Effect of inspirational muscle training in patients with obstructive sleep apnea

Introduction: Obstructive sleep apnea syndrome (OSAS) is common and is associated with serious consequences of cardiovascular diseases and quality of life. Objective: This study aim to compare the intervention with an inspiratory muscle training (IMT) in relation a SHAM in patients with obstructive sleep apnea (OSA). Methods: Clinical, controlled and randomized trial. Subjects will be submitted to analyses before and after period of 3 months to: polysomnography, maximal inspiratory pressure (MIP) measurement, Pittsburgh scale questionnaires for sleep quality assessment, Epworth scale for daytime sleepiness assessment, Short Form-36 for health quality of life assessment and Berlim questionnaire for assess the risk of obstructive sleep apnea. Intervention group will perform IMT with an initial load of 40% of the MIP, increasing 10% each week until achieve 60% of MIP, performed daily with 30 inspiratory exercises, for 12 weeks on the POWERbreathe® medic (POWERbreathe, UK). Statistical significance was P Results: With 53 subject selected (31 intervention group and 22 SHAM) there was a tendency to increase MIP (P Conclusion: Preliminaries data showed that IMT with POWERbreathe® medic can reduce daytime hypersonness signs, improve the quality of sleep impacting on apneia and hypopneia index of polysomnography and may become a new alternative treatment for patients with obstructive sleep apnea syndrome.