Clinical trials: Variability
Hydration
Feasibility of Using the Gatorade Sports Science Institute (GSSI) Labs App for Hydration Related Outcomes
This remote study will evaluate the feasibility of using the Gatorade Sports Science Institute (GSSI) Labs App for remotely collecting hydration related outcomes.
- Trial name
- NCT07005895
- Testing
- Hydration assessment via mobile app
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- PepsiCo Global R&D
Cardiogenic Shock,, With ECMO or IABP Support,
The Analysis of Heart Rate Variability With 24hrs Holter ECG and Serum Cardiac Fibrosis Markers in Critical Illness Patients Who Are With Cardiogenic Shock, With ECMO or IABP Support, or With APACH II Score >25)
The study is to show the prognostic factor of HRV parameter and cardiac fibrosis markers in critical illness patients
- Conditions
- Cardiogenic Shock,, With ECMO or IABP Support,, With APACH II Score >25)
- Trial name
- NCT01993745
- Where
- Taiwan
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Glaucoma
Variability in Perimetry Study
Improved Assessment of Visual Field Change is a trial aimed at investigating mechanisms of visual field testing variability. The investigators have found using larger stimulus size substantially lowers short-term variability.
- Trial name
- VIPII (NCT01051739)
- Testing
- Comparison of four visual field testing strategies
- Where
- United States
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Acromegaly, Growth Hormone Deficiency
Inter-Assay Growth Hormone and IGF-I Variability
The purpose of this study is to demonstrate the degree of variability in commercially available assays for Growth Hormone measurement in the context of clinical decision making for Growth Hormone (GH) deficiency and Acromegaly…
- Trial name
- NCT00638287
- Volunteers
- 171 people, healthy volunteers welcome
- Sponsor
- Cedars-Sinai Medical Center
Overweight and Obesity
Diet-Induced Variability in Appetite (DIVA)
The aim of this study is to test the hypothesis that dietary weight loss (WL) through alternate day fasting (ADF) will enhance appetite control, health markers and wellbeing following WL compared to standard daily calorie…
- Trial name
- DIVA (NCT03447600)
- Testing
- Alternate Day Fasting, Continuous dietary restriction
- Where
- United Kingdom
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- University of Leeds
Complications; Anesthesia, Spinal and Epidural, in Pregnancy
The Effect of the Timing of Colloid and Crystalloid Infusions on Postspinal Hypotension After Spinal Anesthesia for Caesarian Section
Prevention of postspinal hypotension after spinal anesthesia for caesarian section by use of preoperative or intraoperative volume replacement.
- Trial name
- NCT02680678
- Testing
- Colloid Preload, colloid co-load, Crystalloid preload
- Where
- Turkey (Türkiye)
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Balikesir University
Autonomic Nervous System Imbalance
The Impact of Working Night Shifts on Cardiac Autonomic Nervous Regulation During the Six-minute Walk Test in Nurses
To evaluate changes in heart rate variability (HRV) after the six-minute walk test (6MWT) in nurses following a night shift and explore the impact of night shift work on the regulation of the autonomic nervous system in the…
- Trial name
- NCT06542510
- Testing
- working night shift
- Where
- China
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Nanfang Hospital, Southern Medical University
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
End Stage Liver Disease, Rejection
Study of PD/PK/PG Relationships of Tacrolimus and Cyclosporin in Liver Transplant Patients
To search for suitable pharmacodynamic biomarkers, i.e., with high specificity for calcineurin inhibition and most affected by inter-individual variability, our works aimed at exploring the pharmacodynamics of CNI, the strength…
- Conditions
- End Stage Liver Disease, Rejection, Infection, Malignancy
- Trial name
- 3PIGREF (NCT01760356)
- Where
- Uruguay
- Volunteers
- 141 people, healthy volunteers welcome
- Sponsor
- UDA Centro Nacional Hepato-Bilio-Pancreático
Healthy
Efficacy, Transfer, and Neuro-functional Basis of a Memory Training Targeting Episodic Retrieval in Older Adults.
Aging leads to cognitive changes that affect memory, particularly episodic retrieval. These impairments are detrimental to seniors' quality of life.
- Trial name
- SPECTRA (NCT06110234)
- Testing
- Episodic Specificity Induction, Associative Memory
- Where
- Canada
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Centre de Recherche de l'Institut Universitaire de Geriatrie de Montreal
Healthy
Variability in the Measurement of WBCT Between Blood Drawn From Indwelling Catheters and Direct Venipuncture
1. Determine if there is any difference between the whole blood clotting time results obtained from blood drawn from indwelling catheters and direct venipuncture 2. Determine the intra-subject variability in both procedures
- Trial name
- NCT02207205
- Testing
- Blood drawn from indwelling catheters versus direct venipuncture
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Perosphere Pharmaceuticals Inc, a wholly owned subsidiary of AMAG Pharmaceuticals, Inc.
Kinesiophobia (Fear of Movement), Musculoskeletal Injuries
Binaural Beats Stimulation on the Autonomic Nervous System (ANS), Kinesiophobia and Fitness Levels in Professional Athletes With Musculoskeletal (MSK) Injuries
The purpose of the current study is to investigate the effectiveness of binaural beat stimulation on the autonomic nervous system (ANS), taking into account kinesiophobia related to reinjury and fitness levels in professional…
- Trial name
- ANS MSK HRV (NCT07370636)
- Testing
- Auditory stimulation with binaural beats and guidance, Auditory stimulation without binaural beats, Auditory stimulation with background music
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- University of West Attica
Nausea, Gastroparesis
Cereset Research For Chronic Nausea
This study will explore the use of Cereset Research for symptoms associated with refractory chronic nausea in patients with gastroparesis (GP) in a randomized, clinical trial.
- Conditions
- Nausea, Gastroparesis, Stress, Anxiety
- Trial name
- NCT05229107
- Testing
- Cereset Research
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Heart Rate Variability
Comparison of Heart Rate Variability Analysis Durations and Their Relationship With Blood Pressure
This observational study aims to compare heart rate variability (HRV) parameters obtained from different analysis durations in healthy adults and to examine how these parameters relate to resting blood pressure values.
- Trial name
- HRV-BP (NCT07531992)
- Testing
- Heart Rate Variability and Blood Pressure Assessment
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Sinop University
Lipid Metabolism, Substrate Metabolism
Body Composition and Lipid Metabolism at Rest and During Exercise: A Cross-Sectional Analysis.
The ability to upregulate fat oxidation at appropriate times such as during fasting, low to moderate intensity exercise and after a high fat meal, is popularly advocated.
- Conditions
- Lipid Metabolism, Substrate Metabolism, Exercise
- Trial name
- NCT03029364
- Testing
- Study Protocol
- Where
- United Kingdom
- Volunteers
- 114 people, healthy volunteers welcome
- Sponsor
- University of Bath
Functional Voice Disorder, Psychogenic Voice Disorder
Autonomic Dysfunction in Functional Dysphonia
The first objective of this research project is to compare the occurrence and frequency of symptoms and/or disorders related to autonomic dysfunction in patients with functional dysphonia with gender- and age-matched vocally…
- Conditions
- Functional Voice Disorder, Psychogenic Voice Disorder, Muscle Tension Dysphonia
- Trial name
- NCT06100601
- Testing
- ANS regulation therapy, conventional voice therapy (CVT), ANS regulation therapy + CVT
- Where
- Belgium
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University Ghent
Healthy Volunteer
The Accuracy and Efficacy of AI-driven tVNS Algorithm
Pain, including somatic and visceral pain, is a common symptom. Persistent pain can lead to repetitive visits to hospitals and can limit patients' daily activities, which can result in tremendous medical cost and lower quality of…
- Trial name
- NCT05215756
- Testing
- transcutaneous vagal nerve stimulation
- Where
- United Kingdom
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Queen Mary University of London
Atrial Septal Defect, Pulmonary Hypertension
Atrial Septal Defect - Exercise Capacity and Pulmonary Hypertension
The purpose of the study is to compare exercise capacity, cardiac contractility, pulmonary vascular pressures and heart rate variability between patients with an atrial septal defect and healthy controls.
- Trial name
- NCT03565471
- Testing
- Echocardiography, Right side catheterization, Exercise test
- Where
- Denmark
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Healthy, Blood Pressure
The Effectiveness of the Wim Hof Method
The Wim Hof Method is a multi-disciplinary approach to physical and mental well-being combining cold exposure, breathing exercises, and meditation.
- Conditions
- Healthy, Blood Pressure, Cold Exposure, Stress
- Trial name
- NCT05894031
- Testing
- Wim Hof Method
- Where
- Switzerland
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- University of Bern
Slip Perturbations
Variability and Specificity in Reactive Stabilization Movements to Diverse Slip Perturbations
Recent research on slips has shown that use of perturbation training to improve specific motor skills to resist slips can vastly reduce falls.
- Trial name
- NCT03755336
- Testing
- Administered Slip Perturbations
- Where
- United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- University of Nebraska