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J Behav Med. 2016 Jun;39(3):465-71. doi: 10.1007/s10865-015-9704-8. Epub 2015 Dec 10.

Successful weight loss maintenance associated with morning chronotype and better sleep quality.

Author information

1
Weight Control & Diabetes Research Center, Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University & The Miriam Hospital, 196 Richmond St., Providence, RI, 02903, USA. Kathryn_Ross@brown.edu.
2
Weight Control & Diabetes Research Center, Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University & The Miriam Hospital, 196 Richmond St., Providence, RI, 02903, USA.

Abstract

It is not known whether individuals successful at long term weight loss maintenance differ in chronotype (i.e., being a "morning" or "evening" person) or sleep habits compared to those who are overweight and obese. We compared Morningness-Eveningness Questionnaire (MEQ) and Pittsburgh Sleep Quality Index scores of 690 National Weight Control Registry (NWCR) members (73 % female, 93 % white, age = 51.7 ± 12.5, BMI = 26.4 ± 5.1) to 75 enrollees in two behavioral weight loss interventions (INT; 77 % female, 88 % white, age = 55.7 ± 10.4, BMI = 36.2 ± 4.7). Controlling for age, MEQ scores were higher in NWCR than INT, p = .004, such that more NWCR than INT were morning-types and fewer were evening types, p = .014. Further, NWCR participants reported better sleep quality, longer sleep duration, and shorter latency to sleep onset compared to INT, ps < .05, and fewer NWCR participants reported <6 or <7 h of sleep, ps < .01. Future studies should examine if these factors change as a result of weight loss or are predictors of weight outcome.

KEYWORDS:

Chronotype; Morningness/eveningness; Obesity; Sleep; Weight loss maintenance

PMID:
26660638
PMCID:
PMC4854772
DOI:
10.1007/s10865-015-9704-8
[Indexed for MEDLINE]
Free PMC Article

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