Effects of external loads on postural sway during quiet stance in adults aged 20–80 years

Matt Hill; Michael Duncan; Sam Oxford; Anthony Kay; Mike Price

doi:10.1016/j.apergo.2017.08.007

Effects of external loads on postural sway during quiet stance in adults aged 20–80 years

Matt Hill, Michael Duncan, Sam Oxford, Anthony Kay, Mike Price

University of Northampton

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16 Citations (Scopus)

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Abstract

The purpose of this study was to investigate the effects of holding external loads on postural sway during upright stance across age decades. Sixty-five healthy adults (females, n = 35), aged 18–80 years were assessed in four conditions; (1) standing without holding a load, holding a load corresponding to 5% body mass in the (2) left hand, (3) right hand and (4) both hands. The centre of pressure (COP) path length and anteroposterior and mediolateral COP displacement were used to indirectly assess postural sway. External loading elicited reductions in COP measures of postural sway in older age groups only (P < 0.05). No changes were observed in younger or intermediate aged adults (P > 0.05). Holding external loads during standing is relevant to many activities of daily living (i.e. holding groceries). The reduction in postural sway may suggest this type of loading has a stabilising effect during quiet standing among older adults.
Publisher Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Applied Ergonomics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Ergonomics, [66, (2017)] DOI: 10.1016/j.apergo.2017.08.007

Original language	English
Pages (from-to)	64-69
Number of pages	6
Journal	Applied Ergonomics
Volume	66
Early online date	21 Aug 2017
DOIs	https://doi.org/10.1016/j.apergo.2017.08.007
Publication status	Published - Jan 2018

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Applied Ergonomics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Ergonomics, [66, (2017)] DOI: 10.1016/j.apergo.2017.08.007

© 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

Functional balance
Age-related changes
Postural stability
Grocery bags
External loads

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10.1016/j.apergo.2017.08.007

Post-PrintAccepted author manuscript, 625 KBLicence: CC BY-NC-ND

Mathew Hill
- Centre for Physical Activity, Sport and Exercise Sciences - Assistant Professor Research
Person: Teaching and Research

Cite this

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title = "Effects of external loads on postural sway during quiet stance in adults aged 20–80 years",

abstract = "The purpose of this study was to investigate the effects of holding external loads on postural sway during upright stance across age decades. Sixty-five healthy adults (females, n = 35), aged 18–80 years were assessed in four conditions; (1) standing without holding a load, holding a load corresponding to 5% body mass in the (2) left hand, (3) right hand and (4) both hands. The centre of pressure (COP) path length and anteroposterior and mediolateral COP displacement were used to indirectly assess postural sway. External loading elicited reductions in COP measures of postural sway in older age groups only (P < 0.05). No changes were observed in younger or intermediate aged adults (P > 0.05). Holding external loads during standing is relevant to many activities of daily living (i.e. holding groceries). The reduction in postural sway may suggest this type of loading has a stabilising effect during quiet standing among older adults.Publisher Statement: NOTICE: this is the author{\textquoteright}s version of a work that was accepted for publication in Applied Ergonomics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Ergonomics, [66, (2017)] DOI: 10.1016/j.apergo.2017.08.007 {\textcopyright} 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0",

keywords = "Functional balance, Age-related changes, Postural stability , Grocery bags , External loads ",

author = "Matt Hill and Michael Duncan and Sam Oxford and Anthony Kay and Mike Price",

note = "NOTICE: this is the author{\textquoteright}s version of a work that was accepted for publication in Applied Ergonomics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Ergonomics, [66, (2017)] DOI: 10.1016/j.apergo.2017.08.007 {\textcopyright} 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/",

year = "2018",

month = jan,

doi = "10.1016/j.apergo.2017.08.007",

language = "English",

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pages = "64--69",

journal = "Applied Ergonomics",

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T1 - Effects of external loads on postural sway during quiet stance in adults aged 20–80 years

AU - Hill, Matt

AU - Duncan, Michael

AU - Oxford, Sam

AU - Kay, Anthony

AU - Price, Mike

N1 - NOTICE: this is the author’s version of a work that was accepted for publication in Applied Ergonomics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Ergonomics, [66, (2017)] DOI: 10.1016/j.apergo.2017.08.007 © 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

PY - 2018/1

Y1 - 2018/1

N2 - The purpose of this study was to investigate the effects of holding external loads on postural sway during upright stance across age decades. Sixty-five healthy adults (females, n = 35), aged 18–80 years were assessed in four conditions; (1) standing without holding a load, holding a load corresponding to 5% body mass in the (2) left hand, (3) right hand and (4) both hands. The centre of pressure (COP) path length and anteroposterior and mediolateral COP displacement were used to indirectly assess postural sway. External loading elicited reductions in COP measures of postural sway in older age groups only (P < 0.05). No changes were observed in younger or intermediate aged adults (P > 0.05). Holding external loads during standing is relevant to many activities of daily living (i.e. holding groceries). The reduction in postural sway may suggest this type of loading has a stabilising effect during quiet standing among older adults.Publisher Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Applied Ergonomics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Ergonomics, [66, (2017)] DOI: 10.1016/j.apergo.2017.08.007 © 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0

AB - The purpose of this study was to investigate the effects of holding external loads on postural sway during upright stance across age decades. Sixty-five healthy adults (females, n = 35), aged 18–80 years were assessed in four conditions; (1) standing without holding a load, holding a load corresponding to 5% body mass in the (2) left hand, (3) right hand and (4) both hands. The centre of pressure (COP) path length and anteroposterior and mediolateral COP displacement were used to indirectly assess postural sway. External loading elicited reductions in COP measures of postural sway in older age groups only (P < 0.05). No changes were observed in younger or intermediate aged adults (P > 0.05). Holding external loads during standing is relevant to many activities of daily living (i.e. holding groceries). The reduction in postural sway may suggest this type of loading has a stabilising effect during quiet standing among older adults.Publisher Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Applied Ergonomics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Ergonomics, [66, (2017)] DOI: 10.1016/j.apergo.2017.08.007 © 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0

KW - Functional balance

KW - Age-related changes

KW - Postural stability

KW - Grocery bags

KW - External loads

U2 - 10.1016/j.apergo.2017.08.007

DO - 10.1016/j.apergo.2017.08.007

M3 - Article

SN - 1872-9126

VL - 66

SP - 64

EP - 69

JO - Applied Ergonomics

JF - Applied Ergonomics

ER -

Effects of external loads on postural sway during quiet stance in adults aged 20–80 years

Abstract

Bibliographical note

Keywords

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Mathew Hill

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