Planetary Habitat Simulation: Nutrition Studies
NCT02293772 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 14
Last updated 2019-03-15
Summary
A loss of body weight has been documented in lowland-living individuals when exposed to hypoxic environments, such as at high altitude, or under laboratory conditions. A reduction in appetite and energy intake has also been reported during conditions of microgravity, such as during space flight. Fourteen normal or over-weight men, who are otherwise healthy, will undergo 3x 21-day interventions; normobaric normoxic bed rest (NBR; FiO2=21%), normobaric hypoxic ambulatory confinement (HAMB; FiO2=14%; \~4000 m simulated altitude), and normobaric hypoxic bed rest (HBR; FiO2=14%). The effects of hypoxia and bedrest on appetite and its hormonal control will be assessed before and at day 17 of each intervention using a mixed meal tolerance test.
Conditions
Interventions
- OTHER
-
Hypoxic ambulatory
21 days confinement in normobaric hypoxic (FiO2 = 14%) environment
- OTHER
-
Hypoxic Bedrest
21 days supine bedrest in normobaric hypoxic (FiO2 = 14%) environment
- OTHER
-
Normoxic Bedrest
21 days supine bedrest in normobaric normoxic (FiO2 = 21%) environment
Sponsors & Collaborators
-
Jozef Stefan Institute
collaborator OTHER -
KTH Royal Institute of Technology
collaborator OTHER - collaborator OTHER
-
University of Nottingham
lead OTHER
Principal Investigators
-
Igor Mekjavic, PhD · Jozef Stefan Institute
Study Design
- Allocation
- RANDOMIZED
- Purpose
- BASIC_SCIENCE
- Masking
- NONE
- Model
- CROSSOVER
Eligibility
- Min Age
- 25 Years
- Max Age
- 45 Years
- Sex
- MALE
- Healthy Volunteers
- Yes
Timeline & Regulatory
- Start
- 2012-03-31
- Primary Completion
- 2013-11-30
- Completion
- 2014-10-31
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