Clinical trials: Variability
Autonomic Nervous System, Nerve Block
Heart Rate Variability and Electroencephalography Analysis in Laparoscopic Surgery With or Without Transversus Abdominis Plane Block
Heart rate variability(HRV) and electroencephalography(EEG) has been used widely in anesthetic practice nowadays. One of the most dominant applications is the nociception-analgesia balance.
- Conditions
- Autonomic Nervous System, Nerve Block, Laparoscopy, Anesthesia and Analgesia
- Trial name
- NCT04539080
- Testing
- transversus abdominis plane block
- Where
- Taiwan
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Mackay Memorial Hospital
Healthy
Influence of an Inspiratory Muscle Fatigue Protocol on Older Adults on Respiratory Muscle Strength and Heart Rate Variability
Respiratory muscle training represents an effective method increasingly utilized in both sports and healthcare domains, employing various devices, among which threshold devices are prominent.
- Trial name
- NCT06269042
- Testing
- Inspiratory muscle training
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Sierra Varona SL
Infant Conditions, Glucose Intolerance
Monitoring of Postprandial Glycemic Variability in Healthy Young Infants
To measure and quantify the postprandial glucose variations in response to a meal in the healthy 6-12 months old child and correlate this response with the composition of this meal.
- Trial name
- IGVM (NCT03819725)
- Testing
- Glucose monitoring
- Where
- Switzerland
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Lausanne Hospitals
Intraoperative Monitoring, Hypovolemia
Interest of the Pleth Variability Index in Neurosurgery
This clinical trial aims to study the interest of the Pleth Variability Index (PVI) to evaluate perioperative fluid responsiveness in neurosurgery in adults.
- Conditions
- Intraoperative Monitoring, Hypovolemia, Fluid Challenge
- Trial name
- NCT06624891
- Testing
- perioperative fluid responsiveness with the Pleth variability index, perioperative fluid responsiveness with delta PP
- Where
- Tunisia
- Volunteers
- 70 people
- Sponsor
- National Institute of Neurology, Tunisia
Chronic Obstructive Pulmonary Disease, Exercise
Mind-Body Walking Exercise for Chronic Obstructive Pulmonary Disease
Mind-body exercise improves symptom of negative moods, dyspnea and quality of life in chronic diseases, but these improvements for chronic obstructive pulmonary disease (COPD) are unproven.
- Conditions
- Chronic Obstructive Pulmonary Disease, Exercise, Anxiety, Depression
- Trial name
- NCT03388489
- Testing
- Mind-Body Walking
- Volunteers
- 84 people
- Sponsor
- National Taiwan University Hospital
Healthy
Anthropometric Normalization in Inter-Individual Variability of Comprehensive Isokinetic Strength Assessment
Accurate normalization of peak torque (PT) is critical for comparing muscle strength across individuals of varying body composition.
- Trial name
- PT (NCT07508150)
- Testing
- effects of BW versus BMI normalization on inter-individual variability of trunk, hip, and knee muscle strength in healthy female
- Where
- Egypt
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- Cairo University
High Intensity Interval Training (Cycling), High Intensity Interval Training (Running)
Acute Effects of High-intensity Interval Aerobic and Functional Training at Different Intensities
Moderate-intensity physical exercise is widely recognized for its health benefits, yet time constraints limit adherence. High-intensity interval training (HIIT) has gained popularity as a more time-efficient alternative…
- Conditions
- High Intensity Interval Training (Cycling), High Intensity Interval Training (Running), High Intensity Functional Training, Moderate Intensity Functional Training
- Trial name
- HIIT-HIFT-FT (NCT07180550)
- Testing
- High-intensity interval training, running, High-intensity interval training, cycling, High-intensity functional training
- Where
- Spain
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- European University Miguel de Cervantes
Cerebral Small Vessel Diseases
Effects of Remote Ischemic Conditioning on Dynamic Cerebral Autoregulation, Blood Pressure and Heart Rate Variability in Patients With Cerebral Small Vessel Disease
The purpose of this study is to determine effects of remote ischemic conditioning on dynamic cerebral autoregulation, blood pressure and heart rate variability in patients with cerebral small vessel disease.
- Trial name
- ESCAPE-SVD (NCT05225948)
- Testing
- Remote ischemic conditioning
- Where
- China
- Volunteers
- 100 people
- Sponsor
- Yi Yang
Hyperglycemia
Association Between Blood Glucose Indicators and Heart Rate Variability in Non-diabetic Critically Ill Patients
Heart rate variability (HRV) is a simple way to check how well the body's automatic nervous system is working. It does this by looking at how the heart rate changes in the electrocardiogram.
- Trial name
- NCT07198308
- Where
- China
- Volunteers
- 20 people
- Sponsor
- Shanghai Zhongshan Hospital
Cluster Headache, Sleep
Actigraphy and Nocturnal Heartrate Variability in Cluster Headache Patients
Cluster headache is one of the most painful headaches, characterized by recurring episodes of unilateral, periorbital pain, which is accompanied by autonomic symptoms that seem to be of both sympathetic and parasympathetic…
- Trial name
- NCT03010189
- Testing
- Actigraphy, Heart-rate variability monitoring, Pupillometry
- Where
- Norway
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Nordlandssykehuset HF
Diabetes, Arrhythmias
Association Between Cardiac ARRHYTHMIAs and Glycemic Variability in Patient With Type 2 Diabetes Monitored Through FREEstyle Libre and Bluetooth Technology.
The aim of this study is to investigate the association between hypoglycemia, glycemic variability and cardiac arrhythmias in patients with diabetes Type II (T2D) already implanted with implantable cardiac defibrillator (ICD) and…
- Conditions
- Diabetes, Arrhythmias, Atrial Fibrillation, Heart Failure
- Trial name
- ARRHYTHMIAFREE (NCT05994755)
- Where
- Italy
- Volunteers
- 58 people
- Sponsor
- Antonio Rapacciuolo
Developing Novel Technique of Measuring C/D Ratio From Digital Stereo Optic Disc Images, Intraobserver Reproducibility of C/D Measurements
A New Reproducible Method of Measuring C/D Ratio of Digital Stereo Images of Optic Disc
Development of a novel computer software that will assist in measuring the cup/disc ratio in digital stereo optic disc images.
- Conditions
- Developing Novel Technique of Measuring C/D Ratio From Digital Stereo Optic Disc Images, Intraobserver Reproducibility of C/D Measurements, Interobserver Variability of C/D Measurements
- Trial name
- NCT01683942
- Volunteers
- 250 people
- Sponsor
- Meir Medical Center
Type 2 Diabetes
Characterization of the Variability of Insulin Secretory Parameters in the Meal Tolerance and the Maximal Stimulation Tests of Healthy Subjects
A multi-year clinical study to improve tools for measuring the function of insulin-producing beta cells in people with type 2 diabetes mellitus.
- Trial name
- NCT01454973
- Where
- United States
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Foundation for the National Institutes of Health
Massage, Anaerobic Exercise
Acute Effect of Foot Reflexology Massage on Heart Rate Variability and Arterial Pulse Waveform
Foot reflexology treatment provides acute and chronic effects on cardiovascular and hemodynamic functions. However, no information is available to us in regarding the treatment effect of foot reflexology after exercise.
- Conditions
- Massage, Anaerobic Exercise, Aerobic Exercise
- Trial name
- NCT03821805
- Testing
- Foot reflexology massage
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- University of Taipei
Anxiety Disorder, Mood Disorder
Does Spiritual/Religious Commitment Mediate the Relationship Between Mood Variability and Suicidal Ideation.
The purpose of this study is to determine whether or not spiritual and/or religious commitment affects mood variability and thoughts of suicide.
- Trial name
- NCT00225459
- Where
- Canada
- Volunteers
- 200 people
- Sponsor
- University of Saskatchewan
Rowing
Comparison of the Effects of Long-Term Rowing Training in Professional Rowers
This study aims to compare the effects of long-term rowing training on aerobic capacity, physical fitness, heart rate variability, and psychological performance in novice rowers, professional rowers, and healthy controls.
- Trial name
- NCT07752927
- Testing
- Rowing Ergometer Training for Novice Rowers, High-Performance Rowing Ergometer Training
- Where
- Turkey (Türkiye)
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Hacettepe University
Critically Ill
Cardioventilatory Coupling in Critically Ill Patients
This study measures the cardioventilatory coupling in critically ill patients during mechanical ventilation in controlled mode (pressure controlled) and in patient-driven mode (pressure support and neurally adjusted ventilatory…
- Trial name
- NCT02286869
- Testing
- Three different mechanical ventilation modes
- Where
- 2 sites in Italy
- Volunteers
- 22 people
- Sponsor
- ASST Fatebenefratelli Sacco
Hearing Loss
Individually-guided Hearing Aid Fitting
This translational project aims to optimize the fitting of hearing aids by development and clinical validation of a toolset that guides signal processing choice based on the individual auditory and cognitive abilities of the…
- Trial name
- NCT03345654
- Testing
- Hearing Aids
- Where
- United States
- Volunteers
- 42 people
- Sponsor
- Northwestern University
Healthy Adult Participants, Acute Stress Reaction
Breathwork and Stress: Investigating the Mechanisms of Action and Effectiveness of Breathing Interventions in Modulating the Psychophysiological Response to Acute Stress Test
This study investigates whether the psychophysiological benefits of breathing exercises are driven by a specific physiological rhythm (6 breaths per minute) or by the general psychological experience of performing a structured…
- Conditions
- Healthy Adult Participants, Acute Stress Reaction, Stress Biomarkers, Healthy
- Trial name
- NCT07529379
- Testing
- Coherent Breathing (6 bpm)
- Where
- Poland
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Medical University of Bialystok
Hearing Loss, Sensorineural, Dementia of Alzheimer Type
Characterizing Variability in Hearing Aid Outcomes in Among Older Adults With Alzheimer's Dementia
This current translational project, funded by NIH, aims to better understand the impact of various signal modification strategies for older adults with Alzheimer's dementia and its potential precursor, known as amnestic mild…
- Conditions
- Hearing Loss, Sensorineural, Dementia of Alzheimer Type, Amnestic Mild Cognitive Impairment
- Trial name
- NCT04240561
- Testing
- High level of signal manipulation, Low level of signal manipulation
- Where
- 2 sites in United States
- Volunteers
- 20 people
- Sponsor
- Northwestern University
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