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

Abstract

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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Correspondence to Monica Rodrigues Perracini.

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Do Carmo Correia de Lima, M., Loffredo Bilton, T., De Sousa Soares, W.J. et al. Maximum Walking Speed Can Improve the Diagnostic Value of Frailty among Community-Dwelling Older Adults a Cross-Sectional Study. J Frailty Aging 8, 39–41 (2019). https://doi.org/10.14283/jfa.2018.44

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Keywords

  • Usual gait speed
  • fast gait speed
  • sensitivity
  • specificity
  • likelihood ratios