Normative reference values of handgrip strength for Brazilian older people aged 65 to 90 years: Evidence from the multicenter Fibra‑BR study.

<h4>Background</h4>Handgrip strength (HGS) is an indicator of muscle strength, suited for evaluating the aging process. Its use depends on the availability of reliable normative reference values (NRV). The main objective of this study is to provide NRV of HGS for Brazilians aged 65 to 90...

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Autores principales:	Michael Eduardo Reichenheim, Roberto Alves Lourenço, Janaína Santos Nascimento, Virgílio Garcia Moreira, Anita Liberalesso Neri, Rodrigo Martins Ribeiro, Lygia Paccini Lustosa, Eduardo Ferriolli
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3fee1a26da2c440ba26f1d35af52bf54
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spelling	oai:doaj.org-article:3fee1a26da2c440ba26f1d35af52bf542021-11-25T06:19:22ZNormative reference values of handgrip strength for Brazilian older people aged 65 to 90 years: Evidence from the multicenter Fibra‑BR study.1932-620310.1371/journal.pone.0250925https://doaj.org/article/3fee1a26da2c440ba26f1d35af52bf542021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0250925https://doaj.org/toc/1932-6203<h4>Background</h4>Handgrip strength (HGS) is an indicator of muscle strength, suited for evaluating the aging process. Its use depends on the availability of reliable normative reference values (NRV). The main objective of this study is to provide NRV of HGS for Brazilians aged 65 to 90 years.<h4>Methods</h4>Participants were from the Frailty in Brazilian Older People research. 2,999 successful aging (SA) subjects comprised the development sample. HGS was measured using a hydraulic dynamometer. Obtaining NRV involved regressing HGS on age per sex-height strata, fitting separate fractional polynomial (FP) models for the mean and coefficient of variation. Model fit was assessed via standardized residuals, probability/quantile plots, and comparing observed to normal expected percentages of subjects falling within specified centile intervals. For validation, the latter procedure was applied to 2,369 unsuccessfully aging (UA) subjects.<h4>Results</h4>Across strata, the best-fitting models for the means were FP of power 1. FP models for the CV indicated age invariance, entailing steady heteroscedastic age decline in SD since coefficients for the means were negative and SD = CV×mean. All models adjusted well. Centiles distributions for the SA and UA populations showed anticipated patterns, respectively falling on and below the normative expected centile references. Results (NRV) are presented in tables and centile charts. Equations are also provided.<h4>Conclusion</h4>NRV/charts may be endorsed for routine use, while still tested further. They would aid professionals caring for older people, not only to identify those at risk and eligible for immediate provisions, but also in planning prevention and rehabilitation measures.Michael Eduardo ReichenheimRoberto Alves LourençoJanaína Santos NascimentoVirgílio Garcia MoreiraAnita Liberalesso NeriRodrigo Martins RibeiroLygia Paccini LustosaEduardo FerriolliPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0250925 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Michael Eduardo Reichenheim Roberto Alves Lourenço Janaína Santos Nascimento Virgílio Garcia Moreira Anita Liberalesso Neri Rodrigo Martins Ribeiro Lygia Paccini Lustosa Eduardo Ferriolli Normative reference values of handgrip strength for Brazilian older people aged 65 to 90 years: Evidence from the multicenter Fibra‑BR study.
description	<h4>Background</h4>Handgrip strength (HGS) is an indicator of muscle strength, suited for evaluating the aging process. Its use depends on the availability of reliable normative reference values (NRV). The main objective of this study is to provide NRV of HGS for Brazilians aged 65 to 90 years.<h4>Methods</h4>Participants were from the Frailty in Brazilian Older People research. 2,999 successful aging (SA) subjects comprised the development sample. HGS was measured using a hydraulic dynamometer. Obtaining NRV involved regressing HGS on age per sex-height strata, fitting separate fractional polynomial (FP) models for the mean and coefficient of variation. Model fit was assessed via standardized residuals, probability/quantile plots, and comparing observed to normal expected percentages of subjects falling within specified centile intervals. For validation, the latter procedure was applied to 2,369 unsuccessfully aging (UA) subjects.<h4>Results</h4>Across strata, the best-fitting models for the means were FP of power 1. FP models for the CV indicated age invariance, entailing steady heteroscedastic age decline in SD since coefficients for the means were negative and SD = CV×mean. All models adjusted well. Centiles distributions for the SA and UA populations showed anticipated patterns, respectively falling on and below the normative expected centile references. Results (NRV) are presented in tables and centile charts. Equations are also provided.<h4>Conclusion</h4>NRV/charts may be endorsed for routine use, while still tested further. They would aid professionals caring for older people, not only to identify those at risk and eligible for immediate provisions, but also in planning prevention and rehabilitation measures.
format	article
author	Michael Eduardo Reichenheim Roberto Alves Lourenço Janaína Santos Nascimento Virgílio Garcia Moreira Anita Liberalesso Neri Rodrigo Martins Ribeiro Lygia Paccini Lustosa Eduardo Ferriolli
author_facet	Michael Eduardo Reichenheim Roberto Alves Lourenço Janaína Santos Nascimento Virgílio Garcia Moreira Anita Liberalesso Neri Rodrigo Martins Ribeiro Lygia Paccini Lustosa Eduardo Ferriolli
author_sort	Michael Eduardo Reichenheim
title	Normative reference values of handgrip strength for Brazilian older people aged 65 to 90 years: Evidence from the multicenter Fibra‑BR study.
title_short	Normative reference values of handgrip strength for Brazilian older people aged 65 to 90 years: Evidence from the multicenter Fibra‑BR study.
title_full	Normative reference values of handgrip strength for Brazilian older people aged 65 to 90 years: Evidence from the multicenter Fibra‑BR study.
title_fullStr	Normative reference values of handgrip strength for Brazilian older people aged 65 to 90 years: Evidence from the multicenter Fibra‑BR study.
title_full_unstemmed	Normative reference values of handgrip strength for Brazilian older people aged 65 to 90 years: Evidence from the multicenter Fibra‑BR study.
title_sort	normative reference values of handgrip strength for brazilian older people aged 65 to 90 years: evidence from the multicenter fibra‑br study.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/3fee1a26da2c440ba26f1d35af52bf54
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Normative reference values of handgrip strength for Brazilian older people aged 65 to 90 years: Evidence from the multicenter Fibra‑BR study.

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