The effect of 4-h versus 6-h time restricted feeding on sleep quality, duration, insomnia severity and obstructive sleep apnea in adults with obesity
Cienfuegos S, Gabel K, Kalam F, Ezpeleta M, Pavlou V, Lin S, Wiseman E, Varady KA
Nutrition and health · 45 citations
How it was studied
- Design
- Randomized controlled trial (indexed by PubMed)
- Studied in
- People
- Main outcome
- Health markers and function
Who paid for it
- Funding
- Independent funding
- Government
- National Cancer Institute
- Government
- National Institute of Diabetes and Digestive and Kidney Diseases
- Government
- NIH
- Government
- NIDDK NIH HHS
- Government
- NCI NIH HHS
- Grants
- National Cancer Institute (#T32CA193193); National Institute of Diabetes and Digestive and Kidney Diseases (R01DK119783)
Based on 5 listed funder(s).
Publication
- Published
- 2021-03-24 · Nutr Health · vol. 28 · issue 1 · pp. 5–11
- Publisher
- SAGE Publishing
- Cited
- 54 citations · more than 93% of similar papers · 3.2× the field average
- Impact
- Top 10% most cited in its field
- References
- 25 works
- Access
- Open access (repository copy)
- Research areas
- Dietary Effects on Health · Sleep and related disorders · Circadian rhythm and melatonin
- Keywords
- Insomnia, Bedtime, Obstructive sleep apnea, Medicine, Obesity, Meal, Internal medicine, Sleep (system call), Sleep onset, Sleep onset latency, Apnea, Pittsburgh Sleep Quality Index, Sleep apnea, Endocrinology, Sleep quality, Psychiatry
- MeSH
- humans, sleep apnea, obstructive, sleep initiation and maintenance disorders, obesity, fasting, adult, sleep quality
8 authors
From US
- Sofia CienfuegosUniversity of Illinois Chicago
- Kelsey GabelUniversity of Illinois Chicago
- Faiza KalamUniversity of Illinois Chicago
- Mark EzpeletaUniversity of Illinois Chicago
- Vicky PavlouUniversity of Illinois Chicago
- Shuhao LinUniversity of Illinois Chicago
Abstract
Background
Time restricted feeding (TRF) involves deliberately restricting the times during which energy is ingested. Preliminary findings suggest that 8-10-h TRF improves sleep. However, the effects of shorter TRF windows (4-6 h) on sleep, remain unknown.
Aims
This study compared the effects of 4-h versus 6-h TRF on sleep quality, duration, insomnia severity and the risk of obstructive sleep apnea.
Methods
Adults with obesity (n = 49) were randomized into one of three groups: 4-h TRF (eating only between 3 and 7 p.m.), 6-h TRF (eating only between 1 and 7 p.m.), or a control group (no meal timing restrictions) for 8 weeks.
Results
After 8 weeks, body weight decreased (p < 0.001) similarly by 4-h TRF (-3.9 ± 0.4 kg) and 6-h TRF (-3.4 ± 0.4 kg), versus controls. Sleep quality, measured by the Pittsburgh Sleep Quality Index (PSQI), did not change by 4-h TRF (baseline: 5.9 ± 0.7; week 8: 4.8 ± 0.6) or 6-h TRF (baseline: 6.4 ± 0.8; week 8: 5.3 ± 0.9), versus controls. Wake time, bedtime, sleep duration and sleep onset latency also remained unchanged. Insomnia severity did not change by 4-h TRF (baseline: 4.4 ± 1.0; week 8: 4.7 ± 0.9) or 6-h TRF (baseline: 8.3 ± 1.2; week 8: 5.5 ± 1.1), versus controls. Percent of participants reporting obstructive sleep apnea symptoms did not change by 4-h TRF (baseline: 44%; week 8: 25%) or 6-h TRF (baseline: 47%; week 8: 20%), versus controls.
Conclusion
These findings suggest that 4- and 6-h TRF have no effect on sleep quality, duration, insomnia severity, or the risk of obstructive sleep apnea.
Abstract via Europe PMC. Copyright remains with the authors or publisher.
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