Relação da força isométrica máxima de quadríceps e cinesiofobia com o desempenho nos testes de caminhada de seis minutos de mulheres com osteoartrite de joelho

Abstract

Introduction: Osteoarthritis is a disease that promotes progressive wear of the knee joint, being the main cause of pain and locomotor disability in the world. In addition, it generates changes in the locomotion capacity. Objective: To analyze the influence of kinesiophobia and maximal isometric quadriceps muscle strength on the performance of the six-minute walk test in women with knee osteoarthritis. Materials and Methods: This is a cross-sectional study with a sample of 49 women diagnosed with osteoarthritis. The evaluation was carried out in a single moment. Variables studied: isometric strength of the quadriceps; level of fear of movement (kinesiophobia) and ability to walk. Simple linear regression analyzes were performed, with walking ability as the dependent variable and maximal isometric strength and kinesiophobia as independent variables. Data were presented with mean and standard deviation and analyzed using SPSS Statistic 22.0 software, considering p<0.05 as significant. Results: The main finding was the direct relationship between the variables maximum isometric strength (FIM) of the quadriceps (p=0.01*) and walking ability in women with knee osteoarthritis (R²=0.27); different from the independent variable kinesiophobia, which did not show significant statistics, showing that it does not directly interfere with walking ability. Conclusion: it was concluded that there is a direct relationship between the maximum isometric strength of the quadriceps and walking capacity, which can transport the result to intensify the treatment and thus improve one of the greatest difficulties of this profile of patients.