| Not Yet Recruiting | Comparison of Heart Rate Variability Analysis Durations and Their Relationship With Blood Pressure NCT07531992 | Sinop University | N/A |
| Enrolling By Invitation | Continuous HRV Monitoring for Predicting Response to Biologic Therapy in IBD NCT07475052 | Xijing Hospital | — |
| Completed | Heart Rate Variability as a Predictor of Rebound Pain Following Total Knee Arthroplasty NCT06977191 | Konya City Hospital | — |
| Completed | Contactless Measurement of Heart Rate, Heart Rate Variability, Breathing Rate and Blood Pressure Using Remote NCT06829615 | SHEN.AI spółka z ograniczoną odpowiedzialnością oddział w Polsce | N/A |
| Recruiting | Exploring the Relationship Between Heart Rate Variability (HRV), Training Load, and Endurance Performance NCT06964100 | PepsiCo Global R&D | — |
| Not Yet Recruiting | Heart Rate Variability and Music Listening NCT06929208 | KK Women's and Children's Hospital | N/A |
| Not Yet Recruiting | Predicting Postoperative Delirium With Heart Rate Variability Obtained by Analgesia Nociception Index NCT06709482 | Medical University Innsbruck | — |
| Recruiting | Mechanisms And Prognosis of Stroke-Heart Syndrome NCT06954103 | Chensheng Pan | — |
| Recruiting | Modulation of the Inflammatory Response in Bariatric Surgery NCT06915558 | Hospital HM Nou Delfos | — |
| Recruiting | Effectiveness of Information Technology-Assisted Horticultural Therapy Program on Heart Rate Variability, Stre NCT06797804 | National Taipei University of Nursing and Health Sciences | N/A |
| Completed | Autonomic Responses of Amateur Child Athletes to Aerobic Exercise Test NCT06549192 | Inonu University | N/A |
| Not Yet Recruiting | Helping Overcome Pressure and Exhaustion: Empowerment Classes for Southeast Asian Migrant Care Workers NCT06532305 | National Taiwan University Hospital | N/A |
| Not Yet Recruiting | Mindfulness-Based Self-Compassion and Vagal Nerve Stimulation on Heart Rate Variability, Psychological Resilie NCT06501027 | İstanbul Yeni Yüzyıl Üniversitesi | N/A |
| Unknown | Vitamin B6 and Depression in Pregnant and Peri-partum Women NCT06445933 | National Taiwan University Hospital | N/A |
| Recruiting | Compare the Effects of Different AVNS Parameters on Neck Pain, HRV, Balance in Collegiate Atheletes NCT06450483 | University of Sharjah | N/A |
| Recruiting | Exploring the Relationship Between Heart Rate Variability (HRV), Training Load, and Exercise Performance NCT06425939 | PepsiCo Global R&D | N/A |
| Completed | Randomised Clinical Trial to Determine the Effect of Vagus Nerve Neurodynamics on the Neurovegetative Nerve Sy NCT06499662 | Marta de la Plaza | N/A |
| Active Not Recruiting | The Efficacy of Aerobic Exercise Training on Autonomic Nervous System and Endothelial Function in Patients wit NCT06288828 | King Chulalongkorn Memorial Hospital | N/A |
| Withdrawn | Cereset Research For Chronic Nausea NCT05229107 | Wake Forest University Health Sciences | N/A |
| Unknown | Effects of Warm Water Footbath Intervention on Sleep Quality , Fatigue and Heart Rate Variability in Patients NCT06287996 | Mackay Memorial Hospital | N/A |
| Completed | Online Yoga for Improving the Well-being of Desk-based Workers NCT06289426 | Kingston University | N/A |
| Recruiting | Effects of Zazen Meditation in Patients With Acute Myocardial Infarction - Randomized Clinical Trial NCT06562478 | Hospital de Clinicas de Porto Alegre | N/A |
| Completed | The Effects of Heart Rate Variability Biofeedback on College Students With Disordered Eating NCT06546163 | Arizona State University | N/A |
| Active Not Recruiting | Novel Mental Health Therapies to Improve Military Readiness NCT05887713 | David Moss | N/A |
| Completed | Music's Impact on Preoperative Anxiety: Heart Rate Variability Study During Cataract Surgery NCT06230029 | Azienda Ospedaliera Universitaria Mater Domini, Catanzaro | N/A |
| Recruiting | Effects of a Relaxation and Guided Imagery Intervention in School Context NCT06101225 | Universidade Autónoma de Lisboa | N/A |
| Recruiting | Effect of Atenolol Versus Ivabradine on HRV in TRS Patients on Clozapine With Tachycardia: A Randomised Contro NCT06505668 | All India Institute of Medical Sciences, Bhubaneswar | N/A |
| Completed | A Database for Emotion Analysis Using Physiological and Psychological Assessment by 40FY NCT06172673 | 40FY | — |
| Recruiting | The ECOSTRESS Study: Influence of the Objective Structured Clinical Examination on Stress Among Medical Studen NCT06138457 | University Hospital, Clermont-Ferrand | — |
| Completed | Effects of Yoga on Women with Breast Cancer NCT05869721 | The Hong Kong Polytechnic University | N/A |
| Recruiting | Eastern Principles Acceptance and Commitment Therapy For Injury Prevention Among Nurses and Nursing Aides NCT06813495 | Bowling Green State University | N/A |
| Completed | Contactless Measurement of Heart Rate, Heart Rate Variability and Breathing Rate Using Remote Photoplethysmogr NCT05889832 | SHEN.AI spółka z ograniczoną odpowiedzialnością oddział w Polsce | N/A |
| Completed | Effect on Markers of Cardiovascular, Reproductive and Cancer Risk From Firefighting Training NCT05753254 | National Research Centre for the Working Environment, Denmark | N/A |
| Unknown | Prognostic Factors for Ablation of Atrial Fibrillation NCT05716581 | Charles University, Czech Republic | — |
| Unknown | Effects of Natural Sounds on Attention Restoration in Virtual Reality NCT05679869 | Nanyang Technological University | N/A |
| Recruiting | Auricular Vagus Stimulation and Heart Rate Variability NCT05680337 | Bakulev Scientific Center of Cardiovascular Surgery | N/A |
| Completed | The Effect of Laser Acupuncture in Different Meridians on the Autonomic Nervous System and Its Brain Mechanism NCT05458713 | China Medical University, Taiwan | N/A |
| Completed | The Heart of the Community Study NCT05560893 | University of California, Irvine | N/A |
| Unknown | Effects of Natural Sounds on Attention Restoration Outdoors NCT05679882 | Nanyang Technological University | N/A |
| Recruiting | Obesity and Bariatric Surgery According to a Biopsychosocial Perspective. NCT05950698 | Rio de Janeiro State University | — |
| Completed | Emotion Regulation Training to Reduce Cardiovascular Disease Risk Among Depressed Young Adults in Southern Mis NCT05425290 | University of Southern Mississippi | N/A |
| Unknown | Sleep Quality, Stress Level and Heart Rate Variability of University Students NCT05296616 | İstanbul Yeni Yüzyıl Üniversitesi | N/A |
| Recruiting | Trajectory of Psychological Distress Among Infertility Women NCT04829877 | Taipei Medical University | N/A |
| Completed | Impact of Community-Based Biofeedback Program on Drug Use and Mental Health Among People Experiencing Homeless NCT05897580 | University of California, Irvine | N/A |
| Completed | Biomarkes Of Job STRess In Emergency Senior Physicians - Detection of Stressful Events NCT04334083 | University Hospital, Clermont-Ferrand | N/A |
| Unknown | Heart Rate Variability and Its Association With Symptom of Orthostatic Hypotension in Spinal Cord Injury NCT05982652 | Pusan National University Yangsan Hospital | — |
| Completed | Discussion on Pulse Diagnosis and Heart Rhythm Variability of Patients With Chronic Insomnia NCT05745519 | National Cheng-Kung University Hospital | — |
| Completed | Heart Rate Variability At the Emergency Department NCT05093439 | University Hospital, Ghent | — |
| Terminated | Heart Rate Variability and Stress Management Enhancement NCT04381182 | Joseph Maroon | N/A |
| Unknown | Cognitive Fatigue, Self-Regulation, and Academic Performance: A Physiological Study NCT05012293 | Nanyang Technological University | N/A |
| Unknown | Effects of Natural Sounds on Attention Restoration in Noisy Environment NCT05009784 | Nanyang Technological University | N/A |
| Unknown | Effects of Cognitive Fatigue on Heart Rate Variability and Skin Conductance NCT05011318 | Nanyang Technological University | N/A |
| Completed | The Impact of Re-training Following Detraining on Greco-Roman Wrestlers NCT06606977 | Tuba Melekoğlu | — |
| Unknown | The Relationship Between Heart Rate Variation and Athletic Performance in Basketball Players NCT04779034 | Ankara Yildirim Beyazıt University | N/A |
| Unknown | Factors and Characteristics of Heart Rate Variability in Runners NCT04909788 | Huazhong University of Science and Technology | — |
| Recruiting | JOB STRESS in OPHthalmology Physicians and Residents NCT04959838 | University Hospital, Clermont-Ferrand | N/A |
| Completed | Skin to Skin and Heart Rate Variability NCT05018910 | University of New Mexico | N/A |
| Unknown | The Physical and Psychologic Effects of Aromatherapy in Cancer Patients During Chemotherapy NCT04826601 | Show Chwan Memorial Hospital | N/A |
| Completed | Impact of Intra-Shift Napping on EMS Cardiovascular Health NCT04469803 | University of Pittsburgh | N/A |
| Completed | Exploring HRV in Antarctic Overwintering Members of Asia NCT06385782 | Ya-Wei Xu | — |
| Completed | The Effect of SGLT2 Inhibitors on Heart Rate Variability and BDNF Levels in Patients With Type 2 Diabetes NCT05164523 | Goztepe Training and Research Hospital | — |
| Completed | Autonomic Differences in Heart Rate Variability Between Healthy and Chronic Low Back Pain Subjects NCT06760390 | Universidad de Extremadura | — |
| Unknown | ANI-guided Intraoperative Analgesia in Low-pressure Anesthesia NCT04319913 | Mackay Memorial Hospital | N/A |
| Completed | The Effects of Heart Rate Variability Biofeedback Training on Hematopoietic Cell Transplantation Patients NCT04275830 | Arizona State University | N/A |
| Completed | Comparative Analysis of Heart Rate Variability in Patients with Cervical Pain, Lumbar Pain, and Healthy Contro NCT06890793 | Universidad de Extremadura | — |
| Completed | Effects of Overnight Low Oxygen Exposure on Energy Balance NCT04151927 | Florida State University | N/A |
| Completed | Analysis of Heart Rate Variability During Emergency Flight Simulator Missions in Fighter Pilots NCT04487899 | Universidad de Extremadura | — |
| Unknown | Non-invasive Modulation of Autonomic Cardiac Nervous System NCT04057508 | Université Catholique de Louvain | N/A |
| Completed | Emergence Agitation in Paediatric Day Care Surgery NCT06571890 | University of Southern Denmark | N/A |
| Completed | Effect of Feet and Calf Heating on Glucose Tolerance NCT04232098 | San Diego State University | N/A |
| Unknown | RCT Comparing EMDR and CBT for Treatment of Resistant Depression NCT03972033 | University of Turin, Italy | N/A |
| Unknown | Arrhythmias in Pulmonary Hypertension Assessed by Continuous Long-term Cardiac Monitoring NCT04554160 | Rigshospitalet, Denmark | — |
| Unknown | Vitamin D and Health Outcomes in Preterm Born Population NCT04342078 | University of Oulu | — |
| Unknown | Effects of Repetitive Transcranial Magnetic Stimulation on Heart Rate Variability NCT03739489 | University of Sao Paulo | N/A |
| Completed | Low Intensity Exercise in Different Normobaric/Hypobaric Normoxic/Hypoxic Conditions. NCT03439202 | Fliegerärztliches Institut | N/A |
| Terminated | Heart Rate Variability and Emotion Regulation NCT03458910 | University of Southern California | N/A |
| Completed | Caretaker Hemodynamic Parameters Validation NCT04685733 | CareTaker Medical LLC | — |
| Completed | Effect of Caffeine on Heart Rate Variability in Newborns NCT04869176 | University of Ljubljana | N/A |
| Completed | Short- and Long-term HRV Measurements After Osteopathic Myofascial Thoracic Manipulations NCT04234958 | Université du Québec a Montréal | N/A |
| Unknown | Effects of a Thermal Spa Short Residential Program for Prevention of Work-related Stress / Burn-out on Biomark NCT03536624 | University Hospital, Clermont-Ferrand | N/A |
| Completed | Effects of Arm Crank Versus Treadmill Exercises on Heart Rate Variability in Adult Subjects. NCT03068182 | Imam Abdulrahman Bin Faisal University | N/A |
| Completed | Does Heart Rate Variablity (HRV) Predict Hypotension in Patients Undergoing Cervical Myelopathy Surgery ? NCT02360085 | Lashmi Venkatraghavan | — |
| Completed | Mind-Body Walking Exercise for Chronic Obstructive Pulmonary Disease NCT03388489 | National Taiwan University Hospital | N/A |
| Completed | The Effect of Spinal Anesthesia on Heart Rate Variability in Diabetic Patients NCT02137057 | Yonsei University | — |
| Completed | The Effect of Eye Movement Desensitization and Reprocessing Intervention in Hypertension Patient. NCT05836181 | Miao-Yi Chen | N/A |
| Completed | Air Pollution, Epigenetics and Cardiovascular Health: A Human Intervention Trial NCT01864824 | Harvard School of Public Health (HSPH) | Phase 1 |
| Completed | Osteopathic Manipulative Treatment Effects on High Frequency Parameters in Healthy Subjects NCT01908920 | European Institute for Evidence Based Osteopathic Medicine | N/A |
| Completed | Perioperative Changes of Heart Rate Variability Related to Anxiety and Depressiveness in Patients Undergoing G NCT02011074 | Samsung Medical Center | — |
| Unknown | Heart Rate Variability in Extracorporeal Membrane Oxygenation (ECMO) Patients NCT01247727 | National Taiwan University Hospital | — |
| Completed | Effects of Yoga on Heart Rate Variability and Mood in Women NCT02153385 | Kaohsiung Medical University | N/A |
| Completed | Heart Rate Variability of Patients With Bipolar Disorder in Subsyndromal Depressive Phase NCT01455038 | Asan Medical Center | — |
| Unknown | Heart Rate Variability in Chronic Kidney Disease Patients NCT00824577 | National Taiwan University Hospital | — |
| Completed | Reducing the Pro-ischaemic Effects of Air Pollution Exposure Using a Simple Face Mask NCT00809653 | University of Edinburgh | N/A |
| Completed | Effects of Exposure to Biomass-burning Air Pollution on Lung Function, Heart Rate Variability and Inflammatory NCT01371188 | InCor Heart Institute | — |
| Completed | The Cardiovascular Benefits of Reducing Personal Exposure to Air Pollution NCT00809432 | University of Edinburgh | N/A |
| Completed | Intravenous Beta-blockade for Improvement of Autonomic Activity NCT00700466 | University Hospital Schleswig-Holstein | — |
| Completed | High Resolution Phenotyping in Healthy Humans NCT00943774 | Mayo Clinic | — |