Risk of Impaired Control of Spacecraft, Associated Systems and Immediate Vehicle Egress Due to Vestibular/Sensorimotor Alterations Associated with Space Flight: Record 34 (MRL No. 28, Sensori)-BASELINE

摘要

It has been shown that long-duration spaceflight alters vestibular/sensorimotor function which is manifested in some, but not all crewmembers (some have only partial symptoms while other show all) as changes in postural and locomotor control, gaze control, degradation of dynamic visual acuity, and perceptual changes. These changes have not specifically been correlated with real time performance decrements. The possible alterations in sensorimotor performance are of interest for Mars missions, performance onboard the ISS and return to Earth from the ISS, flights to and from the ISS, Lunar Sorties, and Lunar Outpost missions with prolonged exposure to Lunar gravitational fields. This risk must be better documented and vestibular/sensorimotor changes must be better correlated with performance issues. Overall, this risk is supported by three factors: Impaired Manual Control, Space Motion Sickness (SMS), and Gravitational Transition Motion Sickness.