Qualidade do sono e tolerância aoesforço em portadores de apneia obstrutiva do sono

Abstract

Introduction: Sleep is a natural and recurring state, in which important neurobiological processes take place. Poor quality of sleep is directly associated with worse health indicators. Sleep quality can be measured objectively and subjectively by methods such as polysomnography, which is the gold standard, or tests and questionnaires as the Sleep Quality Index in Pittsburgh (PSQI). Objective: To correlate the quality of sleep with exercise tolerance in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS). Methods: The study included 63 subjects (57 women and 6 men) aged 51.7 ± 6.6 years, with body mass index (BMI) 28.2 ± 5.0 kg/m2,apnea/hypopnea index (AHI) 7.3±10:50 events/hour, assessed by polysomnography. To assess the quality of sleep, participants responded the PSQI instrument and were submitted to the exercise tolerance test through the 6-minute walk test (6MWT). Results: There was no correlation between the PSQI and the 6MWT (Rs = -0.103620, p = 0.419), and between the 6MWT and the AHI (R = -0, 000984, p = 0.9939). According to the results of this work, we suggest that the quality of sleep and the severity of OSAHS did not affect the exercise tolerance of individuals with OSAHS. Conclusion: Studies with a larger sample, taking into account the stratification by severity of OSAHS and using more accurate methods of functional capacity evaluation should be conducted, so that more comprehensive results can be obtained.