Observational studyPhysiotherapy research international : the journal for researchers and clinicians in physical therapy2026
Evaluating the Discriminative Performance of SARC-F and SARC-CalF in Identifying Functional Impairment in Community-Dwelling Older Adults.
Observational study in Physiotherapy research international : the journal for researchers and clinicians in physical therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
background and purposeTo estimate the prevalence of sarcopenia risk, examine the association between reduced functional performance and sarcopenia risk using the SARC-F questionnaire (Strength, Assistance with walking, Rise from a chair, Climb stairs, and Falls) and the SARC-CalF tool (SARC-F combined with calf circumference), and evaluate the discriminative ability of these instruments to identify reduced functional performance among community-dwelling older adults living in a small municipality in Northeastern Brazil.
methodsThis cross-sectional observational study was conducted in Jacaraú, Paraíba, Brazil, and included 253 older adults. The discriminative ability of SARC-F and SARC-CalF to identify reduced functional performance was assessed using receiver operating characteristic (ROC) curve analysis. All analyses were conducted using R software, version 4.3.1.
resultsThe SARC-F demonstrated greater discriminative ability for identifying impairments in balance across the evaluated postures. Both the SARC-F and SARC-CalF showed comparable discriminative performance for reduced gait speed and lower-limb muscle strength. In contrast, the SARC-CalF showed superior discriminative ability for identifying low handgrip strength. DISCUSSION: Both the SARC-F and SARC-CalF demonstrated acceptable discriminative ability for identifying functional impairment, with area under the curve (AUC) values ranging from 0.60 to 0.80 across the functional domains evaluated.
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