The importance of objectively measuring functional tests in complement to self-report assessments in patients with knee osteoarthritis

Author(s)

Kawagosi Onodera, Carolina Mie ^{[1, 2]} ; Coelho-Junior, Helio Jose ^{[3, 4]} ; Carvalho Sampaio, Ricardo Aurelio ^{[3, 5]} ; Santos Duarte Lana, Jose Fabio ^{[2, 6, 7]} ; Milano Teixeira, Luis Felipe ^{[3, 8, 9]} ; Uchida, Marco Carlos ^{[3, 9]} ; Annichino Bizzacchi, Joyce Maria ^{[1, 2]}

Affiliation

^[1] Univ Estadual Campinas, Hematol Hemotherapy Ctr, Campinas, SP - Brazil

^[2] Univ Campinas UNICAMP, Hematol Hemotherapy Ctr, Rua Carlos Chagas, 480 Cidade Univ Zeferino Vaz, BR-13083878 Campinas, SP - Brazil

^[3] Univ Estadual Campinas, Sch Phys Educ, Dept Adapted Phys Act, Campinas, SP - Brazil

^[4] Univ Cattolica Sacro Cuore, Dept Geriatr, Rome - Italy

^[5] Univ Fed Sergipe, Dept Hlth Educ, Lagarto, SE - Brazil

^[6] Res Inst Sports Med Orthoped & Regenerat iMOR, Uberaba, MG - Brazil

^[7] Univ Estadual Campinas, Inst Orthoped & Traumatol, Campinas, SP - Brazil

^[8] Sorocabas Univ, Dept Phys Educ, Sorocaba, SP - Brazil

^[9] Univ Campinas UNICAMP, Sch Phys Educ, 701 Cidade Univ Zeferino Vaz Barao Geraldo, BR-13083851 Campinas, SP - Brazil

• Document type: Journal article
• Source: GAIT & POSTURE; v. 82, p. 33-37, OCT 2020.
• Web of Science Citations: 0

Abstract

Background: Osteoarthritis (OA) is a chronic degenerative disease which can result in chronic pain, loss of joint function and consequently decline in quality of life. Research question: A variety of instruments that measure the different dimensions of health status in patients with OA are available. However, despite the fact that WOMAC and other questionnaires and scales may provide additional understanding regarding the patient's condition, some studies have reported discrepancies between patients' perceptions and their actual ability to perform the task. The aim of the present study was investigate the physical capabilities with the function domain of WOMAC. Methods: This study has a cross-sectional design including patients diagnosed with moderate to severe knee OA (i. e., grades II, III and IV) according to the Kellgren-Lawrence. These patients were submitted to the battery of functional tests recommended by the OARSI group (30-second chair stand test, 40 m fast paced walking test, Stair climb test, timed ``Up and Go{''}, and Six-minute walking test) and filled the WOMAC. Pearson's correlation and multiple linear regression was applied. Results: A total of 153 patients were included. A significant and weak correlation was observed between WOMAC and the 40-meter walking test, TUG, stair-climbing test, and the 6MWT. In addition, 30-second chair stand test demonstrated a significant and moderate correlation (r=-0.503). The multiple regression analysis results indicated that only 30-second chair stand test was a significant (p = 0.001) predictor of WOMAC. This result remains significant even after adjusting for age, BMI, total muscle mass, and number of knees affected Significance: The 30-second chair stand test is associated with the WOMAC function domain. There is no correlation of this domain with any other functional tests, emphasizing the importance of including other tests for a global evaluation. (AU)

• FAPESP's process: 14/12084-7 - Evaluation of correlation between physical assessment, and functional evaluation scales of subjective perception in patients undergoing treatment for a knee osteoarthritis
• Grantee: Carolina Mie Kawagosi Onodera
• Support Opportunities: Scholarships in Brazil - Master