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Convergent validity and inter-rater reliability of a lower-limb multimodal physical function assessment in community-dwelling older adults
Introduction: Lower-limb physical function declines with age and contributes to a greater difficulty in performing activities of daily living. Existing assessments of lower-limb function assess one dimension of movement in isolation or are not time-efficient, which discourages their use in community...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10318151/ https://www.ncbi.nlm.nih.gov/pubmed/37408773 http://dx.doi.org/10.3389/fragi.2023.1196389 |
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author | O’Brien, Myles W. Neyedli, Heather F. Bosquet, Laurent Leadbetter, Brianna Smith, Alex Gallant, Francois Tanguay, Pamela Bélanger, Mathieu Mekari, Said |
author_facet | O’Brien, Myles W. Neyedli, Heather F. Bosquet, Laurent Leadbetter, Brianna Smith, Alex Gallant, Francois Tanguay, Pamela Bélanger, Mathieu Mekari, Said |
author_sort | O’Brien, Myles W. |
collection | PubMed |
description | Introduction: Lower-limb physical function declines with age and contributes to a greater difficulty in performing activities of daily living. Existing assessments of lower-limb function assess one dimension of movement in isolation or are not time-efficient, which discourages their use in community and clinical settings. We aimed to address these limitations by assessing the inter-rater reliability and convergent validity of a new multimodal functional lower-limb assessment (FLA). Methods: FLA consists of five major functional movement tasks (rising from a chair, walking gait, stair ascending/descending, obstacle avoidance, and descending to a chair) performed consecutively. A total of 48 community-dwelling older adults (32 female participants; age: 71 ± 6 years) completed the FLA as well as timed up-and-go, 30-s sit-to-stand, and 6-min walk tests. Results: Slower FLA time was correlated with a slower timed up-and-go test (ρ = 0.70), less sit-to-stand repetitions (ρ = −0.65), and a shorter distance in the 6-min walk test (ρ = −0.69; all, p < 0.001). Assessments by two raters were not different (12.28 ± 3.86 s versus 12.29 ± 3.83 s, p = 0.98; inter-rater reliability ρ = 0.993, p < 0.001) and were statistically equivalent (via equivalence testing). Multiple regression and relative weights analyses demonstrated that FLA times were most predicted by the timed up-and-go performance [adjusted R ( 2 ) = 0.75; p < 0.001; raw weight 0.42 (95% CI: 0.27, 0.53)]. Discussion: Our findings document the high inter-rater reliability and moderate-strong convergent validity of the FLA. These findings warrant further investigation into the predictive validity of the FLA for its use as an assessment of lower-limb physical function among community-dwelling older adults. |
format | Online Article Text |
id | pubmed-10318151 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-103181512023-07-05 Convergent validity and inter-rater reliability of a lower-limb multimodal physical function assessment in community-dwelling older adults O’Brien, Myles W. Neyedli, Heather F. Bosquet, Laurent Leadbetter, Brianna Smith, Alex Gallant, Francois Tanguay, Pamela Bélanger, Mathieu Mekari, Said Front Aging Aging Introduction: Lower-limb physical function declines with age and contributes to a greater difficulty in performing activities of daily living. Existing assessments of lower-limb function assess one dimension of movement in isolation or are not time-efficient, which discourages their use in community and clinical settings. We aimed to address these limitations by assessing the inter-rater reliability and convergent validity of a new multimodal functional lower-limb assessment (FLA). Methods: FLA consists of five major functional movement tasks (rising from a chair, walking gait, stair ascending/descending, obstacle avoidance, and descending to a chair) performed consecutively. A total of 48 community-dwelling older adults (32 female participants; age: 71 ± 6 years) completed the FLA as well as timed up-and-go, 30-s sit-to-stand, and 6-min walk tests. Results: Slower FLA time was correlated with a slower timed up-and-go test (ρ = 0.70), less sit-to-stand repetitions (ρ = −0.65), and a shorter distance in the 6-min walk test (ρ = −0.69; all, p < 0.001). Assessments by two raters were not different (12.28 ± 3.86 s versus 12.29 ± 3.83 s, p = 0.98; inter-rater reliability ρ = 0.993, p < 0.001) and were statistically equivalent (via equivalence testing). Multiple regression and relative weights analyses demonstrated that FLA times were most predicted by the timed up-and-go performance [adjusted R ( 2 ) = 0.75; p < 0.001; raw weight 0.42 (95% CI: 0.27, 0.53)]. Discussion: Our findings document the high inter-rater reliability and moderate-strong convergent validity of the FLA. These findings warrant further investigation into the predictive validity of the FLA for its use as an assessment of lower-limb physical function among community-dwelling older adults. Frontiers Media S.A. 2023-06-20 /pmc/articles/PMC10318151/ /pubmed/37408773 http://dx.doi.org/10.3389/fragi.2023.1196389 Text en Copyright © 2023 O’Brien, Neyedli, Bosquet, Leadbetter, Smith, Gallant, Tanguay, Bélanger and Mekari. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Aging O’Brien, Myles W. Neyedli, Heather F. Bosquet, Laurent Leadbetter, Brianna Smith, Alex Gallant, Francois Tanguay, Pamela Bélanger, Mathieu Mekari, Said Convergent validity and inter-rater reliability of a lower-limb multimodal physical function assessment in community-dwelling older adults |
title | Convergent validity and inter-rater reliability of a lower-limb multimodal physical function assessment in community-dwelling older adults |
title_full | Convergent validity and inter-rater reliability of a lower-limb multimodal physical function assessment in community-dwelling older adults |
title_fullStr | Convergent validity and inter-rater reliability of a lower-limb multimodal physical function assessment in community-dwelling older adults |
title_full_unstemmed | Convergent validity and inter-rater reliability of a lower-limb multimodal physical function assessment in community-dwelling older adults |
title_short | Convergent validity and inter-rater reliability of a lower-limb multimodal physical function assessment in community-dwelling older adults |
title_sort | convergent validity and inter-rater reliability of a lower-limb multimodal physical function assessment in community-dwelling older adults |
topic | Aging |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10318151/ https://www.ncbi.nlm.nih.gov/pubmed/37408773 http://dx.doi.org/10.3389/fragi.2023.1196389 |
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