| Completed | Effects of Transcutaneous Vagus Nerve Stimulation in Older Adults NCT07292623 | Universidade da Coruña | N/A |
| Enrolling By Invitation | Evaluating the Feasibility, Acceptability, and Preliminary Outcomes of Heart Rate Variability Biofeedback for NCT07361731 | Arizona State University | N/A |
| Completed | Effects of Marching Exercise With Cognitive Training on Physical, Cognitive Function, and Autonomic Cardiovasc NCT07330700 | Chonticha Kaewjoho | N/A |
| Unknown | Heart Rate Variability of Premature Newborn NCT06217133 | Federal University of Uberlandia | N/A |
| Recruiting | Clinical Characteristics of Sleep Disorders in Patients With Ulcerative Colitis NCT06359808 | Xijing Hospital | — |
| Completed | Comparison of Transcutaneous Auricular Vagus and Trigeminal Nerve Stimulation NCT06730165 | Bahçeşehir University | N/A |
| Completed | The Impact of Working Night Shifts on Cardiac Autonomic Nervous Regulation During the Six-minute Walk Test in NCT06542510 | Nanfang Hospital, Southern Medical University | — |
| Enrolling By Invitation | Exercise Prescription in Cardiac Rehabilitation Mediated by Autonomic Function NCT07288840 | Instituto Politécnico de Leiria | — |
| Completed | Vagus Nerve Stimulation for Autonomic Nervous System Activity NCT05906940 | Bahçeşehir University | N/A |
| Completed | The Effect of Vagus Nerve Stimulation on Temporomandibular Joint Dysfunction NCT05500716 | Alper Percin | N/A |
| Recruiting | Auricular Vagal Nerve Stimulation for Hypermobile Ehlers-Danlos Syndrome NCT05212129 | Medical College of Wisconsin | N/A |
| Completed | Caffeine and the Autonomic Nervous System NCT04886869 | LMU Klinikum | N/A |
| Completed | Unobtrusive Technologies for Monitoring of Autonomic Nervous System Function in Elderly Frail Patients NCT04636970 | Lithuanian University of Health Sciences | N/A |
| Unknown | Brain Tissue Integrity and Autonomic Function Alterations in Childhood OSA and ADHD, and After Adenotonsillect NCT04732572 | Chang Gung Memorial Hospital | N/A |
| Completed | Percutaneous Electrical Nerve Field Stimulation for Adults With Irritable Bowel Syndrome NCT04428619 | University of California, Los Angeles | N/A |
| Unknown | Stochastic Modulated Vibrations on Autonomic Nervous System of Breast Cancer Patients During Radiotherapy NCT04125953 | Universitair Ziekenhuis Brussel | N/A |
| Completed | Autonomic Challenges From Mild Hypovolemia and Mechanical Ventilation NCT03244891 | ASST Fatebenefratelli Sacco | N/A |
| Unknown | Effects of Probiotic Supplementation in Hypertensive Women on Menopause NCT03955159 | Instituto de Cardiologia do Rio Grande do Sul | N/A |
| Completed | Effects of OMT on ANS: a Thermography Study NCT03888456 | Come Collaboration | N/A |
| Completed | HIRREM for Stage 1 Primary Hypertension NCT03479697 | Wake Forest University Health Sciences | N/A |
| Withdrawn | HIRREM for Pre-Hypertension NCT03332043 | Wake Forest University Health Sciences | N/A |
| Completed | Home-based Exercise Training in Cardiac Patients NCT03704025 | University of Oulu | N/A |
| Completed | Active and Passive Music Therapy Interventions NCT03362944 | University of North Carolina, Chapel Hill | N/A |
| Completed | Enhancing the Vagal Tone in Prediabetes Individuals NCT03616275 | National Defense Medical Center, Taiwan | N/A |
| Completed | Effects of Propofol Induction Anaesthesia on the Heart Rate Variability NCT03613961 | National Central University | — |
| Unknown | Lighting and Human Response in Motor Time, Autonomic Nervous System, and Emotion NCT03144791 | Mahidol University | — |
| Unknown | Brisk Walking Study in Nursing Home Residents NCT03302923 | Clinique Mutualiste Chirurgicale de la Loire | N/A |
| Completed | The Effect of Transcatheter Ventricular Septal Defect Closure on Heart Rate Variability Parameters NCT04859036 | Kayseri City Hospital | — |
| Completed | Metabolism and the Activity of the Autonomic Nervous System in Patients With Paroxystic Sympathetic Hyperactiv NCT03441009 | Region MidtJylland Denmark | — |
| Completed | Short-term Cardiovascular Benefits of Wearing Particulate-filtering Respirators NCT02238028 | Fudan University | N/A |
| Completed | Effect of CES on Parasympathetic Tone NCT02163967 | Weill Medical College of Cornell University | Phase 4 |
| Completed | Evaluation of the Six Minute Walk Test and Other Instruments in Heart Failure NCT01736137 | Federal University of Uberlandia | — |