Inspiratory muscle training on sleep quality after coronary artery bypass grafting
Original article - e235558 - Published 2024 June 13
DOI:
https://doi.org/10.33233/rbfex.v23i2.5558Keywords:
breathing exercises, sleep, cardiac surgeryAbstract
Objective: To evaluate the impact of Inspiratory Muscle Training (IMT) on sleep quality and pulmonary function after Myocardial Revascularization (MR). Methods: This is a randomized and controlled clinical trial. The participants were randomized to the inspiratory muscle training group (TG) or to the control group (CG). The CG performed the application of non-invasive ventilation, breathing exercises, kinesiotherapy, cycle ergometry and ambulation. The TG patients, in addition to the unit's standard protocol, were submitted to MIP assessment and started inspiratory muscle training with 40% of MIP. Pulmonary function (vital capacity and peak expiratory flow), ventilatory muscle strength (maximum inspiratory pressure and maximal expiratory pressure) and sleep quality (Pittsburgh Sleep Quality Index (PSQI) and Epworth Sleepiness Scale (EPS)) were evaluated before surgery and at hospital discharge. Results: 102 patients participated in this study, 54 people in the CG and 48 in the GT. The IMT had a more relevant impact on sleepiness at hospital discharge (95%CI 7 (6.39 to 7.61) in ESP and PSQI with 95%CI of 8 (7.61 to 8.39). Performed the inspiratory muscle training had a statistically significant response in the variables MIP (95%CI of 18(17.14 to 18.86)), MEP 95%CI of 6(5.37 to 6.63), CV with 95%CI of 2(1.61 to 2.39). On the other hand, PEF showed no difference between the groups with 95%CI of -5(-11.78 to 1.78). Conclusion: IMT was effective in reducing the loss of ventilatory muscle strength and sleep quality after CABG.
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