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Utility of a low-cost wireless force platform as a potential clinical test of balance recovery after neuraxial anaesthesia

N. Tweed, S. Williams, D. Williams, J. Dingley, John Dingley

International Journal of Obstetric Anesthesia, Volume: 23, Issue: 3, Pages: 227 - 232

Swansea University Author: John Dingley

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DOI (Published version): 10.1016/j.ijoa.2014.02.001

Abstract

INTRODUCTION:Recovery of balance after neuraxial anaesthesia can remain delayed after simple clinical tests have demonstrated motor recovery. Dynamic posturography tracks the small movements or sway of a person standing as still as possible on a force platform and has been investigated as an objecti...

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Published in: International Journal of Obstetric Anesthesia
ISSN: 0959289X
Published: 2014
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URI: https://cronfa.swan.ac.uk/Record/cronfa27458
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first_indexed 2016-04-27T01:14:56Z
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spelling 2018-06-29T19:48:13.7450797 v2 27458 2016-04-26 Utility of a low-cost wireless force platform as a potential clinical test of balance recovery after neuraxial anaesthesia 1283ffdd09b091ec57ec3e235a48cfcc John Dingley John Dingley true false 2016-04-26 PMSC INTRODUCTION:Recovery of balance after neuraxial anaesthesia can remain delayed after simple clinical tests have demonstrated motor recovery. Dynamic posturography tracks the small movements or sway of a person standing as still as possible on a force platform and has been investigated as an objective measure of the ability to walk following anaesthesia. These are expensive laboratory devices, limiting their clinical utility. One measured variable is path length, the cumulative distance travelled in the horizontal plane by the centre of pressure of a person standing on the platform over 1min. Path length might potentially be measured using the Nintendo® Wii-Fit Balance Board™.METHODS:The feasibility of intercepting raw wireless data from a Wii-Fit Balance Board™ using custom software to calculate path length was explored. Subsequently, path lengths were measured using both this and a laboratory platform simultaneously. In a random order 20 volunteers (a) stood for 1min, feet together, eyes open (conventional baseline test); and (b) stood for 1min, feet together, eyes closed (simulating residual anaesthesia with increased sway). For each device, the ratio b:a was calculated as an index of performance reduction when eyes were closed.RESULTS:Path lengths ranged from 58.5 to 243cm, mean bias 9cm (Wii-Fit&#60;laboratory platform) and 95% confidence limits of 2.5-15.4cm. Ratios ranged from 1.09 to 2.68, mean bias -0.04 (Wii-Fit&#62;laboratory platform) and 95% confidence limits of 0.04 to -0.13.CONCLUSIONS:The path lengths were in close agreement and the Wii-Fit Balance Board™ may be worthy of further investigation as a tool to objectively assess readiness to ambulate following neuraxial anaesthesia. Journal Article International Journal of Obstetric Anesthesia 23 3 227 232 0959289X Anaesthesia; Neuraxial; Path length; Posturography; Wii-Fit Balance Board™ 31 12 2014 2014-12-31 10.1016/j.ijoa.2014.02.001 COLLEGE NANME Medicine COLLEGE CODE PMSC Swansea University 2018-06-29T19:48:13.7450797 2016-04-26T22:33:23.8209239 Faculty of Medicine, Health and Life Sciences Swansea University Medical School - Medicine N. Tweed 1 S. Williams 2 D. Williams 3 J. Dingley 4 John Dingley 5
title Utility of a low-cost wireless force platform as a potential clinical test of balance recovery after neuraxial anaesthesia
spellingShingle Utility of a low-cost wireless force platform as a potential clinical test of balance recovery after neuraxial anaesthesia
John Dingley
title_short Utility of a low-cost wireless force platform as a potential clinical test of balance recovery after neuraxial anaesthesia
title_full Utility of a low-cost wireless force platform as a potential clinical test of balance recovery after neuraxial anaesthesia
title_fullStr Utility of a low-cost wireless force platform as a potential clinical test of balance recovery after neuraxial anaesthesia
title_full_unstemmed Utility of a low-cost wireless force platform as a potential clinical test of balance recovery after neuraxial anaesthesia
title_sort Utility of a low-cost wireless force platform as a potential clinical test of balance recovery after neuraxial anaesthesia
author_id_str_mv 1283ffdd09b091ec57ec3e235a48cfcc
author_id_fullname_str_mv 1283ffdd09b091ec57ec3e235a48cfcc_***_John Dingley
author John Dingley
author2 N. Tweed
S. Williams
D. Williams
J. Dingley
John Dingley
format Journal article
container_title International Journal of Obstetric Anesthesia
container_volume 23
container_issue 3
container_start_page 227
publishDate 2014
institution Swansea University
issn 0959289X
doi_str_mv 10.1016/j.ijoa.2014.02.001
college_str Faculty of Medicine, Health and Life Sciences
hierarchytype
hierarchy_top_id facultyofmedicinehealthandlifesciences
hierarchy_top_title Faculty of Medicine, Health and Life Sciences
hierarchy_parent_id facultyofmedicinehealthandlifesciences
hierarchy_parent_title Faculty of Medicine, Health and Life Sciences
department_str Swansea University Medical School - Medicine{{{_:::_}}}Faculty of Medicine, Health and Life Sciences{{{_:::_}}}Swansea University Medical School - Medicine
document_store_str 0
active_str 0
description INTRODUCTION:Recovery of balance after neuraxial anaesthesia can remain delayed after simple clinical tests have demonstrated motor recovery. Dynamic posturography tracks the small movements or sway of a person standing as still as possible on a force platform and has been investigated as an objective measure of the ability to walk following anaesthesia. These are expensive laboratory devices, limiting their clinical utility. One measured variable is path length, the cumulative distance travelled in the horizontal plane by the centre of pressure of a person standing on the platform over 1min. Path length might potentially be measured using the Nintendo® Wii-Fit Balance Board™.METHODS:The feasibility of intercepting raw wireless data from a Wii-Fit Balance Board™ using custom software to calculate path length was explored. Subsequently, path lengths were measured using both this and a laboratory platform simultaneously. In a random order 20 volunteers (a) stood for 1min, feet together, eyes open (conventional baseline test); and (b) stood for 1min, feet together, eyes closed (simulating residual anaesthesia with increased sway). For each device, the ratio b:a was calculated as an index of performance reduction when eyes were closed.RESULTS:Path lengths ranged from 58.5 to 243cm, mean bias 9cm (Wii-Fit&#60;laboratory platform) and 95% confidence limits of 2.5-15.4cm. Ratios ranged from 1.09 to 2.68, mean bias -0.04 (Wii-Fit&#62;laboratory platform) and 95% confidence limits of 0.04 to -0.13.CONCLUSIONS:The path lengths were in close agreement and the Wii-Fit Balance Board™ may be worthy of further investigation as a tool to objectively assess readiness to ambulate following neuraxial anaesthesia.
published_date 2014-12-31T03:33:17Z
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score 11.012678

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