Spaceflight-associated Motion Sickness in Commercial Crew Astronauts

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   Neurovestibular symptoms following space flight

   K. Bacal, R. Billica, S. Bishop · 2003 · Journal of Vestibular Research-Equilibrium & Orientation · Pas encore résumé

   Résumé scientifique

   Neurovestibular symptoms experienced by astronauts in the post-flight period were examined using data from medical debriefs contained in the NASA Longitudinal Study of Astronaut Health database. Ten symptoms were identified (clumsiness, difficulty concentrating, persisting sensation aftereffects, nausea, vomiting, vertigo while walking, vertigo while standing, difficulty walking a straight line, blurred vision, and dry heaves), of which eight were crossed with twelve demographic parameters (mission duration, astronaut gender, age, one-g piloting experience, previous space flight experience, g-suit inflation, g-suit deflation, in-flight space motion sickness, in-flight exercise, post-flight e…

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   Résumé scientifique

   Introduction The increasing use of modern motion-based flight simulators in military and civil aviation, despite their high relevance for training, is accompanied by the occurrence of simulator sickness. While acute symptoms during simulation are well described, the duration of post-exposure complaints and their significance for subsequent real flight capability have not yet been sufficiently investigated. The aim of this exploratory review was to summarise the available studies on the (persistence of) symptoms after flight-related simulator training. Methods A systematic literature search was conducted in PubMed, Web of Science and Scopus in accordance with PRISMA guidelines. From a total o…

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   Space and Entry Motion Sickness

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   Sleep disorders carry the risk to health and safety of cosmonauts during space missions. The review considers the data about incidence, mechanisms and strategies for sleep disorders management based on analysis of the evidence collected in the NASA shuttles and ISS missions. It was shown that up to 94 % crew members experience sleep disorders and use sleeping drugs quite often. Key changes in the sleep structure include shortening of the REM and deep sleep, and total sleep duration. The main contributing factors are microgravity, desynchronization of circadian rhythms, noise, stresses and heavy workload. The present sleep management strategies consist of the work-rest schedule optimization, …

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   Seonghyeon Kim, Jaesik Yang, S. Hong et al. · 2026 · Scientific Reports · Pas encore résumé

   Résumé scientifique

   Motion sickness is an important challenge for the acceptance of autonomous vehicles. Although the Motion Sickness Susceptibility Questionnaire (MSSQ) is widely used, it relies on retrospective self-report and does not directly capture vestibular characteristics. This study examined the association between the vestibular time constant (VTC), which reflects the velocity storage mechanism, and motion sickness severity during on-road driving. VTC was measured in 24 female adults; 21 completed four 30-min acceleration sessions, and all 24 completed nine 30-min deceleration sessions involving regenerative braking. Motion sickness severity was repeatedly assessed using the Misery Scale (MISC). MSSQ…

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   Résumé scientifique

   BACKGROUND Gravitational gradients, ranging from the surface of the Earth (1 G) to the microgravity of spaceflight (0 G), including intermediate gravitational fields such as those on Mars (⅜ G), directly affect cardiovascular hemodynamics. We sought to track changes in cardiac structure and function over the course of long-duration spaceflight and compare them with responses to specific gravitational loads measured preflight and postflight in a uniquely simulated Martian gravitational load. METHODS We performed a prospective, within-subject, repeated-measures observational study of astronauts during flights to the International Space Station, with acquisition of echocardiographic variables d…

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   Résumé scientifique

   Long-duration missions beyond low Earth orbit will expose crews to prolonged microgravity during transit and partial gravity on the Moon or Mars. Existing exercise, nutritional, pharmacological, and sensorimotor countermeasures mitigate selected aspects of deconditioning but do not reproduce gravity’s continuous multisystem stimulus. Artificial gravity (AG), generated by rotation, is therefore a promising integrative countermeasure. This structured narrative review evaluates the physiological rationale for AG, evidence from human centrifugation and ground-based analog studies, human-factors and engineering constraints, and priorities for exploration missions. Evidence is strongest for the ac…

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   Neurovestibular adaptation to spaceflight: Research progress

   C. Oman · 2003 · Journal of Vestibular Research-Equilibrium & Orientation · Pas encore résumé

   Résumé scientifique

   This double issue of the Journal of Vestibular Research contains eight vestibular research papers from the National Space Biomedical Research Institute (NSBRI). NASA established the NSBRI in 1997 through a nationwide competition. Research teams of scientists were formed in several disciplines of physiology related to long duration spaceflight, including the neurovestibular function. During the first five years of NSBRI research, each team’s goal has been to define the biomedical problems associated with long duration spaceflight, to understand the basic mechanisms, and publish findings in peer-reviewed journals. The teams also have the important additional goal of defining, developing, and v…

Les travaux antérieurs sur lesquels il s’appuie

1. Apparenté Pas pertinent

   Simulation of space adaptation syndrome on earth

   W. Ockels, R. Furrer, E. Messerschmid · 2004 · Experimental Brain Research · Pas encore résumé
2. Apparenté Pas pertinent

   Motion sickness: a synthesis and evaluation of the sensory conflict theory.

   C. Oman · 1990 · Canadian Journal of Physiology and Pharmacology · Pas encore résumé