Análise do desempenho funcional de indivíduos com DPOC a partir de diferentes protocolos do teste sentar e levantar

Abstract

Introduction: COPD mainly affects the lungs, but it also causes extrapulmonary manifestations, which culminate in functional impairment. The sit-stand test, in its different protocols, allows the identification of functional impairment. Objectives: To compare the functional impairment presented by individuals with COPD based on three different sit-to-stand test (STST) protocols derived from the 1-minute STST (1MSTST). Methods: This is an observational and cross-sectional study, in which individuals with COPD were included, aged ≥40 years, clinically stable at baseline and followed up at the Pulmonology outpatient clinic of a university hospital. Data collection took place using an assessment form with sociodemographic data and tests such as the 1MSTST, from which the results of the 5-repetition STST (5RSTST) and 30 seconds STST (30SSTST) were derived, in addition to scales such as the modified Medical Research Council (mMRC) scale, and the validated COPD assessment test (CAT). Results: 55 individuals were included, 53% of whom were male, mean age of 70 ± 9 years, with an average forced expiratory volume in 1 second of 56 ± 21% of predicted. It was observed that the 5RSTST, 30SSTST and 1MSTST results presented by the individuals were statistically lower than predicted (p<0.05). 1MSTST presented a worse result in percentage of predicted in comparison with 30SSTST (48 ± 16 vs. 52 ± 16% predicted, respectively; p=0.013), and the result in number of repetitions per second was worse in the 30SSTST and 1MSTST protocols in comparison with the 5RSTST (p<0.01). Conclusion: Individuals with COPD showed reduced functional performance on the three versions of the STST. However, the 1MSTST seems to be the test that best demonstrates the reduced functional performance of these individuals.