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Postural stability when walking and exposed to lateral oscillatory motion: benefits from hand supports

Postural stability when walking and exposed to lateral oscillatory motion: benefits from hand supports
Postural stability when walking and exposed to lateral oscillatory motion: benefits from hand supports
While walking on a treadmill, 20 subjects experienced lateral oscillations: frequencies from 0.5 to 2Hz and velocities from 0.05 to 0.16ms21 rms. Postural stability was indicated by ratings of ‘discomfort or difficulty in walking’, the movement of the centre of pressure beneath the feet and lateral forces applied to a hand support. Hand support improved postural stability with all frequencies and all velocities of oscillatory motion: the lateral velocity of the centre of pressure reduced by 30–50%
when using support throughout motion, by 20–30% when instructed to use the support only when required and by 15%
during normal walking without oscillation. Improvements in stability, and the forces applied to the hand support, were
independent of support height when used continuously throughout motion. When support was used only when required,
subjects preferred to hold it 118–134 cm above the surface supporting the feet
1366-5847
291-300
Ayik, Hatice Mujde
f80c78f6-8cd4-4c95-b8a0-bad826e20065
Griffin, M.J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Ayik, Hatice Mujde
f80c78f6-8cd4-4c95-b8a0-bad826e20065
Griffin, M.J.
24112494-9774-40cb-91b7-5b4afe3c41b8

Ayik, Hatice Mujde and Griffin, M.J. (2015) Postural stability when walking and exposed to lateral oscillatory motion: benefits from hand supports. Ergonomics, 58 (2), 291-300. (doi:10.1080/00140139.2014.967309). (PMID:25331636)

Record type: Article

Abstract

While walking on a treadmill, 20 subjects experienced lateral oscillations: frequencies from 0.5 to 2Hz and velocities from 0.05 to 0.16ms21 rms. Postural stability was indicated by ratings of ‘discomfort or difficulty in walking’, the movement of the centre of pressure beneath the feet and lateral forces applied to a hand support. Hand support improved postural stability with all frequencies and all velocities of oscillatory motion: the lateral velocity of the centre of pressure reduced by 30–50%
when using support throughout motion, by 20–30% when instructed to use the support only when required and by 15%
during normal walking without oscillation. Improvements in stability, and the forces applied to the hand support, were
independent of support height when used continuously throughout motion. When support was used only when required,
subjects preferred to hold it 118–134 cm above the surface supporting the feet

Text
14788 HMA-MJG 2015 Walking_stability_with_support - Accepted Manuscript
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e-pub ahead of print date: 21 October 2014
Published date: 2015
Organisations: Human Sciences Group

Identifiers

Local EPrints ID: 372108
URI: http://eprints.soton.ac.uk/id/eprint/372108
ISSN: 1366-5847
PURE UUID: f12d9bb2-bce7-4fc4-93dc-247c1841f20f
ORCID for M.J. Griffin: ORCID iD orcid.org/0000-0003-0743-9502

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Date deposited: 28 Nov 2014 11:39
Last modified: 20 Jul 2019 01:27

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