Abstract
BACKGROUND: Post-COVID-19 patients may develop impaired lung function, with reduced lung capacities and volumes, respiratory muscle weakness, and physical inactivity. The aim of this study was to determine the effects of a detailed protocol based on breathing training with two specifically designed respiratory devices (SpiroTiger and KS Brief Stimulator) in post-COVID-19 individuals. METHODS: Sixteen young volunteers were randomly allocated into two groups: experimental (n = 8) and control (n = 8). The experimental group performed breathing training for 12 min two times a week for 9 months (from August 2023 to May 2024). Spirometric and baropodometric measurements were recorded every 3 months to evaluate the effects of the protocol. RESULTS: Data analysis showed significant improvements in the forced vital capacity, peak expiratory flow indices, and postural parameters in the experimental group. CONCLUSIONS: In conclusion, based on the study findings, the specific breathing training protocol developed for post-COVID-19 patients has proven to be effective and significantly impacted the quality of breathing functions and the postural system.