Responsible Center: NSBRI
Grant Monitor:
Center Contact:
Unique ID: 7964
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Solicitation / Funding Source: 2009 Crew Health NNJ09ZSA002N
Grant/Contract No.: NCC 9-58-CA02202
Project Type: GROUND
Flight Program:
TechPort: No |
No. of Post Docs: 1
No. of PhD Candidates: 0
No. of Master's Candidates: 0
No. of Bachelor's Candidates: 0
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No. of PhD Degrees: 0
No. of Master's Degrees: 0
No. of Bachelor's Degrees: 0
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Human Research Program Elements: |
(1) HHC:Human Health Countermeasures
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Human Research Program Risks: |
(1) Cardiovascular:Risk of Cardiovascular Adaptations Contributing to Adverse Mission Performance and Health Outcomes
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Human Research Program Gaps: |
(1) CV-101:Determine whether long-duration weightlessness induces cardiovascular structural and functional changes and/or oxidative stress & damage (OSaD)/inflammation, that can contribute to development of disease.
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Flight Assignment/Project Notes: |
NOTE: End date changed to 9/30/2011 (from 4/30/2014) as project was descoped, per NSBRI (Ed., 10/11/2011) |
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Task Description: |
Appropriate temperature regulation is critical for the safety of astronauts performing physically demanding work, particularly that which occurs during extravehicular activities. Work performance is also greatly reduced if impaired temperature regulation results in large elevations in internal temperatures. Using ground-based models of space flight, the prevailing data suggest that temperature control is impaired while astronauts are in space. However, it remains unknown whether these models accurately reflect physiological responses of space flight. Within this context, the proposed study will investigate two key questions: 1) Does space flight impair temperature regulation while astronauts are in a zero gravity environment; and 2) Does prolonged space flight impair temperature regulation during extravehicular activities that may occur in a partial gravity environment of a lunar (1/6 the Earth's gravity) or Mars (3/8 the Earth's gravity) mission? The first objective will be accomplished by evaluating temperature regulatory responses in astronauts during steady-state exercise prior to space flight, on a monthly basis while on the International Space Station, and upon return to Earth. The second objective will evaluate the effects of prolonged space flight on temperature regulatory responses during exercise that simulates an extravehicular activity in a Mars or lunar gravitational environment. For both objectives, the astronauts' temperature regulatory capacity will be evaluated by measuring internal temperature, skin blood flow, and sweat rate responses during the prescribed exercise conditions. The provided information will be extremely valuable to NASA as it will lead to improved safety and perhaps physical work capacity of the astronauts during the indicated exposures.
Key Findings: Project defunded prior to onset of data collection. |
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Research Impact/Earth Benefits: |
Project deselected prior to onset of data collection. |