The objective of this study is to analyze the influence of physical activity under Pulmonary Function and Respiratory Muscular
Strength in sedentary, practicing basketball and swimmers, comparing predicted values with those performed. For this, the method used was a cross-sectional, prospective, comparative study, in which 15 wheelchair users were evaluated, five swimming practitioners, five basketball practitioners and five sedentary workers. The evaluation form, pulmonary function test (spirometry) and respiratory muscle strength test (manovacuometry) were used. The results of the research indicate that the sedentary group presented a statistically significant difference (p <0.05) between the predicted and realized values for:
Vital Capacity (CV), Forced Vital Capacity (FVC), and Inspiratory and Maximum Expiratory (Pimax and Pemax). In the swimming and basketball groups there was a significant difference (p <0.05) only for the PeMáx variable. From the study, it was concluded that sedentary individuals presented values below predicted, generating a greater number of variables with significant differences. Considering these results, it is argued that the practice of regular physical activity positively affects pulmonary function and respiratory muscle strength in wheelchair users.