BackgroundKinesio taping® (KT) could facilitate respiratory muscle contraction, improving breathing. Therefore, this study aimed to analyze the immediate effects of KT application on thoracoabdominal mobility, vital capacity, and respiratory muscle strength of healthy young individuals. MethodsThis clinical trial included 19 healthy individuals, measuring their maximum inspiratory and expiratory pressure, vital capacity, and thoracoabdominal mobility using cirtometry. Participants were evaluated, and KT was applied below the xiphoid process; then, they were reassessed 15 min after the application. ResultsThe thoracoabdominal mobility did not significantly change the axillar (84.2 ± 6.6 cm vs 83.6 ± 6.1 cm; p = 0.116), xiphoid process (74.2 ± 8.8 cm vs 74.2 ± 8.63 cm; p = 0.805), and umbilical (73.7 ± 8.1 cm vs 74.2 ± 8.35 cm; p = 0.344) circumferences. Additionally, the vital capacity (3.8 ± 1.0 L vs 3.5 ± 1.3 L; p = 0.097), the maximal inspiratory pressure (−85.3 ± 31.7 cmH2O vs −79.5 ± 34.7 cmH2O; p = 0.265), and maximal expiratory pressure (63.9 ± 31.8 cmH2O vs 59.5 ± 36.1 cmH2O; p = 0.277) were not significantly different. ConclusionsKT showed no immediate effect on thoracoabdominal mobility, vital capacity, and respiratory muscle strength of healthy young adults. Future studies should investigate the effects of KT applied for a longer time (i.e., long-term effects). Furthermore, individuals with respiratory diseases could be evaluated, especially those presenting dysfunction in the rib cage morphology.