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Published on: December 6, 2016
Effects of a time-restricted eating intervention on sleep and body composition in adults with obstructive sleep
Bianca A de Sousa1, Maria Luísa A Ferreira1, Maysa Helena de Aguiar Toloni1
1Faculty of Health Sciences (FCS), Department of Nutrition (DNU), Federal University of Lavras, Lavras, Minas Gerais, 37200-900, Brazil.
Objectives:
This study aimed to evaluate the effects of an 8-h Time-Restricted Eating (TRE) intervention over 12 weeks on weight loss, body composition, and sleep in adults with Obstructive Sleep Apnea (OSA).
Methods:
A randomized crossover clinical trial was conducted. Participants aged 30-65 years with a Body Mass Index (BMI) ≥30 kg/m2, diagnosed with OSA, of both sexes, with eating windows from 11 to 14 h were included. The participants were randomized into an 8-h TRE intervention (meals between 11 AM and 7 p.m.) or control group (eating window >10 h and nutritional guidance). Twelve participants completed the intervention. Measurements included body weight, height, waist and neck circumference, and body composition (bioelectrical impedance). Sleep parameters were assessed using a Biologix® portable sleep monitor and questionnaires.
Results:
The average age of the sample was 44.6 ± 7.84 years, 50% female. Adherence to the TRE intervention was 4.2 days per week. No significant effects of TRE were observed on body weight or anthropometric outcomes, body composition, or sleep parameters.
Conclusion:
The findings of this study suggest that a 12-week 8-h time-restricted eating intervention was not associated with reductions in body mass or body composition and sleep parameters evaluated by a portable monitoring device. Brazilian Registry of Clinical Trials (REBEC) - protocol RBR-9rh56ph.
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