Influence of knee osteoarthritis on functional performance, quality of life and pain in older women
Maiara Gonçalves dos Santos, Pricila Damiani, Ana Carolina Zappe Marcon, Alessandro Haupenthal, Núbia Carelli Pereira de Avelar
Abstract
Abstract Introduction: Knee osteoarthritis (KOA) is a common degenerative disease in older people, causing pain, stiffness and dysfunction. Objective: To determine the influence of KOA on functional performance (FP), quality of life (QoL) and pain in older women. Method: This is a cross-sectional study, in which 50 older women diagnosed with KOA and 51 without KOA participated. Participants were assessed using FP tests: Sit-to-stand (STS); Gait speed test (GST); Timed Up and Go (TUG); 6-minute walk test (6 MWT) and the Berg Balance Scale (BBS). Pain was assessed by the visual analog scale (VAS); quality of life by applying the SF-36; and self-perception of the disease by using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Results: No intergroup statistical differences were found in the BBS (p: 0.42), STS (p: 0.59) and 6MWT (p: 0.97). However, the KOA group showed slower GS (p < 0.00) and longer time in TUG (p < 0.00). They also presented higher pain levels (p < 0.01), worse perceived health status regarding pain, stiffness and physical function (WOMAC) (p < 0.01), as well as worse QoL indices in functional capacity, physical limitations, pain and overall health status (p < 0.010). Conclusion: The results of the study demonstrate that older women with KOA showed a decline in FP, QoL and higher pain levels.