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The Association between Poor Diet Quality, Physical Fatigability and Physical Function in the Oldest-Old from the Geisinger Rural Aging Study

More perceived physical fatigability and poor diet quality are associated with impairments in physical function in older adults. However, the degree to which more perceived fatigability explains the association between poor diet quality and low physical function is unknown. We examined this relation...

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Autores principales: Davis, Brett, Liu, Yi-Hsuan, Stampley, James, Wood, G. Craig, Mitchell, Diane C., Jensen, Gordon L., Gao, Xiang, Glynn, Nancy W., Still, Christopher D., Irving, Brian A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8167721/
https://www.ncbi.nlm.nih.gov/pubmed/33920900
http://dx.doi.org/10.3390/geriatrics6020041
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author Davis, Brett
Liu, Yi-Hsuan
Stampley, James
Wood, G. Craig
Mitchell, Diane C.
Jensen, Gordon L.
Gao, Xiang
Glynn, Nancy W.
Still, Christopher D.
Irving, Brian A.
author_facet Davis, Brett
Liu, Yi-Hsuan
Stampley, James
Wood, G. Craig
Mitchell, Diane C.
Jensen, Gordon L.
Gao, Xiang
Glynn, Nancy W.
Still, Christopher D.
Irving, Brian A.
author_sort Davis, Brett
collection PubMed
description More perceived physical fatigability and poor diet quality are associated with impairments in physical function in older adults. However, the degree to which more perceived fatigability explains the association between poor diet quality and low physical function is unknown. We examined this relationship in 122 (66F, 56M) of the oldest-old participants from the Geisinger Rural Aging Study (GRAS). We used 24-h dietary recalls to assess the Healthy Eating Index (HEI), the Pittsburgh Fatigability Scale (PFS, 0–50) to assess perceived physical fatigability, and the PROMIS Physical Function 20a* to assess physical function. We grouped participants into three age categories: 80–84 (n = 51), 85–89 (n = 51), and 90+ (n = 20) years. Multiple linear regression revealed that a lower HEI was associated with higher PFS Physical score after adjusting for age group, sex, body mass index, and the number of medical conditions (p = 0.001). Several macro- and micro-nutrient intakes were also lower in those reporting more (≥15) compared to less (<15) perceived physical fatigability. Mediation analysis revealed that PFS Physical scores explained ~65% (p = 0.001) of the association between HEI total score and PROMIS19 Physical Function score. Poor diet quality may contribute to more perceived physical fatigability, which could exacerbate impairments in the oldest-old’s physical function.
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spelling pubmed-81677212021-06-02 The Association between Poor Diet Quality, Physical Fatigability and Physical Function in the Oldest-Old from the Geisinger Rural Aging Study Davis, Brett Liu, Yi-Hsuan Stampley, James Wood, G. Craig Mitchell, Diane C. Jensen, Gordon L. Gao, Xiang Glynn, Nancy W. Still, Christopher D. Irving, Brian A. Geriatrics (Basel) Article More perceived physical fatigability and poor diet quality are associated with impairments in physical function in older adults. However, the degree to which more perceived fatigability explains the association between poor diet quality and low physical function is unknown. We examined this relationship in 122 (66F, 56M) of the oldest-old participants from the Geisinger Rural Aging Study (GRAS). We used 24-h dietary recalls to assess the Healthy Eating Index (HEI), the Pittsburgh Fatigability Scale (PFS, 0–50) to assess perceived physical fatigability, and the PROMIS Physical Function 20a* to assess physical function. We grouped participants into three age categories: 80–84 (n = 51), 85–89 (n = 51), and 90+ (n = 20) years. Multiple linear regression revealed that a lower HEI was associated with higher PFS Physical score after adjusting for age group, sex, body mass index, and the number of medical conditions (p = 0.001). Several macro- and micro-nutrient intakes were also lower in those reporting more (≥15) compared to less (<15) perceived physical fatigability. Mediation analysis revealed that PFS Physical scores explained ~65% (p = 0.001) of the association between HEI total score and PROMIS19 Physical Function score. Poor diet quality may contribute to more perceived physical fatigability, which could exacerbate impairments in the oldest-old’s physical function. MDPI 2021-04-15 /pmc/articles/PMC8167721/ /pubmed/33920900 http://dx.doi.org/10.3390/geriatrics6020041 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Davis, Brett
Liu, Yi-Hsuan
Stampley, James
Wood, G. Craig
Mitchell, Diane C.
Jensen, Gordon L.
Gao, Xiang
Glynn, Nancy W.
Still, Christopher D.
Irving, Brian A.
The Association between Poor Diet Quality, Physical Fatigability and Physical Function in the Oldest-Old from the Geisinger Rural Aging Study
title The Association between Poor Diet Quality, Physical Fatigability and Physical Function in the Oldest-Old from the Geisinger Rural Aging Study
title_full The Association between Poor Diet Quality, Physical Fatigability and Physical Function in the Oldest-Old from the Geisinger Rural Aging Study
title_fullStr The Association between Poor Diet Quality, Physical Fatigability and Physical Function in the Oldest-Old from the Geisinger Rural Aging Study
title_full_unstemmed The Association between Poor Diet Quality, Physical Fatigability and Physical Function in the Oldest-Old from the Geisinger Rural Aging Study
title_short The Association between Poor Diet Quality, Physical Fatigability and Physical Function in the Oldest-Old from the Geisinger Rural Aging Study
title_sort association between poor diet quality, physical fatigability and physical function in the oldest-old from the geisinger rural aging study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8167721/
https://www.ncbi.nlm.nih.gov/pubmed/33920900
http://dx.doi.org/10.3390/geriatrics6020041
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