Evidence map›Paper›PMID 42759264›Full record

ArticleBrazilian journal of physical therapy2026

Translation, cross-cultural adaptation and measurement properties of the Brazilian Portuguese version of the central aspects of pain in the knee in individuals with knee osteoarthritis.

Gustavo Laroqui de Carvalho, Diogo Simões Fonseca, Pedro Henrique Berbert de Carvalho, Ney Armando de Mello Meziat Filho, Diogo Carvalho Felício

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Article in Brazilian journal of 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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5 · Who and what money

Authors and funding

5 authors.

Gustavo Laroqui de CarvalhoPost-graduate Program in Rehabilitation Sciences and Functional Physical Performance, School of Physical Therapy, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil.
Diogo Simões FonsecaPost-graduate Program in Rehabilitation Sciences and Functional Physical Performance, School of Physical Therapy, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil; Department of Physical Therapy, Federal University of Juiz de Fora, Juiz de Fora, Brazil.
Pedro Henrique Berbert de CarvalhoNICTA, Body Image and Eating Disorders Research Group, Federal University of Juiz de Fora, Governador Valadares, Brazil; AMBULIM, Eating Disorders Program, Institute of Psychiatry, University of São Paulo, São Paulo, Brazil.
Ney Armando de Mello Meziat FilhoAugusto Motta University Center (UNISUAM), Rio de Janeiro, RJ, Brazil.
Diogo Carvalho FelícioPost-graduate Program in Rehabilitation Sciences and Functional Physical Performance, School of Physical Therapy, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil; Department of Physical Therapy, Federal University of Juiz de Fora, Juiz de Fora, Brazil. Electronic address: diogo.felicio@ufjf.br.

Funding

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6 · The paper itself

Abstract

backgroundOsteoarthritis is the most common joint disease worldwide and the leading cause of disability related to joint conditions. There are few relevant musculoskeletal pain measures adapted to Brazilian Portuguese, and the Central Aspects of Pain in the Knee (CAP-Knee) is not yet available in this language version.

objectiveTo cross-culturally adapt and evaluate the measurement properties of the Brazilian Portuguese version (Br) of the CAP-Knee.

methodsThis was a methodological study with two phases: (1) the CAP-Knee was translated and cross-culturally adapted into Brazilian Portuguese; (2) measurement properties were tested. Patients with knee osteoarthritis (n = 130) completed the CAP-Knee-Br, as well as pain and central sensitization measures. Structural validity was assessed using exploratory and confirmatory factor analyses. Furthermore, standard error of measurement, minimal detectable change, percentage of standard error of measurement error, floor and ceiling effects, McDonald's omega (internal consistency), and the intraclass correlation coefficient (test-retest reliability) were calculated.

resultsThe CAP-Knee-Br showed cross-cultural equivalence with the original version. Exploratory and confirmatory factor analysis replicated the original one-dimensional structure with 8 items. We found positive correlations between the CAP-Knee-Br with pain and central sensitization measures. The standard error of measurement, the minimal detectable change, and the percentage of the standard error of measurement were all good. No floor or ceiling effects were observed. The CAP-Knee showed good reliability with adequate internal consistency (0.76 [95% CI: 0.69, 0.82]) and good test-retest stability (0.89 [95% CI: 0.84, 0.94]).

conclusionThe CAP-Knee-Br proved to be a valid and reliable instrument for assessing the central aspects of pain in Brazilian individuals with knee osteoarthritis.

Indexed as

Chronic painFactor analysisKnee jointOsteoarthitisPsychometricsReliability

Identifiers

PMID42759264
PMCPMC13627904

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