Clinical trials: Heart Rate Variability, open to volunteers
Precapillary Pulmonary Hypertension, Pulmonary Arterial Hypertension
Evolution of Hypoxic Burden and Sympathetic/Parasympathetic Balance in Patients With Pulmonary Hypertension
Background and Rationale: Sleep-disordered breathing and nocturnal hypoxemia are highly prevalent in patients with precapillary pulmonary hypertension (PH), and current guidelines recommend systematic sleep assessment in this…
- Conditions
- Precapillary Pulmonary Hypertension, Pulmonary Arterial Hypertension, Sleep-disordered Breathing, Nocturnal Hypoxemia
- Trial name
- HRV&PH (NCT07464184)
- Testing
- Standard Clinical and Functional Assessment, Overnight Polysomnography
- Where
- France
- Volunteers
- 60 people
- Sponsor
- University Hospital, Rouen
Heart Rate Variability
Comparison of Heart Rate Variability Analysis Durations and Their Relationship With Blood Pressure
This observational study aims to compare heart rate variability (HRV) parameters obtained from different analysis durations in healthy adults and to examine how these parameters relate to resting blood pressure values.
- Trial name
- HRV-BP (NCT07531992)
- Testing
- Heart Rate Variability and Blood Pressure Assessment
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Sinop University
Stress
Psychophysiological Stress Response in Medical Students During Simulation-Based Communication Training -Study Protocol
In this study, researchers will examine key predictors of stress reactions in medical students participating in simulation-based communication training.
- Trial name
- SIMU2025 (NCT06906614)
- Testing
- Simulation-Based Communication Training
- Where
- Czechia
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Masaryk University
Stress, Psychological Resilience
Diaphragmatic and Box Breathing on Heart Rate Variability and Perceived Stress
The goal of this clinical trial is to learn if diaphragmatic breathing and box breathing work to enhance resilience and manage stress in physical therapy students.
- Conditions
- Stress, Psychological Resilience, Healthy Students
- Trial name
- HRV DB BB PSS (NCT07698652)
- Testing
- Diaphramatic Breathing Training, Box Breathing Training
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Cairo University
Anxiety, Psychological Flexibility
Comparative Effects of Four Brief Breathwork and Mindfulness Interventions on Anxiety and Psychological Flexibility: A 4-Arm RCT
This four-arm, single-blind randomized controlled trial examines the effects of four brief daily 5-minute practices over 28 days on psychological flexibility and physiological variables in Spanish-speaking adults.
- Conditions
- Anxiety, Psychological Flexibility, Stress
- Trial name
- BREATH-4 (NCT07621042)
- Testing
- Box Breathing, Cyclic Sighing, Mindfulness AH Exhalation
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- Valencian International University (VIU)
Type 2 Diabetes Mellitus, Hypertension
Effect of Beetroot Juice on Cardiovascular and Autonomic Responses to Exercise in Adults With Type 2 Diabetes
This study will investigate whether a single dose of beetroot juice can improve cardiovascular responses and recovery after exercise in adults with Type 2 Diabetes.
- Conditions
- Type 2 Diabetes Mellitus, Hypertension, Autonomic Nervous System Diseases
- Trial name
- DiaBEET (NCT07560800)
- Testing
- Beetroot juice
- Where
- United Kingdom
- Volunteers
- 20 people
- Sponsor
- Oxford Brookes University
Cardiac Arrest
Heart Rate Variability in Early Prediction of a Noxic Brain Injury After Cardiac Arrest
Despite advances in post-resuscitation care of patients with cardiac arrest (CA), the majority of survivors who are treated after restoration of spontaneous circulation (ROSC) will have sequelae of hypoxic-ischemic brain injury…
- Trial name
- HEAVENwARd (NCT06044922)
- Testing
- 24-hour Holter monitoring
- Where
- 5 sites in France
- Volunteers
- 200 people
- Sponsor
- CMC Ambroise Paré
Hypertension
Unilateral and Bilateral Resistance Training in Hypertension
Hypertension is associated with autonomic nervous system dysfunction, reduced muscle strength, and impaired functional capacity, all of which contribute to increased cardiovascular risk and decreased quality of life.
- Trial name
- NCT07751445
- Testing
- Unilateral Resistance Training, Bilateral Resistance Training
- Where
- Turkey (Türkiye)
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Hacettepe University
Holistic Care, Mental Health
Using Integrated Care and Wearable Technology to Evaluate Outcomes of the Shields & Stripes Program for Veterans and First Responders
This study aims to evaluate outcomes from the Shields \& Stripes (S\&S) program - a 12-week, multidisciplinary wellness intervention designed for veterans and first responders.
- Conditions
- Holistic Care, Mental Health, Sleep, PTSD
- Trial name
- S&S Wellness (NCT07452900)
- Where
- United States
- Volunteers
- 80 people
- Sponsor
- Baylor University
Chemotherapy-Induced Peripheral Neuropathy, Radiation Toxicity
Patients Referred to the Chronic Pain Unit for Palliative Treatment With Ozone Therapy Between 2026 and 2029.
The main objective of this study is to analyze the impact on the health-related quality of life of patients with refractory symptoms who have been referred to the Dr.
- Conditions
- Chemotherapy-Induced Peripheral Neuropathy, Radiation Toxicity, Chronic Pain, Delayed Wound Healing
- Trial name
- EPOOzo-2 (NCT07325851)
- Testing
- Ozone Therapy
- Where
- Spain
- Volunteers
- 120 people
- Sponsor
- Bernardino Clavo, MD, PhD
Fibromyalgia (FM), Posttraumatic Stress Disorder (PTSD)
Treatment of Fibromyalgia and PTSD With Live and Inactive Vagus Nerve Stimulation With PEPC
Fibromyalgia (FM) pain and PTSD are highly prevalent and comorbid with associated increased risk of negative physical and mental health outcomes, including higher risk for opioid use and suicide.
- Trial name
- SWIFT-RELIEVE (NCT07718984)
- Testing
- tAN plus PEPC
- Where
- United States
- Volunteers
- 180 people
- Sponsor
- VA Office of Research and Development
Anesthesia, Anxiety
Drawing Therapy for pReoperative Anxiety in Waiting (DRAW)
This study will use a factorial design to compare the effects of different colors and shapes on patients' preoperative anxiety.
- Trial name
- DRAW (NCT07445399)
- Testing
- warm color, cold color, sharp shape
- Volunteers
- 272 people
- Sponsor
- Zhihong LU
Autonomic Nervous System Disease, Concussive Injury
Randomized Controlled Trial of Treatment to Optimize Heart Rate Variability for Persistent Post-Concussion Symptoms
Many combat veterans (c-Vs), service members (SMs) and civilians with mild traumatic brain injury (mTBI, also termed concussion) suffer from persistent post-concussion symptoms (PPCS) that degrade physical and cognitive…
- Conditions
- Autonomic Nervous System Disease, Concussive Injury, Mild Traumatic Brain Injury, Post Traumatic Stress Disorder
- Trial name
- NCT07071350
- Testing
- HRV Coherence Ratio, NSI, Pittsburgh Sleep Quality Index (PSQI)
- Where
- United States
- Volunteers
- 148 people
- Sponsor
- Virginia Commonwealth University
Autonomic Nervous System (ANS) Functioning and Mood State, Heart Rate Variability (HRV)
taVNS During Multi-site HRV Measurement: Reliability & Agreement Study
This study examines the reliability and agreement of autonomic nervous system measurements obtained from different anatomical sites during transcutaneous auricular vagus nerve stimulation (taVNS).
- Conditions
- Autonomic Nervous System (ANS) Functioning and Mood State, Heart Rate Variability (HRV), Blood Pressure Monitoring, Transcutaneous Electric Nerve Stimulation
- Trial name
- taVNS-HRV (NCT07548723)
- Testing
- Transcutaneous auricular vagus nerve stimulation
- Where
- Turkey (Türkiye)
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- SEFA HAKTAN HATIK