| Motion sickness with fully roll-compensated lateral oscillation: effect of oscillation frequency. | |
| | |
MedLine Citation:
|
PMID: 19198194 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
BACKGROUND: During lateral acceleration, the addition of an appropriate roll motion can improve comfort, but some combinations of lateral and roll motion increase motion sickness. OBJECTIVES: To determine how motion sickness caused by lateral oscillation fully compensated by roll oscillation (so subjects feel no lateral acceleration) depends on the frequency of oscillation and compare sickness with that caused by uncompensated lateral oscillation. METHOD: A total of 160 subjects (8 groups of 20) were exposed for 30 min to fully roll-compensated sinusoidal lateral oscillation at one of 8 frequencies (0.05, 0.08, 0.125, 0.16, 0.20, 0.315, 0.5, 0.8 Hz). A further 60 subjects (3 groups of 20) were exposed to lateral oscillation (at 0.315, 0.5, or 0.8 Hz) to allow comparison of sickness with that caused by uncompensated lateral oscillation at frequencies not previously studied. Subjects rated symptoms at 1-min intervals. RESULTS: With fully roll-compensated lateral oscillation, illness ratings tended to increase with increasing frequency of oscillation from 0.05 to 0.2 Hz (with peak lateral velocity, +/- 1.0 m x s(-1)) and tended to decrease from 0.315 to 0.8 Hz (with peak lateral jerk, +/- 1.96 m x s(-3)). Roll compensation significantly reduced the duration before subjects developed nausea. CONCLUSIONS: Motion sickness is increased by roll oscillation used to compensate fully for low-frequency lateral oscillation. In general, when roll oscillation is combined with low-frequency lateral oscillation, motion sickness cannot be predicted from either the roll oscillation or the lateral oscillation alone. The dependence of motion sickness on the frequency of oscillation is broadly similar for pure lateral oscillation and 100% roll-compensated lateral oscillation. |
| | |
Authors:
|
Barnaby E Donohew; Michael J Griffin |
Related Documents
:
|
16564424 - Effect of sporting activity practice on susceptibility to motion sickness. 12056424 - Significance of vestibular organs in problems of weightlessness. 16875244 - The violin bridge as filter. 15460624 - Visual field effects on motion sickness in cars. 18570014 - Vibrotactile thresholds at the fingertip, volar forearm, large toe, and heel. 11033164 - Nomographic correspondence between specialist cell responses, electroantennograms and t... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Aviation, space, and environmental medicine Volume: 80 ISSN: 0095-6562 ISO Abbreviation: Aviat Space Environ Med Publication Date: 2009 Feb |
Date Detail:
|
Created Date: 2009-02-09 Completed Date: 2009-03-12 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7501714 Medline TA: Aviat Space Environ Med Country: United States |
Other Details:
|
Languages: eng Pagination: 94-101 Citation Subset: IM; S |
Affiliation:
|
Human Factors Research Unit, Institute of Sound and Vibration Research, University of Southampton, Southampton SO17 1BJ, England. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Acceleration Adolescent Adult Disease Susceptibility Humans Male Motion* Motion Sickness / physiopathology* Rotation Statistics, Nonparametric Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Whole-body vibration effects on bone before and after hind-limb unloading in rats.
Next Document: Resting and exercise response to altitude in patients with chronic obstructive pulmonary disease.