Dados do Trabalho

Título

EATING WINDOW PERIOD OF OBSTRUCTIVE SLEEP PATIENTS

Introdução

A prolonged eating window has been associated with a higher risk of obesity and worse metabolic outcomes.

Objetivo

The aim of this study was to identify the relationship between the eating window, anthropometry, body composition and sleep quality of obstructive sleep apnoea patients.

Métodos

This is a cross-sectional study with data obtained from previous studies. It included 72 individuals diagnosed with obstructive sleep apnoea, overweight and aged between 30 and 65. All studies were approved by the Research Ethics Committee of the Federal University of Lavras (protocol 4.383.855) and Federal University of São Paulo (protocol 1637/11). The participants' dietary window was obtained through 3 non-consecutive dietary recalls, including one weekend day. The anthropometric measurements obtained were weight, height and waist circumference, and body composition (by bioelectrical bioimpedance). Sleep measurements were obtained using the Pittsburgh Sleep Quality Index (PSQI) and the midpoint of sleep was obtained by averaging the time of going to sleep and the time of waking up. Analysis of variance was applied to assess the differences between the groups based on eating duration (long: >13 hours, short: <11 hours or standard: 11-13 hours), p<0.05 was used for significance differences.

Resultados

The average age was 42.2± 9.77 years, with 79.17% of males and a BMI of 34.8 ± 4.38 Kg/m². Of the 72 individuals, 25 (34.72%) had a long eating window, 38 (52.78%) had a standard eating window and only 9 (12.5%) had a short eating window. No differences were found in anthropometric and body composition parameters between the groups. The standard eating window group had the higher sleep duration (7.5 ± 1.34hs) higher than long (6.12±1hs; p=0.01) and short eating window groups (5.2h±1.39; p=0.001). A difference was also found in the midpoint of sleep between the standard (2.53±1.14hs) and short food window group (3.67±1.44; p=0.024). There were not any significant differences between eating window groups and body weight, anthropometric and body composition measurements.

Conclusões

In individuals diagnosed with obstructive sleep apnoea and obesity, the eating window was related to total sleep time and the midpoint of sleep, but not with anthropometric and body composition variables.

Palavras -chave

food window; obstructive sleep apnoea; sleep; obesity; body composition