Change in sleep duration and visceral fat accumulation over 6 years in adults. (11th February 2014)

• Record Type: Journal Article
• Authors: Chaput, Jean‐Philippe; Bouchard, Claude; Tremblay, Angelo
• Is Part Of: Obesity. Volume 22:Number 5(2014:May)
• Page Start: E9
• Page End: E12
• Publication Date: 2014-02-11
• Subjects: Obesity -- Periodicals; 616.398005
• DOI: 10.1002/oby.20701
• Languages: English
• ISSNs: 1930-7381

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="oby20701-sec-0001" sec-type="section"> <title>Objective</title> <p>To investigate the relationship between change in sleep duration and long‐term visceral adiposity change in adults.</p> </sec> <sec id="oby20701-sec-0002" sec-type="section"> <title>Methods</title> <p>A longitudinal analysis was conducted on 293 participants, aged 18‐65 years, followed for a mean of 6.0 ± 0.9 years. At baseline and year 6, sleep duration was self‐reported and visceral adipose tissue (VAT) assessed using computed tomography. Multivariable modeling was used to examine the association between change in sleep duration and VAT change over the 6‐year time period, with adjustments made for age, sex, change in BMI, personal characteristics, energy intake, and physical activity.</p> </sec> <sec id="oby20701-sec-0003" sec-type="section"> <title>Results</title> <p>Participants gained an average of 19.2 ± 37.3 cm<sup>2</sup> in VAT over the follow‐up period. Baseline short (≤6 h/day) and long (≥9 h/day) sleepers gained significantly more VAT than those reporting sleeping 7‐8 hours a night (23.4 and 20.2 cm<sup>2</sup> vs. 14.1 cm<sup>2</sup>, respectively, <italic>P</italic> < 0.05). Using continuous data, we observed that the change in sleep duration was not associated with VAT change. However, a change in sleep duration from ≤6 h/day to 7‐8 h/day was associated with 6 cm<sup>2</sup> fewer VAT gain after multivariable adjustment (<italic>P</italic> < 0.05).</p> </sec> <sec id="oby20701-sec-0004" sec-type="section"> <title>Conclusions</title> <p>A spontaneous change in sleep duration (from a short to an adequate duration) is independently and inversely associated with long‐term VAT accumulation.</p> </sec> </abstract>