Clinical trials: Hyperventilation
Exercise Induced Bronchospasm, Asthma
Diagnosis of Exercise-induced Bronchospasm (EIB) and Asthma in National Collegiate Athletic Association (NCAA) Division I Athletes
We hypothesize that exercise-induced bronchospasm (EIB) at the NCAA Division I collegiate level is over diagnosed, while poorly controlled asthma resulting in exercise-related symptoms in this same population may be under…
- Trial name
- NCT00752167
- Where
- United States
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- University of Arizona
Tachycardia, Hypertension
To Observe Haemodynamic Parameters Including, Heart Rate, Blood Pressure, Respiratory Rate , and Oxygen Saturation, With or Without Giving Reversal Agent on Extubation, in Patients Receiving Single Shot of Atracurium , and to Observe Post Operative Residual Paralysis and Airway Reflexes in PACU.
The goal of this clinical trial is to to observe the haemodynamic parameters including Heart Rate Blood pressure Respiratory rate and Oxygen Saturation with or without giving reversal agent on extubation in patients receiving…
- Conditions
- Tachycardia, Hypertension, Hypoxia, Hyperventilation
- Trial name
- NCT07097441
- Testing
- neostigmine (reversal agent)
- Where
- Pakistan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Ziauddin University
Acute Mountain Sickness
Voluntary Isocapnic Hyperpnea in Hypoxia to Mitigate Acute Mountain Sickness
This study investigates the effects of a brief Voluntary Isocapnic Hyperpnoea (VIH) on Acute Mountain Sickness (AMS) symptoms, SpO₂, blood pressure, and blood gas homeostasis in normobaric hypoxia, to evaluate whether such…
- Trial name
- NCT07126834
- Testing
- VIH
- Where
- Poland
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Institute of Sport - National Research Institute, Poland
Asthma, Cough
Sensory-Mechanical Responses to Eucapneic Voluntary Hyperventilation and Mannitol
The objectives of this study are to determine the sensory-mechanical responses to Eucapneic Voluntary Hyperventilation (EVH) and Mannitol in individuals with cough variant asthma (CVA) and methacholine-induced cough with normal…
- Conditions
- Asthma, Cough, Cough Variant Asthma
- Trial name
- NCT03105843
- Testing
- Methacholine (MCh) Challenge Testing, Eucapneic Voluntary Hyperventilation (EVH), Mannitol Inhalation Kit
- Where
- Canada
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Dr. Diane Lougheed
Exercise Induced Bronchospasm
Hyperventilation Versus Exercise Testing Sensitivity in Exercise Induced Asthma
The diagnosis of exercise-induced bronchospasm (EIB) is difficult. The metacholine challenge test is not enough specific for the diagnosis of EIB.
- Trial name
- HYVES (NCT03063424)
- Testing
- Eucapnic voluntary hyperventilation, Exercise challenge on a cycle ergometer
- Where
- Canada
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Université de Sherbrooke
Panic Disorder
Breathing Regulation Training for Individuals With Panic Disorder
This study will compare two different breathing regulation techniques to determine which is more effective in reducing the rate of panic attacks in people with panic disorder.
- Trial name
- NCT00183521
- Testing
- Raise-CO2 breathing regulation training, Lower-CO2 breathing regulation training, Control
- Where
- United States
- Volunteers
- 136 people, healthy volunteers welcome
- Sponsor
- Stanford University
MRI, MRI Image Enhancement
Optimizing Liver MRI Using Breath-Holding With and Without Oxygen
The goal of this interventional study (clinical trial) is to learn if different breath-holding techniques, with and without extra oxygen, can improve the quality of abdominal Magnetic Resonance Imaging (MRI) images in healthy…
- Trial name
- NCT07135401
- Testing
- Breath-hold conditions
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Life Experiences, Respiratory Function
Validation of Study in Respiratory Physiology and it Interactions
The aim of the study was to validate tools of physiological signal processing and interpretation on healthy human volunteers in order to improve the understanding in respiratory physiology and its interactions with heart…
- Conditions
- Life Experiences, Respiratory Function, Cardiac Function
- Trial name
- ValApPhI (NCT01881945)
- Testing
- Non-invasive physiological signal recording on healthy volunteer
- Where
- France
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University Hospital, Grenoble
Asthma (Diagnosis)
The Effect of a Cold Air Eucapnic Hyperventilation Test on Lower Respiratory Airways in Healthy Volunteers and Patients With Asthma
In this study, we want to evaluate the feasibility and safety of a CAEH test in healthy volunteers and patients with asthma. We want to develop a CAEH test to differentiate patients with different types of asthma and…
- Trial name
- CLARINET (NCT07220928)
- Testing
- Cold air challenge
- Where
- Belgium
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- KU Leuven
Fibromyalgia, Respiratory Alkalosis and Metabolic Acidosis
Evaluation of Respiratory Function in Fibromyalgia
This study will evaluate respiratory function in people with fibromyalgia and whether or not breathing patterns in this patient group can be explained by stress, emotional or biomechanical variables.
- Conditions
- Fibromyalgia, Respiratory Alkalosis and Metabolic Acidosis, Chronic Hyperventilation
- Trial name
- NCT04098731
- Where
- Sweden
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Uppsala University
Hypoventilation, Hyperventilation
Investigating the Effect of Yoga-based Breathing Styles on the Human Brain, With a Focus on Memory
The goal of this clinical trial is to learn if yoga-based breathing styles could improve memory performance in adult persons without relevant prior experience in yoga, meditation or similar disciplines and without existing health…
- Trial name
- NCT05846425
- Testing
- Nose-breathing training, Mouth-breathing training
- Where
- Germany
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Universität des Saarlandes
Altitude Sickness
Controlled Hyperventilation as Prophylaxis for Acute Mountain Sickness
This study evaluates the safety and efficacy of the voluntary ventilatory response as prophylaxis for acute mountain sickness, measured by the Lake Louise Self-Report Score, comparing to a group using acetazolamide.
- Trial name
- NCT02972411
- Testing
- Voluntary ventilatory response, Acetazolamide
- Where
- Chile
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Hospital del Trabajador de Santiago
Breast Cancer
Hyperventilation and Oxygenation to Prolong Breath Hold in Breast Cancer Irradiation Treatment
With the HOBBIT trial, the investigators want to develop a technology that allows volunteers to hold their breath for a long time.
- Trial name
- HOBBIT (NCT04091542)
- Testing
- Optiflow/Ventilator
- Where
- Belgium
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University Hospital, Ghent
Postural Orthostatic Tachycardia Syndrome, Hypocapnia
Chemoreflex and Baroreflex Alterations Causing Postural Tachycardia Syndrome With Orthostatic Hyperpnea and Hypocapnia
Postural tachycardia syndrome (POTS) is the most common chronic cause of postural lightheadedness, and upright confusion afflicting many Americans, mostly young women.
- Conditions
- Postural Orthostatic Tachycardia Syndrome, Hypocapnia, Hyperventilation
- Trial name
- NCT05923840
- Testing
- Chemoreflex Testing, Baroreflex testing, Orthostatic stress testing
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- New York Medical College
Coronary Artery Disease
Impact of Breathing Maneuvers on the Oxygenation Supply of the Heart Assessed With MRI in Patients With Coronary Artery Disease
Patients with an impaired blood supply of the heart routinely receive oxygen in order to improve or preserve the oxygen supply of the heart muscle in acute cardiac care.
- Trial name
- CADOS-CMR (NCT02233634)
- Testing
- Oxygen, Hyperventilation Breath-hold (HVBH), HVBH with Oxygen
- Where
- Switzerland
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Acid-Base Imbalance, Respiratory Acidosis
Non Carbonic Buffer Power of Critical Ill Patients With Sepsis
Alterations of acid-base equilibrium are very common in critically ill patients and understanding their pathophysiology can be important to improve clinical treatment.
- Conditions
- Acid-Base Imbalance, Respiratory Acidosis, Respiratory Alkalosis
- Trial name
- NCT03503214
- Testing
- In vitro determination of non-carbonic buffer power, Classic description of acid-base status
- Where
- Italy
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico
Exercise-Induced Bronchospasm
Effects of Montelukast on Occult Exercise-Induced Bronchospasm in Athletes
The purpose of this study is to determine if treatment of exercise-induced Bronchospasm with montelukast will help college athletes train more effectively and thus become more competitive in a non ergogenic manner.
- Trial name
- NCT00375232
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Indiana University
Respiration Disorder, Hyperventilation Syndrome
Dysfunctional Breathing: Characterisation and Assessment
Dysfunctional breathing (DB) is a respiratory condition characterised by an abnormal breathing pattern, among other complaints, that can occur either in the absence of other pathophysiology (primary DB), e.g.
- Conditions
- Respiration Disorder, Hyperventilation Syndrome, Breathlessness, Breath Shortness
- Trial name
- NCT03043469
- Testing
- Short-form survey instrument, Demographic data, Hospital Anxiety and Depression Scale
- Where
- United Kingdom
- Volunteers
- 141 people, healthy volunteers welcome
- Sponsor
- Brunel University
Hyperventilation, Larynx
Vocal Cord Responses During Hyperventilation in Normal Individuals and in Mild and Severe Asthmatics.
The Investigators aim to: 1. Study the effect of hyperventilation on the development of paradoxical vocal cord movement (PVCM) in healthy individuals and in patients with mild and severe asthma, 2.
- Conditions
- Hyperventilation, Larynx, Asthma
- Trial name
- NCT05565430
- Testing
- Acute Hyperventilation, Chronic hyperventilation, Effects of anticholinergic medication
- Where
- Australia
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Monash Medical Centre
Autoimmune Diseases
Increasing Plasma Adrenaline Levels Through Breathing Techniques - an Explorative Study
Inflammatory cytokines play a pivotal role in rheumatoid arthritis (RA) and innovative non-pharmacological therapies aimed at limiting cytokine production are highly warranted.
- Trial name
- INADRI (NCT02417155)
- Testing
- Hyper/hypoventilation, Strength ventilation
- Where
- Netherlands
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Radboud University Medical Center