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ation OSF Registration numberDOI 10.17605/OSF.IO/MKVDB. In the early treatment of critical patients, tracheotomy is often performed to improve ventilation. Clinical practices usually start respiratory training after the artificial airway is removed. It is still controversial whether respiratory training during tube occlusion has effects on patients' ventilation potential and tube occlusion time. Therefore, this study used Meta-analysis to evaluate the effects of respiratory training on patients' ventilation potential and tube occlusion ti