Peak expiratory flow mediates the relationship between handgrip strength and timed up and go performance in elderly women, but not men

Ritti-Dias, RM, Cucato, Gabriel, Franco, FG, Cendoroglo, MS, Nasri, F, Monteiro-Costa, ML, Carvalho, JA and Matos, LD (2016) Peak expiratory flow mediates the relationship between handgrip strength and timed up and go performance in elderly women, but not men. Clinics (São Paulo, Brazil), 71 (9). pp. 517-520. ISSN 1980-5322

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Official URL: https://doi.org/10.6061/clinics/2016(09)06

Abstract

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.

Item Type: Article
Uncontrolled Keywords: Activities of Daily Living, Aged, 80 and over, Aging/physiology, Cross-Sectional Studies, Female, Geriatric Assessment/methods, Hand Strength/physiology, Humans, Linear Models, Locomotion/physiology, Male, Peak Expiratory Flow Rate/physiology, Sex Factors, Time Factors, Time and Motion Studies
Subjects: B100 Anatomy, Physiology and Pathology
C600 Sports Science
Department: Faculties > Health and Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Rachel Branson
Date Deposited: 27 Feb 2020 11:30
Last Modified: 27 Feb 2020 11:30
URI: http://nrl.northumbria.ac.uk/id/eprint/42256

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