Clinical trials: Weightlessness
Simulated Microgravity by Head Down Tilt Bedrest, Weightlessness
A 60 Days Head Down Tilt Bedrest With Artificial Gravity and Cycling Exercise on 24 Healthy Male (BRACE)
The objective of this study is to investigate whether a cycling exercise coupled with artificial gravity via a short-arm human centrifuge helps to prevent and / or reduce the deleterious effects induced by 60 days of…
- Trial name
- BRACE (NCT06544213)
- Testing
- Control Group, Countermeasure Supine Bike, Countermeasure AG-Bike
- Where
- France
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Centre National d'Etudes Spatiales
Weightlessness Simulation
A Comparison Study Between 10 Days of Dry Immersion Versus 10 Days of Head-down Bedrest on 20 Healthy Male Volunteers
The space agencies are actively engaged in studying the physiological adaptation to space environment through studies on board the International Space Station (ISS) but also on the ground.
- Trial name
- VIVALDI 3 (NCT06777329)
- Testing
- 10 days of dry immersion, 10 days of Head Down Bed Rest
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Centre National d'Etudes Spatiales
Anemia, Weightlessness
Causes and Mechanisms of Space Hemolysis At High Altitudes
Anemia is a lack of red blood cells (RBCs) in the circulation. Because RBCs carry the oxygen your body needs to function, anemia can affect one's ability to stay awake, alert, and perform physical activities.
- Trial name
- ANEMIA (NCT05496309)
- Where
- Canada
- Volunteers
- 8 people
- Sponsor
- Ottawa Hospital Research Institute
Cartilage Degeneration, Weightlessness
Effects of 60-day-6° Head-down Bed Rest on Cartilage and Function of the Knee Joint
Objective: To investigate the effects of long-term simulated unloading in bed on articular cartilage quality based on functional magnetic resonance imaging (FMRI) and Knee joint function.
- Trial name
- NCT06612372
- Testing
- 60-day-6° head-down bed rest
- Where
- China
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Instructional Virtual Realities, Weightlessness Simulation
VR-MARS Virtual Reality, Medical Assistance and Rescue for Space
VRMARS is a medical simulation study in microgravity. Healthy volunteers (n=18) test in microgravity the functionnality of an augmented reality headset in which a medical assistance is displayed.
- Conditions
- Instructional Virtual Realities, Weightlessness Simulation, Space Simulation, Patient Simulation
- Trial name
- VR-MARS (NCT06144658)
- Testing
- Augmented Reality Headset / Hololens 2 or Varjo XR3
- Where
- France
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Groupe Hospitalier de Bretagne Sud
Weightlessness
A 5-day Dry Immersion Study on 20 Healthy Male Volunteers
Dry immersion (DI) is a ground-based model of prolonged conditions of simulated microgravity. Dry immersion involves immersing the subject in water covered with an elastic waterproof fabric.
- Trial name
- VIVALDI2 (NCT05493176)
- Testing
- Dry immersion
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Centre National d'Etudes Spatiales
Weightlessness, Weightlessness; Adverse Effect
Integrative Study of Physiological Changes Induced by a 5-Day Dry Immersion on 20 Healthy Female Volunteers (DI5-Women)
Dry immersion (DI) is a ground-based model of prolonged conditions of simulated microgravity. Dry immersion involves immersing the subject in water covered with an elastic waterproof fabric.
- Trial name
- VivalDI (NCT05043974)
- Testing
- Dry immersion
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Centre National d'Etudes Spatiales
Weightlessness, Weightlessness; Adverse Effect
A New Nutritional Countermeasure to Prevent the Deconditioning Induced by 60 Days of Antiorthostatic Bed Rest
The objective of this study is to investigate whether the cocktail of natural antioxidants XXS-2A-BR2 comprising vitamin E and coupled with omega-3 helps to prevent and / or reduce the deleterious effects induced by long term…
- Trial name
- LTBRCocktail (NCT03594799)
- Testing
- Bed Rest Control Group, Cocktail intervention
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Centre National d'Etudes Spatiales
Weightlessness, Cerebral Blood Flow
Cerebral Blood Flow Distribution During Parabolic Flight-induced Microgravity
When astronauts return from space flight, they manifest a set of symptoms, the most striking of which is orthostatic intolerance, that is, the inability to stay upright.
- Trial name
- GraCer (NCT03986788)
- Testing
- Weightlessness
- Where
- France
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- University Hospital, Caen
Weightlessness, Weightlessness; Adverse Effect
Thigh Cuffs to Prevent the Deconditioning Induced by 5 Days of Dry Immersion
The objective of the study is to investigate whether thigh cuffs help to prevent and/or reduce the deconditioning induced by 5 days of dry immersion and in particular the fluid shift and its related ophthalmological disorders.
- Trial name
- DI-Cuff (NCT03915457)
- Testing
- Dry immersion Control Group, Thigh cuffs intervention
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Centre National d'Etudes Spatiales
Muscle Atrophy, Weightlessness
The Effects of Whole Body Unloading on Physiological Function
This study is a collaboration between the Centre of Human \& Aerospace Physiological Sciences (CHAPS) and the Sleep and Brain Plasticity Centre (Department of Neuroimaging) at King's College London and the Sleep Disorders Centre…
- Conditions
- Muscle Atrophy, Weightlessness, Sleep Disturbance, Astronaut-Bone Demineralisation Syndrome
- Trial name
- NCT03195348
- Testing
- HBF Bed Rest
- Where
- United Kingdom
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- King's College London
Weightlessness
Space Flight Simulation to Study Effects of Micro-gravity Through Bed Rest
Space flight simulation study to study effects of microgravity through bedrest coupled with flight exercise counter-measures.
- Trial name
- FAP (NCT00891449)
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- National Aeronautics and Space Administration (NASA)
Cardiovascular Abnormalities, Weightlessness
Electroacupuncture is Effective in Cardiac Deconditioning Induced by Head-down Bed Rest
To investigate the changes of cardiovascular function during short-term simulated weightlessness after electroacupuncture (EA) treatment．
- Trial name
- NCT02300207
- Testing
- electronic acupuncture treatment instrument
- Where
- China
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Air Force Military Medical University, China
Simulation of Weightlessness by Anti-Orthostatic Long Term Bed Rest
Toulouse Male Long Term Bed Rest 2001-2002
Microgravity during space flight induces physiological changes that affect astronauts' health and performance. Space flight simulations such as prolonged bed rest can mimic some of these changes and provide study conditions that…
- Trial name
- NCT00311571
- Testing
- Ethidronate, Physical training
- Where
- France
- Volunteers
- 28 people
- Sponsor
- Centre National d'Etudes Spatiales