a non-invasive wearable photoplethysmography, the peripheral pulse rate variability will be calculated as the index of ANS changes. In addition, the resting-state functional MRI scans will be performed before and after laser acupuncture to explore the immediate changes in the brain networks that may regulates the activity of ANS. The investigators hope that through the application of modern scientific methods to probe the meridian phenomenon in Chinese medicine, The investigators can further understand the neurological mechanisms of the meridian and provide a new insight for the traditional meridian theory of Chinese medicine.
The proposed study will investigate the utility of a single-session emotion regulation training to reduce CVD risk among young adults diagnosed with MDD living in Southern MS. Using an single-arm, non-randomized design, young adults aged 18-29 will undergo a single-session emotion regulation skills training. Before and immediately after the skills training session, participants will supply several biological metrics tied to CVD risk: resting HRV, inflammation (measured via c-reactive protein [CRP]), and blood pressure. Participants will provide the same biological metrics at a one-week follow-up visit to assess short-term sustained gains following the single-session intervention and complete a 7-day ecological momentary assessment (EMA) of their daily emotion regulation skills use and depressive symptoms between these two visits.
This study aims to examine the relationship among cognitive fatigue, self-regulation, and academic performance.
This study aims to examine the effects of cognitive fatigue on heart rate variability and skin conductance and develop a machine learning model.
This study aims to examine whether listening to natural sounds in a noisy (traffic) environment compared to traffic noise only impacts behavioural, cognitive, affective, and physiological markers associated with attention restoration. Attention restoration will be examined as an aspect of cognitive fatigue.
Ophthalmology physicians and residents work under stress conditions during night emergency ophthalmology shifts. Under time pressure, that is a characteristic of the urgency of care, they must use all their cognitive resources to make an accurate diagnosis and to provide accurate decisions, with sometimes surgical emergency acts. In addition, in France, they work at night following by an usual day work, and they can also work 48 consecutive hours during weekends, followed by a work day … i.e. 60 consecutive hours of work … Long working hours with a short recovery time has been demonstrated to be a major factor of stress and fatigue. Even if not demonstrated on ophthalmologists, those working conditions may contribute to symptoms of mental exhaustion and physical fatigue (sleep deprivation), often accompanied by a loss of motivation at work. This may leads to a feeling of loss of time control; stress can also distort the perception of time and leads to hasty actions or delayed decision-making. The combined effects of stress, feelings of loss of time control, and fatigue necessarily have an impact on work performance and work quality, with a high risk of medical error. Moreover, prolonged stress may expose ophthalmologists to a higher risk of multiple diseases, predominantly systemic inflammation and coronary heart disease. The main hypothesis is that prolonged work (up to 60 consecutive working hours) may impact on HRV, comparatively to a typical working day.
The purpose of this study is to describe the variation characteristics and factors of the heart rate variability during long-distance running.