Maximum Walking Speed Can Improve the Diagnostic Value of Frailty among Community-Dwelling Older Adults a Cross-Sectional Study

Maximum Walking Speed Can Improve the Diagnostic Value of Frailty among Community-Dwelling Older Adults a Cross-Sectional Study

This study investigates the diagnostic accuracy of the combination of usual walking speed (UWS) and maximum walking speed (MWS) to identify frailty in community-dwelling older adults. A population-based study with 758 participants aged 65 and older was conducted. Frailty syndrome was determined usin...

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Bibliographic Details
Published in:The Journal of frailty & aging Vol. 8; no. 1; pp. 39 - 41
Main Authors: do Carmo Correia de Lima, M, Loffredo Bilton, T, Jefferson de Sousa Soares, W, Paccini Lustosa, L, Ferriolli, E, Rodrigues Perracini, M
Format: Journal Article
Language:English
Published: France Springer Nature B.V 01-01-2019
Subjects:
Accuracy
Cognitive ability
Community
Data analysis
Frail
Frailty
Gender
Genotype & phenotype
Medical diagnosis
Older people
Physiology
Primary care
Walking
Walking speed
specificity
fast gait speed
sensitivity
Usual gait speed
likelihood ratios
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Summary:This study investigates the diagnostic accuracy of the combination of usual walking speed (UWS) and maximum walking speed (MWS) to identify frailty in community-dwelling older adults. A population-based study with 758 participants aged 65 and older was conducted. Frailty syndrome was determined using the Fried phenotype. UWS and MWS were evaluated in a 4.6-meter path. Both measures were categorized using the 1.0 m/s cut points, and participants were categorized into three groups: those with "very good", "good" and "insufficient" walking reserve capacity (WRC). Of all participants, 9% were identified as frail and 47% as prefrail. The "insufficient" WRC presented a low sensitivity of 0.55, high specificity of 0.91 and moderately useful likelihood ratios (LR+ 6.57, LR- 0.48) to identify frailty. Based on Fagan's nomogram, an elder's corresponding post-test probability of being frail with an "insufficient" WRC would be around 40%, which substantially increased the diagnostic accuracy of frailty.
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ISSN:2260-1341
2273-4309
DOI:10.14283/jfa.2018.44