Clinical trials: Sympathetic Activity
Physical Activity, Sympathetic Nervous System
Neuropeptide Y and Sympathovagal Balance
Neuropeptide Y (NPY) activates the sympathetic and vagal nervous systems through the Y1 and Y2 receptors. This double-blind placebo-controlled crossover study investigated the sympathovagal balance during three exercises on a…
- Conditions
- Physical Activity, Sympathetic Nervous System, Secretion; Catecholamine
- Trial name
- NPY (NCT03933787)
- Testing
- Saxagliptin 5mg, ergometric test in healthy volunteers
- Where
- Switzerland
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Eric Grouzmann
Cardiomyopathy
Characterization of Sympathetic Nerve Activity in Stress Cardiomyopathy
Stress (Takotsubo) cardiomyopathy (SC) is a peculiar form of acute, reversible myocardial dysfunction predominantly affecting the apical and mid left ventricular segments.
- Trial name
- NCT01048125
- Testing
- Sympathetic Nerve Activity, Mental Stress Test (Color Word Test), The Modified Oxford Technique for Baroreflex Sensitivity
- Where
- United States
- Volunteers
- 2 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Cerebrovascular Accident, Spinal Cord Injury
Measurement of Pulse Wave Velocity in Spinal Cord Injury and Stroke Patients
According to the theory of wave transmission, the speed of wave transmission is dependent on the nature of the transmission medium, which is the vessel wall for pulse wave transmission.
- Trial name
- NCT00172289
- Where
- Taiwan
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Polycystic Ovary Syndrome
Polycystic Ovary Syndrome (PCOS) - Effect Of Physical Exercise And Electroacupuncture
Hypothesis: The overall hypothesis is that women with PCOS, both obese and non-obese, have larger adipocytes, altered metabolism and signs of inflammation in adipose tissue and that these changes are associated with high…
- Trial name
- PCOSNTS (NCT00484705)
- Testing
- Electroacupuncture, Physical exercise, Untreated control
- Where
- Sweden
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Göteborg University
COPD, Sympathetic Nervous System Diseases
Sympathetic Nerve Activity Predictors in Patients With Chronic Obstructive Pulmonary Disease
The project will be pursued in our respiratory, autonomic nervous system physiology laboratory (Respiratory, autonomic nervous system physiology laboratory, Department of Pneumology and Intensive Care Medicine, RWTH Aachen…
- Conditions
- COPD, Sympathetic Nervous System Diseases, Catecholamine; Overproduction
- Trial name
- SNAP-COPD (NCT04849806)
- Testing
- Assessments of the sympathetic nerve activity axis, OSA severity, Determination of PH and right HF severity
- Where
- Germany
- Volunteers
- 135 people, healthy volunteers welcome
- Sponsor
- RWTH Aachen University
Diabetes Mellitus
Sympathetic Nerve Activity During Hypoglycemia and Exercise
The purpose of this study is to determine if either hypoglycemia or exercise cause differential responses in muscle and skin sympathetic nerve activity.
- Trial name
- NCT00608348
- Testing
- Hyperinsulinemic glucose clamp procedures, moderate exercise
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Healthy
Effects of Manual vs Instrument-assisted Manipulation on Electromyographic Activity and Sympathetic Nervous System
This study evaluates the effects of manual and instrument-assisted cervical manipulation on electromyographic activity and sympathetic nervous system.
- Trial name
- NCT03736148
- Testing
- Manual Manipulation, Instrument-assisted Manipulation
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Escola Superior de Tecnologia da Saúde do Porto
Primary Dysmenorrhea
Heart Rate Variability as an Indicator Associated With the Improvement of Dysmenorrhea After the Warm-water Footbath
The effect of warm-water footbath in improving primary dysmenorrhea (PD) was rarely investigated previously. We aimed to exam the hypothesis that warm-water footbath is effective to reduce the pain of PD, and the effect is…
- Trial name
- NCT04071028
- Testing
- warm-water footbath
- Volunteers
- 68 people, healthy volunteers welcome
- Sponsor
- Camillians Saint Mary's Hospital Luodong
Takotsubo Cardiomyopathy
Sympathetic and Vascular Function in Takotsubo Syndrome
The primary objective of this prospective, observational study is to compare muscle sympathetic nerve activity at rest and during stress between female patients with Takotsubo syndrome and healthy, matched volunteers.
- Trial name
- SAFT (NCT05768542)
- Testing
- Metoprolol Injection, Saline
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Danderyd Hospital
Healthy, Vasodilation
Impact of Intranasal Insulin on Sympathetic Activity and Cerebral Vasodilation
The purpose of this project is to examine the impact of increases in brain insulin on sympathetic nervous system activity, as well as peripheral and cerebral blood flow in humans.
- Conditions
- Healthy, Vasodilation, Insulin Resistance, Autonomic Dysfunction
- Trial name
- NCT05153395
- Testing
- Carbon dioxide breathing, Neurovascular Coupling, Human insulin
- Where
- United States
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Menopause, Hot Flashes
Time-Efficient Inspiratory Muscle Strength Training for Reducing Sympathetic Activity and Improving Sleep in Midlife Women
The purpose of this research is to understand how training the muscles used for breathing (inhalation) affects menopausal hot flashes, sympathetic nerve activity and sleep.
- Conditions
- Menopause, Hot Flashes, Blood Pressure Regulation
- Trial name
- NCT06743269
- Testing
- High-Resistance Inspiratory Muscle Strength Training, Low-Resistance Inspiratory Muscle Strength Training, POWERbreathe K3 device
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Sympathetic Nerve Activity
Skin Sympathetic Nerve Activity and Cardiac Arrhythmias
Since the invention of electrocardiogram (ECG), ECG has been an important part of clinical practice. A primary reason for the popularity of the ECG is that it is non-invasive and can be performed in any patient by placing…
- Trial name
- NCT02939469
- Testing
- Physiologic maneuvers
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Cedars-Sinai Medical Center
Sympathetic Nerve Activity
Noninvasive Measurement of Sympathetic Nerve Activity in Healthy Volunteers
Activation of the sympathetic nervous system is associated with increased risk of ventricular arrhythmias and sudden cardiac death (SCD).
- Trial name
- NCT02264262
- Testing
- Physiologic maneuvers
- Where
- United States
- Volunteers
- 4 people, healthy volunteers welcome
- Sponsor
- Cedars-Sinai Medical Center
Sleep Deprivation
Cardiovascular Effects of Partial Sleep Deprivation
Background: Sleep curtailment is common and is associated with increased mortality due to cardiovascular causes. However, the mechanisms are not completely understood.We hypothesized that partial sleep deprivation caused however…
- Trial name
- NCT00669513
- Testing
- Partial sleep deprivation
- Where
- Brazil
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University of Sao Paulo
Alcohol Drinking, Binge Drinking
Reducing Blood Pressure in Mid-life Adult Binge Drinkers
This study has two phases: Phase 1 is to examine blood pressure, microvascular function, and sympathetic nerve activity in mid-life adult binge drinkers vs. alcohol abstainers/moderate drinkers.
- Conditions
- Alcohol Drinking, Binge Drinking, Blood Pressure, Alcohol Abstinence
- Trial name
- NCT05522075
- Testing
- Exercise Training, Alcohol Abstinence Intervention
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- The University of Texas at Arlington
Sympathetic Nervous System
Sympathetic Nerve Activity and Strength Gains in Resistance Versus Concurrent Training
This study examines how the body's stress (sympathetic) nervous system responds to 8 weeks of either strength training alone or strength training combined with endurance (treadmill running) training in previously untrained young…
- Trial name
- SKNA-CT (NCT07680387)
- Testing
- Strength-only training, Concurrent training
- Where
- China
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Beijing Sport University
Exercise, Cognition
Sympathetic Nervous System Mediation of Acute Exercise Effects on Childhood Brain and Cognition
Today's children have become increasingly inactive and unfit, with >50% of children not meeting the recommended 60 min of moderate-to-vigorous physical activity.
- Trial name
- NCT03592238
- Testing
- Aerobic Exercise Intervention, Trier Social Stress Test for Children, Seated Rest
- Where
- United States
- Volunteers
- 297 people, healthy volunteers welcome
- Sponsor
- Northeastern University
Leiomyoma
Vascular Function and Uterine Fibroids
The purpose of this study is to learn how uterine fibroids may be connected to heart disease and high blood pressure. It is not known what causes fibroids, but they frequently occur in women who also have high blood pressure…
- Trial name
- NCT02123069
- Testing
- Brachial artery catheter, Acetylcholine, Nitroprusside
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Obstructive Sleep Apnea
Weight Loss and Obstructive Sleep Apnea
The purpose of this study is to evaluate the effects of moderate energy restriction on the body adiposity, severity of OSA, blood pressure, sympathetic activity, oxidative stress, inflammatory biomarkers, metabolic profile and…
- Trial name
- NCT02206126
- Testing
- Energy Restriction
- Where
- Brazil
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- Rio de Janeiro State University
Obesity, Metabolic Syndrome X
The Potential Role for Adenosine in the Haemodynamic Effects of Free Fatty Acids
The metabolic syndrome is associated with hyperdynamic circulation and sympathetic activation. Recently, Bakker et al. (Atherosclerosis 2002) described the hypothesis that free fatty acids are responsible for this association.
- Trial name
- NCT00184899
- Testing
- Intravenous infusion of Intralipid/heparin, Intravenous infusion of Glycerol/heparin
- Where
- Netherlands
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Radboud University Medical Center