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Age related differences in balance approached by a novel dual-task test of anticipatory postural control strategies

INTRODUCTION: Assessment of balance is key to identifying individuals with postural control deficits and an increased fall risk. Subjects may compensate for their deficits by utilizing other strategies; to avoid this, it is recommended to assess postural control using a dual-task test. In most dual-...

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Autores principales: Laessoe, Uffe, Larsen, Camilla Bille, Schunck, Line Noerkjaer, Lehmann, Line Jensen, Iversen, Halla
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6597154/
https://www.ncbi.nlm.nih.gov/pubmed/31246971
http://dx.doi.org/10.1371/journal.pone.0218371
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author Laessoe, Uffe
Larsen, Camilla Bille
Schunck, Line Noerkjaer
Lehmann, Line Jensen
Iversen, Halla
author_facet Laessoe, Uffe
Larsen, Camilla Bille
Schunck, Line Noerkjaer
Lehmann, Line Jensen
Iversen, Halla
author_sort Laessoe, Uffe
collection PubMed
description INTRODUCTION: Assessment of balance is key to identifying individuals with postural control deficits and an increased fall risk. Subjects may compensate for their deficits by utilizing other strategies; to avoid this, it is recommended to assess postural control using a dual-task test. In most dual-task tests, it is difficult to monitor the performance in the secondary task and the individual’s task prioritisation. This study evaluated a new dual-task testing approach. MATERIALS AND METHODS: A convenience sample of 54 community-dwelling elderly (age 65+ years) and a reference group of 20 young participants were included in the study. They performed a test in which they could utilize cues to improve their baseline performance, provided their level of postural control allowed them residual attention capacity for this cognitive task. RESULTS: Significant performance differences were seen between the young and the elderly. The young group improved their performance time by 23.9% (10.7) and 7.1% (14.2) with a cue and a reverse cue, respectively, whereas the elderly failed to improve their performance time. The test was unable to distinguish between individuals within the elderly group due to a floor effect. DISCUSSION: The test reveals an individual’s capacity to use cues for anticipatory postural control strategies in a dual-task setting and thereby estimates automatization of postural control. While the young subjects were capable of improving their performance during dual-task conditions, the elderly subjects apparently had no residual attentional capacity allowing them to utilize the facilitating cues. Within the elderly group, the dual-task aspects of the test added no value with respect to differentiation in the level of postural control.
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spelling pubmed-65971542019-07-05 Age related differences in balance approached by a novel dual-task test of anticipatory postural control strategies Laessoe, Uffe Larsen, Camilla Bille Schunck, Line Noerkjaer Lehmann, Line Jensen Iversen, Halla PLoS One Research Article INTRODUCTION: Assessment of balance is key to identifying individuals with postural control deficits and an increased fall risk. Subjects may compensate for their deficits by utilizing other strategies; to avoid this, it is recommended to assess postural control using a dual-task test. In most dual-task tests, it is difficult to monitor the performance in the secondary task and the individual’s task prioritisation. This study evaluated a new dual-task testing approach. MATERIALS AND METHODS: A convenience sample of 54 community-dwelling elderly (age 65+ years) and a reference group of 20 young participants were included in the study. They performed a test in which they could utilize cues to improve their baseline performance, provided their level of postural control allowed them residual attention capacity for this cognitive task. RESULTS: Significant performance differences were seen between the young and the elderly. The young group improved their performance time by 23.9% (10.7) and 7.1% (14.2) with a cue and a reverse cue, respectively, whereas the elderly failed to improve their performance time. The test was unable to distinguish between individuals within the elderly group due to a floor effect. DISCUSSION: The test reveals an individual’s capacity to use cues for anticipatory postural control strategies in a dual-task setting and thereby estimates automatization of postural control. While the young subjects were capable of improving their performance during dual-task conditions, the elderly subjects apparently had no residual attentional capacity allowing them to utilize the facilitating cues. Within the elderly group, the dual-task aspects of the test added no value with respect to differentiation in the level of postural control. Public Library of Science 2019-06-27 /pmc/articles/PMC6597154/ /pubmed/31246971 http://dx.doi.org/10.1371/journal.pone.0218371 Text en © 2019 Laessoe et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Laessoe, Uffe
Larsen, Camilla Bille
Schunck, Line Noerkjaer
Lehmann, Line Jensen
Iversen, Halla
Age related differences in balance approached by a novel dual-task test of anticipatory postural control strategies
title Age related differences in balance approached by a novel dual-task test of anticipatory postural control strategies
title_full Age related differences in balance approached by a novel dual-task test of anticipatory postural control strategies
title_fullStr Age related differences in balance approached by a novel dual-task test of anticipatory postural control strategies
title_full_unstemmed Age related differences in balance approached by a novel dual-task test of anticipatory postural control strategies
title_short Age related differences in balance approached by a novel dual-task test of anticipatory postural control strategies
title_sort age related differences in balance approached by a novel dual-task test of anticipatory postural control strategies
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6597154/
https://www.ncbi.nlm.nih.gov/pubmed/31246971
http://dx.doi.org/10.1371/journal.pone.0218371
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