Risk Risk of Impaired Control of Spacecraft/Associated Systems and Decreased Mobility Due to Vestibular/Sensorimotor Alterations Associated with Spaceflight
Short Title: Sensorimotor Last Published:  11/23/20 11:55:09 AM (Central)
Element: Human Health Countermeasures (HHC)
Evidence:  Report
Risk Master Logic Diagram:  Diagram
Point of Contact:  Scott Wood
HRP Risk Status: Active [current research ongoing]
Risk Ratings and Dispositions per Design Reference Mission (DRM) Category
DRM CategoriesMission
OperationsLong-Term Health
LxCRisk Disposition *LxCRisk Disposition *
Low Earth Orbit6 months3x2Accepted/Standard Refinement3x1Accepted
1 year3x2Accepted/Standard Refinement3x1Accepted
Deep Space Sortie1 month3x2Accepted/Standard Refinement3x1Accepted
Lunar Visit/
1 year3x2Requires Mitigation3x1Accepted
Deep Space
1 year3x2Requires Mitigation3x1Accepted
Planetary3 years3x3Requires Mitigation3x2Requires Mitigation
Note: LxC is the likelihood and consequence rating. The information above was last approved by the Human System Risk Board in 6/2016.
Risk Statement
Given that there is an alteration in vestibular/sensorimotor function during and immediately following gravitational transitions manifested as changes in eye-head-hand control, postural and/or locomotor ability, gaze function, and perception, there is a possibility that crew will experience impaired control of the spacecraft and/or decreased mobility during gravity transitions and following a landing on a planetary surface (Earth or other) after long-duration spaceflight.
Gaps (9)