Morsch, Ana Lúcia Bernardo de CarvalhoBernstein, Fernanda Luzia2022-02-012022-02-012019http://repositorio.uricer.edu.br/handle/35974/398Pulmonary complications are frequently found in postoperative abdominal surgeries, and their occurrence may increase the length of stay, increase hospital costs and significantly contribute to mortality. Therefore, this study aimed to evaluate the capacity, strength and resistance of respiratory muscles in patients undergoing abdominal surgery. The present study is descriptive and quantitative cross-sectional exploratory. Maximum respiratory pressure (PRM) assessments were obtained by manovacuometry, peak expiratory flow (PEF) using the peak expiratory flow meter and the measurement of maximum voluntary ventilation (MVV) using a spirometer. Statistical analysis was performed using the SPSS 22.0 software (SPSS inc., Chicago, ILL, USA). The sample consisted of 20 patients, 13 females (65%) and 7 males (35%), with a mean age of 50.3 years (± 15.8). Regarding body mass index, females had an average of 25 (± 9.2) and males of 22 (± 8.8). There was a significant decrease in PRM, PEF, and MVV, and a strong correlation between variables, except for body mass index. It is concluded in the present study that patients undergoing abdominal surgery presented a significant decrease in respiratory muscle strength, function and performance, and these variables correlated strongly with each other.pt-BRFisioterapiaComplicações pós-operatóriasCapacidades pulmonaresVentilação voluntária máximaTrabalho de Conclusão de Curso