Dual task performance in older adults: examining visual discrimination whilst treadmill walking at preferred and non-preferred speeds

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Abstract

This study examined visual discrimination performance in a sample of older adults before, during and post treadmill walking at preferred walking speed and preferred walking speed +20%. Nine adults (6 females and 3 males) aged 60–77 years (mean age = 67.1 ± 5.7 years) undertook three trials each lasting 15 min, rest, walking at preferred speed and walking at preferred speed +20%. Pre, during and post each condition, participants undertook measures of visual–cognitive performance. There were no significant main effects or higher order interactions for condition (rest, vs. walking preferred speed, vs. walking preferred speed +20%) or time (pre, during, post) (all P > 0.05). There was a significant condition X time interaction for response time (P = 0.014, partial ɳ2 = 0.352). Post hoc analysis indicated that response times were significantly faster during exercise at preferred speed compared to pre exercise at preferred speed (P = 0.042). Response times were significantly slower during walking at preferred speed +20% compared to pre exercise (P = 0.002) and to post exercise (P = 0.012). Response times were significantly faster during PSW compared to during rest (P = 0.05), during PSW compared to during PSW20 (P = 0.001) and significantly slower during PSW20 compared to during rest (P = 0.001). Post PSW20 response times were significantly slower than post PSW (P = 0.04). These results suggest that visual discrimination performance is facilitated when walking at preferred speeds but walking at 20% faster than preferred speed significantly impedes visual discrimination in older adults.
Original languageEnglish
Pages (from-to)100-103
JournalBehavioural Brain Research
Volume302
DOIs
Publication statusPublished - 1 Apr 2016

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Task Performance and Analysis
Walking
Reaction Time
Walking Speed

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Behavioural Brain Research. 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 Behavioural Brain Research, [302, (2016)]
DOI: 10.1016/j.bbr.2016.01.020

© 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

  • Cognitive performance
  • exercise
  • ageing
  • dual-task processing

Cite this

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title = "Dual task performance in older adults: examining visual discrimination whilst treadmill walking at preferred and non-preferred speeds",
abstract = "This study examined visual discrimination performance in a sample of older adults before, during and post treadmill walking at preferred walking speed and preferred walking speed +20{\%}. Nine adults (6 females and 3 males) aged 60–77 years (mean age = 67.1 ± 5.7 years) undertook three trials each lasting 15 min, rest, walking at preferred speed and walking at preferred speed +20{\%}. Pre, during and post each condition, participants undertook measures of visual–cognitive performance. There were no significant main effects or higher order interactions for condition (rest, vs. walking preferred speed, vs. walking preferred speed +20{\%}) or time (pre, during, post) (all P > 0.05). There was a significant condition X time interaction for response time (P = 0.014, partial ɳ2 = 0.352). Post hoc analysis indicated that response times were significantly faster during exercise at preferred speed compared to pre exercise at preferred speed (P = 0.042). Response times were significantly slower during walking at preferred speed +20{\%} compared to pre exercise (P = 0.002) and to post exercise (P = 0.012). Response times were significantly faster during PSW compared to during rest (P = 0.05), during PSW compared to during PSW20 (P = 0.001) and significantly slower during PSW20 compared to during rest (P = 0.001). Post PSW20 response times were significantly slower than post PSW (P = 0.04). These results suggest that visual discrimination performance is facilitated when walking at preferred speeds but walking at 20{\%} faster than preferred speed significantly impedes visual discrimination in older adults.",
keywords = "Cognitive performance, exercise, ageing, dual-task processing",
author = "M.J. Duncan and M. Smith and N.D. Clarke and E.L.J. Eyre and {Leddington Wright}, S.",
note = "NOTICE: this is the author’s version of a work that was accepted for publication in Behavioural Brain Research. 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 Behavioural Brain Research, [302, (2016)] DOI: 10.1016/j.bbr.2016.01.020 {\circledC} 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/",
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language = "English",
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pages = "100--103",
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TY - JOUR

T1 - Dual task performance in older adults: examining visual discrimination whilst treadmill walking at preferred and non-preferred speeds

AU - Duncan, M.J.

AU - Smith, M.

AU - Clarke, N.D.

AU - Eyre, E.L.J.

AU - Leddington Wright, S.

N1 - NOTICE: this is the author’s version of a work that was accepted for publication in Behavioural Brain Research. 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 Behavioural Brain Research, [302, (2016)] DOI: 10.1016/j.bbr.2016.01.020 © 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

PY - 2016/4/1

Y1 - 2016/4/1

N2 - This study examined visual discrimination performance in a sample of older adults before, during and post treadmill walking at preferred walking speed and preferred walking speed +20%. Nine adults (6 females and 3 males) aged 60–77 years (mean age = 67.1 ± 5.7 years) undertook three trials each lasting 15 min, rest, walking at preferred speed and walking at preferred speed +20%. Pre, during and post each condition, participants undertook measures of visual–cognitive performance. There were no significant main effects or higher order interactions for condition (rest, vs. walking preferred speed, vs. walking preferred speed +20%) or time (pre, during, post) (all P > 0.05). There was a significant condition X time interaction for response time (P = 0.014, partial ɳ2 = 0.352). Post hoc analysis indicated that response times were significantly faster during exercise at preferred speed compared to pre exercise at preferred speed (P = 0.042). Response times were significantly slower during walking at preferred speed +20% compared to pre exercise (P = 0.002) and to post exercise (P = 0.012). Response times were significantly faster during PSW compared to during rest (P = 0.05), during PSW compared to during PSW20 (P = 0.001) and significantly slower during PSW20 compared to during rest (P = 0.001). Post PSW20 response times were significantly slower than post PSW (P = 0.04). These results suggest that visual discrimination performance is facilitated when walking at preferred speeds but walking at 20% faster than preferred speed significantly impedes visual discrimination in older adults.

AB - This study examined visual discrimination performance in a sample of older adults before, during and post treadmill walking at preferred walking speed and preferred walking speed +20%. Nine adults (6 females and 3 males) aged 60–77 years (mean age = 67.1 ± 5.7 years) undertook three trials each lasting 15 min, rest, walking at preferred speed and walking at preferred speed +20%. Pre, during and post each condition, participants undertook measures of visual–cognitive performance. There were no significant main effects or higher order interactions for condition (rest, vs. walking preferred speed, vs. walking preferred speed +20%) or time (pre, during, post) (all P > 0.05). There was a significant condition X time interaction for response time (P = 0.014, partial ɳ2 = 0.352). Post hoc analysis indicated that response times were significantly faster during exercise at preferred speed compared to pre exercise at preferred speed (P = 0.042). Response times were significantly slower during walking at preferred speed +20% compared to pre exercise (P = 0.002) and to post exercise (P = 0.012). Response times were significantly faster during PSW compared to during rest (P = 0.05), during PSW compared to during PSW20 (P = 0.001) and significantly slower during PSW20 compared to during rest (P = 0.001). Post PSW20 response times were significantly slower than post PSW (P = 0.04). These results suggest that visual discrimination performance is facilitated when walking at preferred speeds but walking at 20% faster than preferred speed significantly impedes visual discrimination in older adults.

KW - Cognitive performance

KW - exercise

KW - ageing

KW - dual-task processing

U2 - 10.1016/j.bbr.2016.01.020

DO - 10.1016/j.bbr.2016.01.020

M3 - Article

VL - 302

SP - 100

EP - 103

JO - Behavioural Brain Research

JF - Behavioural Brain Research

SN - 0166-4328

ER -