{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,28]],"date-time":"2026-01-28T23:43:10Z","timestamp":1769643790887,"version":"3.49.0"},"reference-count":25,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,12,22]],"date-time":"2025-12-22T00:00:00Z","timestamp":1766361600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,12,22]],"date-time":"2025-12-22T00:00:00Z","timestamp":1766361600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Physiotherapy Res Intl"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Functional capacity assessment in knee osteoarthritis (KOA) is essential because it relates to pain, disability, and quality of life. Reliable, sensitive, and validated tools are needed to measure lower limb function.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To validate the Brazilian Portuguese version of the 10\u2010item Lower Extremity Functional Scale (LEFS\u201010) for people with KOA.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A cross\u2010sectional validation study involved 100 participants with KOA. The agreement between the 10\u2010item (LEFS\u201010) and 20\u2010item (LEFS\u201020) scales was examined using Spearman's correlation coefficient (rho) between the LEFS\u201010 and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), the Numeric Pain Rating Scale (NPRS), and the World Health Organization Disability Assessment Schedule (WHODAS). Test\u2010retest reliability was measured with the intraclass correlation coefficient (ICC), the standard error of measurement (SEM), and the minimum detectable change (MDC). Internal consistency was assessed using Cronbach's alpha. Ceiling and floor effects were also evaluated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Most individuals had right or bilateral KOA, with diagnosis duration and persistent pain exceeding 5\u00a0years. LEFS\u201010 scores showed strong correlations with the original LEFS\u201020 (rho\u00a0=\u00a00.92), NPRS (rho\u00a0=\u00a0\u22120.78), WOMAC pain (rho\u00a0=\u00a0\u22120.69), stiffness (rho\u00a0=\u00a0\u22120.67), physical function (rho\u00a0=\u00a0\u22120.70), and WHODAS (rho\u00a0=\u00a0\u22120.74). Internal consistency was adequate (Cronbach's alpha\u00a0=\u00a00.89). In a subsample of 50 participants, test\u2013retest reliability was excellent (ICC\u00a0=\u00a00.98, 95% CI 0.97\u20130.99), with a SEM of 1.05 points (6.7%) and an MDC of 2.91 points (18.6%), with no ceiling or floor effects.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>The LEFS\u201010 demonstrates excellent concordance compared with LEFS\u201020, good convergent validity, adequate internal consistency, high reliability, and favorable measurement error parameters, making it suitable for individuals with KOA.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/pri.70153","type":"journal-article","created":{"date-parts":[[2025,12,22]],"date-time":"2025-12-22T08:56:42Z","timestamp":1766393802000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Validation of the 10\u2010Item Lower Extremity Functional Scale (LEFS\u201010) for Individuals With Knee Osteoarthritis"],"prefix":"10.1002","volume":"31","author":[{"given":"Daniella Dias de","family":"Oliveira","sequence":"first","affiliation":[{"name":"Postgraduate Program in Rehabilitation Sciences Nove de Julho University  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4281-2616","authenticated-orcid":false,"given":"Aron Charles Barbosa da","family":"Silva","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Rehabilitation Sciences Nove de Julho University  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8468-0434","authenticated-orcid":false,"given":"Jhonata Botelho","family":"Protazio","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Physical Education Universidade Federal do Maranh\u00e3o  S\u00e3o Lu\u00eds Maranh\u00e3o Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4684-1118","authenticated-orcid":false,"given":"Gabriela Nascimento de","family":"Santana","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Rehabilitation Sciences Nove de Julho University  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-6726-337X","authenticated-orcid":false,"given":"Bruno Ruocco","family":"Verengue","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Rehabilitation Sciences Nove de Julho University  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6945-0603","authenticated-orcid":false,"given":"Patr\u00edcia Gabrielle dos","family":"Santos","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Rehabilitation Sciences Nove de Julho University  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5403-8248","authenticated-orcid":false,"given":"Almir Vieira","family":"Dibai\u2010Filho","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Physical Education Universidade Federal do Maranh\u00e3o  S\u00e3o Lu\u00eds Maranh\u00e3o Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6627-7537","authenticated-orcid":false,"given":"Cid Andr\u00e9","family":"Fidelis\u2010de\u2010Paula\u2010Gomes","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Rehabilitation Sciences Nove de Julho University  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,12,22]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1177\/02692155241236611"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.1080\/09638288.2016.1254285"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1080\/09638288.2020.1754927"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00586\u2010021\u201007070\u20101"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.1177\/0269215516647180"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.joca.2024.09.012"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9780511996214"},{"key":"e_1_2_12_9_1","volume-title":"The Design and Analysis of Clinical Experiments","author":"Enderlein G.","year":"1986"},{"key":"e_1_2_12_10_1","article-title":"Translation and Validation of the Specific Quality of Life Questionnaire for Osteoarthritis WOMAC (Western Ontario and McMaster Universities) for Portuguese Language","author":"Fernandes M. 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