Clinical trials: High Altitude Effects
Hypoxia, Altitude, Blood Flow Restriction
Effects of Low-Intensity Blood Flow Restriction Training in Normoxia and Hypoxia Conditions
One approach to significantly reducing resistance training intensity while maintaining effectiveness in muscle mass and strength development involves conducting training sessions under hypoxic conditions.
- Conditions
- Hypoxia, Altitude, Blood Flow Restriction, Resistance Training
- Trial name
- NCT06171841
- Testing
- low-intensity resistance training, high-intensity resistance training, low-intensity resistance training combined with blood flow restriction
- Where
- Poland
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- The Jerzy Kukuczka Academy of Physical Education in Katowice
Probiotics
The Effect of a Multi-strain Probiotic on Acclimatization to High Altitude
The goal of this study is to learn if the probiotic SLAB51 (Sivomixx800®) works to enhance acclimatization to high altitude in humans.
- Trial name
- NCT06552806
- Testing
- SLAB51
- Where
- 2 sites in United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- University of California, San Diego
Altitude Hypoxia
Effect of Acetazolamide on Right Heart Function During Exercise in Lowlanders Older Than 40 Years at Altitude
Randomized, placebo controlled trial evaluating efficacy of acetazolamide on right heart function during exercise in lowlanders older than 40 years travelling from 760 m to 3'100 m.
- Trial name
- NCT03537924
- Testing
- ACETAZOLAMIDE oral capsule
- Where
- Kyrgyzstan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Hypoxia, High Altitude
SJOV vs. HFNO for Hypoxia During Procedural Sedation at High Altitudes
This study aims to compare the effect of the use of supraglottic jet oxygenation and ventilation (SJOV) with high-flow nasal oxygen therapy (HFNO) on reducing the rate of hypoxia during gastrointestinal endoscopic procedures in…
- Trial name
- NCT05474287
- Testing
- SJOV, HFNO
- Where
- China
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- Peking University People's Hospital
Hypoxia, Altitude, Exercise Tolerance
Direct and Cross Effects of Adaptation to Systemic Hyperthermia: Impact on Quality of Life, Neurohormonal and Psychophysiological Human Status
Life expectancy and quality of human life are important indicator of the sustainable development of the society. At the same time, the physical, functional, emotional and psychological components of the of the quality of life…
- Conditions
- Hypoxia, Altitude, Exercise Tolerance, Metabolic Disturbance, Quality of Life
- Trial name
- NCT04089410
- Testing
- Hyperthermic Fitness Treatment (HFT), Physical Examination, Assessment of Cardiorespiratory Fitness
- Where
- Russia
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- I.M. Sechenov First Moscow State Medical University
Hypoxia, High Altitude
Supraglottic Jet Oxygenation and Ventilation for Gastrointestinal Endoscopy at High-altitude
This study aims to determine whether the use of SOJV could reduce the rate of hypoxia during gastrointestinal endoscopic procedures in deeply sedated patients sedated at high altitude comparing to the supplemental oxygen…
- Trial name
- NCT05304923
- Testing
- Supraglottic jet oxygenation and ventilation, Nasal cannula oxygen supply
- Where
- China
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- Peking University People's Hospital
Acute Mountain Sickness, Environmental Illness
Can Rhodiola Crenulata Intake Improve Oxygen Saturation and Decrease the Incidence of Acute Mountain Sickness
Traditional folk medicine in the Arctic and Himalayan areas used Rhodiola species to enhance physical endurance, prevent aging, resist acute mountain sickness (AMS), and to treat fatigue, depression, anemia, impotence and…
- Trial name
- NCT01536288
- Testing
- Rhodiola crenulata
- Where
- Taiwan
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital
Intermittent Hypoxia
Effects of Melatonin on Sleep, Ventilatory Control and Cognition at Altitude
Low oxygen at altitude causes pauses in breathing during sleep, called central sleep apnea. Central sleep apnea causes repeated awakenings and poor sleep.
- Trial name
- NCT03588676
- Testing
- Melatonin
- Where
- United States
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- Robert L. Owens
Adolescent Swimmers
Effects of Six Weeks of Sub-High-Altitude Training on the Physical Performance and Psychological State of Adolescent Swimmers
To investigate the effects of sub-altitude training on the physical performance and psychological state of adolescent swimmers and to analyze the possible mechanisms underlying these effects
- Trial name
- NCT07786935
- Testing
- sub-altitude training
- Where
- China
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Xiang Gao
Altitude, Pulmonary Hypertension
Effect of Bosentan on Exercise Capacity at High Altitude
This study is to determine whether bosentan will alter exercise capacity after rapid ascent to high altitude. We hypothesize that bosentan administration will improve arterial oxygenation and exercise capacity.
- Trial name
- NCT00432978
- Testing
- Bosentan administration
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- VA Loma Linda Health Care System
Exercise-induced Bronchoconstriction (EIB)
Hypoxic Environment on EIB and Performance in Race Walkers
Title: Diagnosis and Impact of Exercise-Induced Bronchoconstriction (EIB) in Athletes During Altitude Training Study Description: We invite you to participate in a research study examining Exercise-Induced Bronchoconstriction…
- Trial name
- EIB-H (NCT07466849)
- Testing
- High-Altitude Training & Hypoxic Environment Exposure
- Where
- China
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Shanghai University of Sport
Iron-deficiency, Ventricular Function
Iron Status and Cardiopulmonary Physiology
This study involved human volunteers undertaking a high-altitude expedition. It assessed changes in physiological parameters of relevance to high-altitude cardiopulmonary physiology.
- Conditions
- Iron-deficiency, Ventricular Function, Pulmonary Vascular Resistance Abnormality, Altitude Hypoxia
- Trial name
- NCT03707249
- Testing
- Ferric Carboxymaltose Injectable Product, Normal Saline 0.9% Infusion Solution Bag
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Royal Centre for Defence Medicine
Effect of High Altitude
Effect of High Altitude Exposure, Acclimatization and Re-exposure on Right Ventricular Function in Lowlanders
Prospective interventional trial in lowlanders evaluating effect of acute exposure, acclimatization and re-exposure to high altitude
- Trial name
- NCT02730156
- Testing
- Altitude exposure
- Where
- Switzerland
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Acute Mountain Sickness, Healthy
Training in Hypoxia to Prevent Acute Mountain Sickness
Some studies suggest that high-altitude related illnesses - like acute mountain sickness - could be prevented by acclimatisation, reached at low altitude using training in simulated altitude.
- Trial name
- NCT00886912
- Testing
- hypoxia, normoxia
- Where
- Germany
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Heidelberg University
Altitude Sickness
Prevention of Altitude Illness With Non-steroidal Anti-inflammatory Study (PAINS)
This is a research study on Altitude Illness. From the information collected and studied in this project we hope to learn more about Altitude Illness, including factors that may affect and prevent the development and progression…
- Trial name
- NCT01171794
- Testing
- Ibuprofen
- Where
- United States
- Volunteers
- 89 people, healthy volunteers welcome
- Sponsor
- Stanford University
Pulmonary Hypertension, Mountain Sickness
Study of the Effects of Iron Levels on the Lungs at High Altitude
The study hypothesis is that body iron levels are important in determining the increase in lung blood pressure that occurs in response to low oxygen levels.
- Trial name
- NCT00952302
- Testing
- Iron sucrose, Normal saline, Venesection
- Where
- Peru
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- University of Oxford
Acute Mountain Sickness
The Effect of Continuous Positive Pressure Ventilation on Symptoms of Acute Mountain Sickness
Acute Mountain Sickness (AMS) is a common condition affecting individuals traveling to elevations greater than 2500 meters (8200 feet).
- Trial name
- NCT06145113
- Testing
- Continuous positive airway pressure (CPAP), ResMed AirMini
- Where
- Nepal
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Resting Metabolic Rate, Appetite
Effects of Overnight Low Oxygen Exposure on Energy Balance
This research study will evaluate changes in resting metabolic rate, appetite, and heart rate variability following overnight exposure (8 h/night) to normobaric hypoxia (NH) or normobaric normoxic (NN).
- Conditions
- Resting Metabolic Rate, Appetite, Heart Rate Variability
- Trial name
- NCT04151927
- Testing
- Normobaric Hypoxia, Normobaric Normoxia
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Florida State University
Hypoxia, Altitude
Effect of an H1 Receptor Antagonist on Exercise Performance in Hypoxia
This study seeks to determine whether a simple, single intervention of Cetirizine / Zyrtec® use can improve exercise performance of active individuals when acutely exposed to altitude.
- Trial name
- NCT03192488
- Testing
- Cetirizine, Hypoxia
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Indiana University
Acute Mountain Sickness
Altitude Sickness Prevention and Efficacy of Comparative Treatments
This study is designed to be the first to examine the novel drug budesonide for prevention of acute mountain sickness in comparison to acetazolamide and in the context of rapid ascent to high altitude.
- Trial name
- ASPECT (NCT02604173)
- Testing
- Budesonide, Acetazolamide
- Where
- United States
- Volunteers
- 103 people, healthy volunteers welcome
- Sponsor
- Stanford University