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  • Title: Simulator sickness in an army simulator.
    Author: Braithwaite MG, Braithwaite BD.
    Journal: J Soc Occup Med; 1990; 40(3):105-10. PubMed ID: 2214692.
    Abstract:
    Simulator sickness describes a symptom reported by aircrew during or after flight simulator training. Some features are common to motion sickness but others, which are unusual during real flight, are believed to result specifically from the simulator environment. This paper describes the results of a questionnaire study examining the incidence and factors influencing simulator sickness in any army training system. Case histories are described and conclusions drawn with respect to health and safety, training and the effect on flight operations. One hundred and fifteen aircrew were registered in the questionnaire study. Data were collected from a history questionnaire, a post-sortie report and a delayed report form. Sixty-nine per cent of aircrew gave a history of symptoms in the simulator and 59.9 per cent experienced at least one symptom during the study period although few symptoms were rated as being other than slight. Only 3.6 per cent of subjects reported symptoms of disequilibrium. Comparative analysis of the results was performed after scoring symptoms to produce a sickness rating. This showed: association between simulator-induced sickness and greater flying experience; adaptation to the simulator environment; a history of sea sickness may predict susceptibility to simulator sickness; and no association of crew role and simulator sickness. Although some authorities believe simulator sickness to be a potential flight safety hazard there was little evidence from this study. Guidelines for the prevention of the problem are presented now that many factors have been identified. A general policy to 'ground' aircrew for a period following simulator training is not necessary, but severe cases should be assessed individually.
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