Clinical trials: Variability
Vestibular Schwannoma, Inner Ear Disease
Vestibular Precision: Physiology & Pathophysiology
This project will investigate the role of noise in the vestibular system, and in particular its effects on the variability (precision) of vestibular-mediated behaviors.
- Conditions
- Vestibular Schwannoma, Inner Ear Disease, Dizziness, Neurofibromatosis 2
- Trial name
- NCT04890132
- Testing
- VOR precision training
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Massachusetts Eye and Ear Infirmary
Athletic Performance, Aerobic Capacity
Individualized Training to Improve Aerobic Capacity and 2,000 m Rowing Performance in Youth Rowers
The goal of this randomized clinical trial is to learn whether an individualized rowing training program based on ventilatory thresholds can improve aerobic capacity and 2,000 m rowing performance in youth rowers from Valdivia…
- Conditions
- Athletic Performance, Aerobic Capacity, Rowing Performance
- Trial name
- NCT07602244
- Testing
- Individualized Rowing Training, Usual Rowing Training
- Where
- Chile
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Universidad San Sebastián
Blood Pressure, Heart Rate Variability
The Cardiovascular Benefits of Reducing Personal Exposure to Air Pollution
Exposure to air pollution is an important risk factor for cardiovascular morbidity and mortality, and is associated with increased blood pressure, reduced heart rate variability, endothelial dysfunction and myocardial ischaemia.
- Trial name
- NCT00809432
- Testing
- Face mask (Dust Respirator), No Face mask
- Where
- China
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Dietary Habits, Lead Poisoning
Dietry Pattern and Lead Levels in Pregnancy
During pregnancy lead crosses the placenta freely and can have adverse effects on the fetus, with the potential for life-long impact on the child.
- Conditions
- Dietary Habits, Lead Poisoning, Pregnancy Related
- Trial name
- NCT03408275
- Testing
- None - observational
- Volunteers
- 2,167 people, healthy volunteers welcome
- Sponsor
- University of Bristol
Cystic Fibrosis
Glycemic Monitoring in Cystic Fibrosis
Current guidelines on the diagnoses and management of cystic fibrosis (CF) related diabetes recommend treatment for diabetes based on diagnostic criteria derived from adults with type 2 diabetes.
- Trial name
- GEM (NCT02211235)
- Where
- United States
- Volunteers
- 146 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Accidental Falls
Trial to Reduce Falls Incidence Rate in Frail Elderly
Background: Approximately 750,000 elderly Dutch people fall at least once a year, which often results in physical injuries and a fear of falling, with high costs and far-reaching consequences on functionality, physical activity…
- Trial name
- CP (NCT00512655)
- Testing
- Fall prevention course
- Where
- 3 sites in Netherlands
- Volunteers
- 320 people, healthy volunteers welcome
- Sponsor
- Radboud University Medical Center
Heart Rate Control, Recovery Following Exercise
Recovery of Heart Rate Variability in Handball Players
This study aimed to compare the acute effects of manual massage (MM) and foam rolling (FR) on heart rate variability (HRV) following a 20 m shuttle run test (20m-SRT) in elite male handball players.
- Trial name
- HRV-HANDBAll (NCT07648966)
- Testing
- Manul Massage (MM), Foam Rolling (FR)
- Where
- Turkey (Türkiye)
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Uludag University
Drug Metabolism Phenotype
Biomarkers of CYP2D6 and CYP3A4 Variability in Pediatrics
Cytochrome P450 2D6 (CYP2D6) is an important enzyme in the body for breaking down many medications that are commonly used in children of various ages.
- Trial name
- NCT01118858
- Where
- 2 sites in United States
- Volunteers
- 205 people, healthy volunteers welcome
- Sponsor
- Children's Mercy Hospital Kansas City
Ventricular Septal Defect, Closure; Interventricular Septum
The Effect of Transcatheter Ventricular Septal Defect Closure on Heart Rate Variability Parameters
In this study; we evaluated the heart rate variability parameters of pediatric patients whose VSDs were closed with the transcatheter method before and after, and compared with the control group.
- Conditions
- Ventricular Septal Defect, Closure; Interventricular Septum, Autonomic Nervous System Imbalance
- Trial name
- NCT04859036
- Testing
- 24 hours ambulatory Holter monitoring
- Where
- Turkey (Türkiye)
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Kayseri City Hospital
Autism Spectrum Disorder With Intellectual Deficiency
Recording Stress Biomarkers in Autism Spectrum Disorders
The goal of this observational study is to learn how stress affects children and young people with autism spectrum disorder (ASD).
- Trial name
- STRESSDEFIS (NCT07535801)
- Where
- France
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Universite Cote d'Azur
Asthma in Children, Lung Function Decreased
Lung Function Variability in Children and Adolescents
Long-term variability analysis of peak expiratory flow (PEF) and forced expiratory volume in 1 s (FEV1) has been successfully used in research to predict the exacerbation of the disease in adult individuals with asthma.
- Trial name
- LUV (NCT04163146)
- Testing
- Measurements of PEF and FEV1
- Where
- Greece
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Patras
Healthy, Swimming
EFFECTS OF FOAM ROLLING ON HRV IN ELITE SWIMMERS
The present study aimed to evaluate the effects of foam rolling (FR) on recovery by examining selected time-domain and frequency-domain heart rate variability (HRV) parameters in elite swimmers following intensive interval sprint…
- Conditions
- Healthy, Swimming, Autonomic Nervous System Function, Recovery
- Trial name
- HRV-SWIMMING (NCT07641062)
- Testing
- Swimming+FoamRollingRecovery, SwimmingRecovery
- Where
- Turkey (Türkiye)
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Uludag University
Stress, Physiological, Sport Injury
Immediate Effect of Non-invasive Auricular Acupoint Stimulation for the Performance and the Meridian Activities of Archery Athletes
In our hypothesis, auricular acupoint stimulation might improve the attention and heart rate variability in archery athletes. The meridian activities regarding the attention and action in Chinese medicine systems might be…
- Trial name
- NCT04637607
- Testing
- Auricular acupoints stimulation
- Where
- Taiwan
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital
Athletic Performance, Mental Toughness
Effects of Imagery and Breathing Exercises on Swimmers' Performance, Mental Toughness, and Heart-Mind Coherence
This randomized controlled trial aimed to investigate the effects of a 10-week imagery and breathing exercise intervention on 200-meter freestyle swimming performance, mental toughness, and heart-mind coherence in swimmers.
- Conditions
- Athletic Performance, Mental Toughness, Coherence (Heart-Mind Synchronization)
- Trial name
- NCT06920875
- Testing
- Imagery and Breathing Exercises
- Where
- Turkey (Türkiye)
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Ankara Yildirim Beyazıt University
HRV, Psychological Adaptation
Weight Cut Stress: the Hidden Struggle Beyond Fight Day
This study investigated the effects of rapid weight-cutting on stress in elite kickboxers by analyzing Heart Rate Variability (HRV) and subjective stress levels using a Visual Analog Scale (VAS).
- Trial name
- NCT06860204
- Where
- Turkey (Türkiye)
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Erzurum Technical University
Diabetes Mellitus, Type 1
Assess the Impact of Insulclock on Glycemic Variability and Treatment Compliance in Uncontrolled DM1 Patients
Insulclock® is a small electronic device developed to facilitate the optimal administration of insulin. This device works as an add-on module of commercially available insulin pens and monitors the date, time and dose of…
- Trial name
- Segoclock2 (NCT04847778)
- Testing
- Use of Insulclock system, both Insulclock device and Insulclock 360 app., Use of Insulclock system, both Insulclock device and Insulclock app on masked mode.
- Where
- 4 sites in Spain
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Hospital General de Segovia
Type 1 Diabetes
Expanding Coverage of Continuous Subcutaneous Insulin Infusion in Pediatric Patients With Diabetes
The purpose of the study is to present evidence based literature and clinical data to the medical directors at Missouri Medicaid to help modify the existing policy regarding insulin pump therapy in pediatric patients with…
- Trial name
- NCT00829062
- Testing
- Continuous glucose glucose sensor- physician ordered
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Children's Mercy Hospital Kansas City
Pectus Excavatum, Autonomic Dysfunction
Autonomic Dysfunction in Patients With Pectus Excavatum.
Investigators conducted a pilot study to to evaluate the autonomic function in participants with pectus excavatum before and after Nuss surgery.
- Conditions
- Pectus Excavatum, Autonomic Dysfunction, Surgery
- Trial name
- ADPE (NCT03346876)
- Testing
- Nuss surgery
- Where
- Taiwan
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation
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
Heart Rate Control, Athlete
HRV-based Training Effects in Athletes
Monitoring individual responses to training is an important key factor to prescribe to most effective training programs. Heart-rate variability (HRV) could be used for monitoring the training status of endurance athletes in order…
- Conditions
- Heart Rate Control, Athlete, Emotions
- Trial name
- HRV-btA (NCT04150952)
- Testing
- HRV-based training, TRAD training
- Where
- Spain
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Universidad de Almeria