Twenty-six healthy male subjects were flown in a Lear jet aircraft through rollercoaster and parabolic weightlessness flight. Eye movements, respiration, and blood volume pulse were recorded on magnetic tape. The same subjects underwent a battery of five vestibular tests in the laboratory on the ground. One subject in each flight was flown in an upright position, the other in a 90 deg forward tilted head position. The forward tilted subjects always reported motion sickness earlier and after fewer rollercoaster maneuvers than the upright-sitting subjects. It is concluded that the susceptibility to changes of X-axis acceleration is higher than to changes of Z-axis acceleration. Correlation was found between the ability to estimate the subjective vertical (modified Mueller-Aubert-test), optokinetic nystagmus asymmetries, and susceptibility to rollercoaster flight sickness.


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    Title :

    Physiological response to hyper- and hypogravity during rollercoaster flight


    Contributors:

    Publication date :

    1980-02-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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