Peak expiratory flow mediates the relationship between handgrip strength and timed up and go performance in elderly women, but not men
OBJECTIVE: The aim of the present study was to verify if there is sex difference in the associations among handgrip strength, peak expiratory flow (PEF) and timed up and go (TUG) test results. METHODS: The sample included 288 consecutive elderly men (n=93) and women (n=195). Functional capacity was measured using the TUG test, and muscle strength was measured based on handgrip. Moreover, as a measure of current health status, PEF was evaluated. Linear regression procedures were performed to analyze the relationships between handgrip and both PEF and TUG test results, with adjustment for confounders, and to identify the possible mediating role of PEF in the association between handgrip strength and TUG test results. RESULTS: In men, handgrip strength was associated with both PEF and TUG performance (p<0.01). After adjustment for PEF, the relationship between handgrip strength and TUG performance remained significant. In women, handgrip strength was also associated with both PEF and TUG performance (p<0.01). However, after adjustment for PEF, the relationship between handgrip strength and TUG performance was no longer significant. CONCLUSION: Mobility in the elderly is sex dependent. In particular, PEF mediates the relationship between handgrip strength and TUG performance in women, but not in men.
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Faculdade de Medicina / USP
2016
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oai:scielo:S1807-593220160009005172016-09-12Peak expiratory flow mediates the relationship between handgrip strength and timed up and go performance in elderly women, but not menRitti-Dias,Raphael MendesCucato,Gabriel Grizzode Mello Franco,Fábio GazelatoCendoroglo,Maysa SeabraNasri,FábioMonteiro-Costa,Maria Luizade Carvalho,José Antonio Malufde Matos,Luciana Diniz Nagem Janot Elderly Mobility Strength Pulmonary Function Aging OBJECTIVE: The aim of the present study was to verify if there is sex difference in the associations among handgrip strength, peak expiratory flow (PEF) and timed up and go (TUG) test results. METHODS: The sample included 288 consecutive elderly men (n=93) and women (n=195). Functional capacity was measured using the TUG test, and muscle strength was measured based on handgrip. Moreover, as a measure of current health status, PEF was evaluated. Linear regression procedures were performed to analyze the relationships between handgrip and both PEF and TUG test results, with adjustment for confounders, and to identify the possible mediating role of PEF in the association between handgrip strength and TUG test results. RESULTS: In men, handgrip strength was associated with both PEF and TUG performance (p<0.01). After adjustment for PEF, the relationship between handgrip strength and TUG performance remained significant. In women, handgrip strength was also associated with both PEF and TUG performance (p<0.01). However, after adjustment for PEF, the relationship between handgrip strength and TUG performance was no longer significant. CONCLUSION: Mobility in the elderly is sex dependent. In particular, PEF mediates the relationship between handgrip strength and TUG performance in women, but not in men.info:eu-repo/semantics/openAccessFaculdade de Medicina / USPClinics v.71 n.9 20162016-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322016000900517en10.6061/clinics/2016(09)06 |
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Ritti-Dias,Raphael Mendes Cucato,Gabriel Grizzo de Mello Franco,Fábio Gazelato Cendoroglo,Maysa Seabra Nasri,Fábio Monteiro-Costa,Maria Luiza de Carvalho,José Antonio Maluf de Matos,Luciana Diniz Nagem Janot |
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Ritti-Dias,Raphael Mendes Cucato,Gabriel Grizzo de Mello Franco,Fábio Gazelato Cendoroglo,Maysa Seabra Nasri,Fábio Monteiro-Costa,Maria Luiza de Carvalho,José Antonio Maluf de Matos,Luciana Diniz Nagem Janot Peak expiratory flow mediates the relationship between handgrip strength and timed up and go performance in elderly women, but not men |
author_facet |
Ritti-Dias,Raphael Mendes Cucato,Gabriel Grizzo de Mello Franco,Fábio Gazelato Cendoroglo,Maysa Seabra Nasri,Fábio Monteiro-Costa,Maria Luiza de Carvalho,José Antonio Maluf de Matos,Luciana Diniz Nagem Janot |
author_sort |
Ritti-Dias,Raphael Mendes |
title |
Peak expiratory flow mediates the relationship between handgrip strength and timed up and go performance in elderly women, but not men |
title_short |
Peak expiratory flow mediates the relationship between handgrip strength and timed up and go performance in elderly women, but not men |
title_full |
Peak expiratory flow mediates the relationship between handgrip strength and timed up and go performance in elderly women, but not men |
title_fullStr |
Peak expiratory flow mediates the relationship between handgrip strength and timed up and go performance in elderly women, but not men |
title_full_unstemmed |
Peak expiratory flow mediates the relationship between handgrip strength and timed up and go performance in elderly women, but not men |
title_sort |
peak expiratory flow mediates the relationship between handgrip strength and timed up and go performance in elderly women, but not men |
description |
OBJECTIVE: The aim of the present study was to verify if there is sex difference in the associations among handgrip strength, peak expiratory flow (PEF) and timed up and go (TUG) test results. METHODS: The sample included 288 consecutive elderly men (n=93) and women (n=195). Functional capacity was measured using the TUG test, and muscle strength was measured based on handgrip. Moreover, as a measure of current health status, PEF was evaluated. Linear regression procedures were performed to analyze the relationships between handgrip and both PEF and TUG test results, with adjustment for confounders, and to identify the possible mediating role of PEF in the association between handgrip strength and TUG test results. RESULTS: In men, handgrip strength was associated with both PEF and TUG performance (p<0.01). After adjustment for PEF, the relationship between handgrip strength and TUG performance remained significant. In women, handgrip strength was also associated with both PEF and TUG performance (p<0.01). However, after adjustment for PEF, the relationship between handgrip strength and TUG performance was no longer significant. CONCLUSION: Mobility in the elderly is sex dependent. In particular, PEF mediates the relationship between handgrip strength and TUG performance in women, but not in men. |
publisher |
Faculdade de Medicina / USP |
publishDate |
2016 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322016000900517 |
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