Risk Risk of Altered Sensorimotor/Vestibular Function Impacting Critical Mission Tasks
Short Title: Sensorimotor Last Published:  07/29/22 01:33:17 PM (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 Type and
OperationsLong-Term Health
LxCRisk Disposition *LxCRisk Disposition *
Low Earth OrbitShort
(<30 days)
1x2Accepted1x2Requires Characterization
(30 days-1 year)
1x2Accepted2x2Requires Characterization
Lunar OrbitalShort
(<30 days)
1x2Accepted with Monitoring1x2Requires Characterization
(30 days-1 year)
1x2Accepted with Monitoring2x2Requires Characterization
Lunar Orbital
+ Surface
(<30 days)
3x5Requires Mitigation/Standard Refinement1x2Requires Characterization
(30 days-1 year)
3x5Requires Mitigation/Standard Refinement2x2Requires Characterization
(<1 year)
1x2Accepted with Monitoring1x2Requires Characterization
Mars Planetary
(730-1224 days)
4x2Requires Mitigation/Standard Refinement2x2Requires Characterization
Note: LxC is the likelihood and consequence rating. The information above was last approved by the Human System Risk Board in 12/2020.
Risk Statement
Given that altered gravity leads to changes in sensorimotor/vestibular function that manifest in motion sickness, spatial disorientation, decrements in postural control and locomotion, and manual and fine motor control deficits, there is a possibility that crew will experience performance decrements in manual/vehicle control, extravehicular activities, and egress during and following these transitions.
Gaps (9)