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Motion sickness: effect of the frequency of lateral oscillation

Motion sickness: effect of the frequency of lateral oscillation
Motion sickness: effect of the frequency of lateral oscillation
Introduction: low-frequency lateral oscillation is a cause of motion sickness in some forms of transport. However, the relationship between occurrence of sickness and the frequency of lateral oscillation is not known. This paper presents a study of motion sickness with lateral oscillation at frequencies between 0.0315 Hz and 0.20 Hz.

Method: there were 120 subjects, in 6 groups of 20, who were exposed for up to 30 min to sinusoidal lateral oscillation with a peak velocity of 1.0 ms-1 at one of six frequencies (0.0315, 0.05, 0.08, 0.125, 0.16, 0.20 Hz). Subjects provided ratings of their motion sickness symptoms at 1-min intervals.

Results: there was a highly significant effect of the frequency of lateral oscillation on the occurrence of mild nausea.

Discussion: the present results have been combined with those from a previous experiment conducted with higher frequencies of oscillation to produce a frequency weighting for motion sickness caused by lateral oscillation over the range 0.0315 to 0.8 Hz.

Conclusions: mild nausea caused by lateral oscillation may be predicted by an acceleration frequency weighting that is independent of frequency from 0.0315 to 0.25 Hz and reduces at 12 dB per octave (i.e., proportional to displacement) from 0.25 to 0.8 Hz. This weighting differs from the frequency weighting currently used for predicting motion sickness caused by vertical oscillation. The frequency weighting for lateral oscillation may not be applicable in those environments in which there is roll motion during lateral oscillation.
nausea, linear motion, horizontal, translation, rotation
0095-6562
649-656
Donohew, B.E.
4faff148-18a4-4e82-b4c3-484848868f65
Griffin, M.J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Donohew, B.E.
4faff148-18a4-4e82-b4c3-484848868f65
Griffin, M.J.
24112494-9774-40cb-91b7-5b4afe3c41b8

Donohew, B.E. and Griffin, M.J. (2004) Motion sickness: effect of the frequency of lateral oscillation. Aviation, Space and Environmental Medicine, 75 (8), 649-656.

Record type: Article

Abstract

Introduction: low-frequency lateral oscillation is a cause of motion sickness in some forms of transport. However, the relationship between occurrence of sickness and the frequency of lateral oscillation is not known. This paper presents a study of motion sickness with lateral oscillation at frequencies between 0.0315 Hz and 0.20 Hz.

Method: there were 120 subjects, in 6 groups of 20, who were exposed for up to 30 min to sinusoidal lateral oscillation with a peak velocity of 1.0 ms-1 at one of six frequencies (0.0315, 0.05, 0.08, 0.125, 0.16, 0.20 Hz). Subjects provided ratings of their motion sickness symptoms at 1-min intervals.

Results: there was a highly significant effect of the frequency of lateral oscillation on the occurrence of mild nausea.

Discussion: the present results have been combined with those from a previous experiment conducted with higher frequencies of oscillation to produce a frequency weighting for motion sickness caused by lateral oscillation over the range 0.0315 to 0.8 Hz.

Conclusions: mild nausea caused by lateral oscillation may be predicted by an acceleration frequency weighting that is independent of frequency from 0.0315 to 0.25 Hz and reduces at 12 dB per octave (i.e., proportional to displacement) from 0.25 to 0.8 Hz. This weighting differs from the frequency weighting currently used for predicting motion sickness caused by vertical oscillation. The frequency weighting for lateral oscillation may not be applicable in those environments in which there is roll motion during lateral oscillation.

Full text not available from this repository.

More information

Published date: 2004
Keywords: nausea, linear motion, horizontal, translation, rotation
Organisations: Human Sciences Group

Identifiers

Local EPrints ID: 28230
URI: https://eprints.soton.ac.uk/id/eprint/28230
ISSN: 0095-6562
PURE UUID: 02c17596-ed10-4aab-b270-83ae425252fc
ORCID for M.J. Griffin: ORCID iD orcid.org/0000-0003-0743-9502

Catalogue record

Date deposited: 02 May 2006
Last modified: 06 Jun 2018 13:16

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