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Structural and Functional Changes of Hands and Legs in Early Rheumatoid Arthritis

Background and Objectives: The aim of this study was to assess if there are structural and functional changes of hands and legs already in early rheumatoid arthritis (ERA), compared with the population-based control group. Additionally, we aimed to identify if the changes are symmetrical in hands an...

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Autores principales: Valner, Annika, Kirsimägi, Ülle, Müller, Raili, Kull, Mart, Põlluste, Kaja, Lember, Margus, Kallikorm, Riina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8066246/
https://www.ncbi.nlm.nih.gov/pubmed/33800568
http://dx.doi.org/10.3390/medicina57040317
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author Valner, Annika
Kirsimägi, Ülle
Müller, Raili
Kull, Mart
Põlluste, Kaja
Lember, Margus
Kallikorm, Riina
author_facet Valner, Annika
Kirsimägi, Ülle
Müller, Raili
Kull, Mart
Põlluste, Kaja
Lember, Margus
Kallikorm, Riina
author_sort Valner, Annika
collection PubMed
description Background and Objectives: The aim of this study was to assess if there are structural and functional changes of hands and legs already in early rheumatoid arthritis (ERA), compared with the population-based control group. Additionally, we aimed to identify if the changes are symmetrical in hands and legs and if there are factors that are associated with these changes. The study was conducted, and, thus far, the results have been controversial. Materials and Methods: The study group consisted of 83 consecutive patients with ERA and 321 control subjects. Dual-Energy X-Ray Absorptiometry (DXA) machine was used to measure bone, lean and fat mass. Inflammation and bone markers, smoking and nutritional habits were assessed, to evaluate the effects of different factors. The 30-Second Chair Stand Test (30-CST) and the Handgrip Strength Test (HST) were used to estimate muscle strength. Results: The presence of ERA was associated with lower arm, leg lean mass and higher fat mass of arm, compared with control subjects. ERA was also associated with lower mean handgrip in HST and worse muscle strength of legs in the 30-CST. Bone mass changes were not so evident both in arms and legs. Smoking habits did not seem to have relevant effect on bone mass, muscle structural and functional changes, both on hands and legs. In ERA, lean mass of arm and leg was negatively associated with C-reactive protein (CRP). The intake of proteins in ERA was not associated with lean mass changes both in hands and legs. Conclusions: Structural and functional changes of hands and legs are different in ERA. ERA patients had higher fat mass of arm, lower lean mass of arm and leg and, accordingly, decreased muscle function. The lowering of lean mass of arm and leg in ERA was associated with the elevation of CRP.
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spelling pubmed-80662462021-04-25 Structural and Functional Changes of Hands and Legs in Early Rheumatoid Arthritis Valner, Annika Kirsimägi, Ülle Müller, Raili Kull, Mart Põlluste, Kaja Lember, Margus Kallikorm, Riina Medicina (Kaunas) Article Background and Objectives: The aim of this study was to assess if there are structural and functional changes of hands and legs already in early rheumatoid arthritis (ERA), compared with the population-based control group. Additionally, we aimed to identify if the changes are symmetrical in hands and legs and if there are factors that are associated with these changes. The study was conducted, and, thus far, the results have been controversial. Materials and Methods: The study group consisted of 83 consecutive patients with ERA and 321 control subjects. Dual-Energy X-Ray Absorptiometry (DXA) machine was used to measure bone, lean and fat mass. Inflammation and bone markers, smoking and nutritional habits were assessed, to evaluate the effects of different factors. The 30-Second Chair Stand Test (30-CST) and the Handgrip Strength Test (HST) were used to estimate muscle strength. Results: The presence of ERA was associated with lower arm, leg lean mass and higher fat mass of arm, compared with control subjects. ERA was also associated with lower mean handgrip in HST and worse muscle strength of legs in the 30-CST. Bone mass changes were not so evident both in arms and legs. Smoking habits did not seem to have relevant effect on bone mass, muscle structural and functional changes, both on hands and legs. In ERA, lean mass of arm and leg was negatively associated with C-reactive protein (CRP). The intake of proteins in ERA was not associated with lean mass changes both in hands and legs. Conclusions: Structural and functional changes of hands and legs are different in ERA. ERA patients had higher fat mass of arm, lower lean mass of arm and leg and, accordingly, decreased muscle function. The lowering of lean mass of arm and leg in ERA was associated with the elevation of CRP. MDPI 2021-03-28 /pmc/articles/PMC8066246/ /pubmed/33800568 http://dx.doi.org/10.3390/medicina57040317 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 (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ).
spellingShingle Article
Valner, Annika
Kirsimägi, Ülle
Müller, Raili
Kull, Mart
Põlluste, Kaja
Lember, Margus
Kallikorm, Riina
Structural and Functional Changes of Hands and Legs in Early Rheumatoid Arthritis
title Structural and Functional Changes of Hands and Legs in Early Rheumatoid Arthritis
title_full Structural and Functional Changes of Hands and Legs in Early Rheumatoid Arthritis
title_fullStr Structural and Functional Changes of Hands and Legs in Early Rheumatoid Arthritis
title_full_unstemmed Structural and Functional Changes of Hands and Legs in Early Rheumatoid Arthritis
title_short Structural and Functional Changes of Hands and Legs in Early Rheumatoid Arthritis
title_sort structural and functional changes of hands and legs in early rheumatoid arthritis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8066246/
https://www.ncbi.nlm.nih.gov/pubmed/33800568
http://dx.doi.org/10.3390/medicina57040317
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