Dean W Beebe1, Amy Zhou2, Joseph Rausch3, Olivia Noe4, Stacey L Simon5. 1. Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; University of Cincinnati College of Medicine, Cincinnati, Ohio. Electronic address: dean.beebe@cchmc.org. 2. University of Cincinnati College of Medicine, Cincinnati, Ohio. 3. Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; University of Cincinnati College of Medicine, Cincinnati, Ohio. 4. Boston College, Boston, Massachusetts. 5. Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colorado.
Abstract
PURPOSE: Adolescent sleep restriction is common and can lead to overeating. Here, we test whether lengthening sleep via early bedtimes affects dietary intake differently for adolescents accustomed to a later sleep phase ("night owls") versus an earlier sleep phase ("morning larks"). METHODS: Using a randomized cross-over design, 67 adolescents changed bedtimes to create five-night periods of sleep restriction (6.5 hours in bed) versus healthy sleep (10 hours in bed). Caloric intake was measured via validated interviews. Phase preference was based on participants' premanipulation sleep. RESULTS: Actigraphy verified that the manipulation altered sleep regardless of phase preference. Phase preference moderated the effect of the manipulation on cumulative caloric intake (p = .01-.03). Night owls showed little effect, but morning larks reduced their evening intake during healthy sleep. CONCLUSIONS: An "early to bed" approach confers little dietary benefit for night owls but may have a protective effect for adolescents who gravitate toward earlier bedtimes.
RCT Entities:
PURPOSE: Adolescent sleep restriction is common and can lead to overeating. Here, we test whether lengthening sleep via early bedtimes affects dietary intake differently for adolescents accustomed to a later sleep phase ("night owls") versus an earlier sleep phase ("morning larks"). METHODS: Using a randomized cross-over design, 67 adolescents changed bedtimes to create five-night periods of sleep restriction (6.5 hours in bed) versus healthy sleep (10 hours in bed). Caloric intake was measured via validated interviews. Phase preference was based on participants' premanipulation sleep. RESULTS: Actigraphy verified that the manipulation altered sleep regardless of phase preference. Phase preference moderated the effect of the manipulation on cumulative caloric intake (p = .01-.03). Night owls showed little effect, but morning larks reduced their evening intake during healthy sleep. CONCLUSIONS: An "early to bed" approach confers little dietary benefit for night owls but may have a protective effect for adolescents who gravitate toward earlier bedtimes.
Authors: Dean W Beebe; Stacey Simon; Suzanne Summer; Stephanie Hemmer; Daniel Strotman; Lawrence M Dolan Journal: Sleep Date: 2013-06-01 Impact factor: 5.849
Authors: Hanne K J Gonnissen; Femke Rutters; Claire Mazuy; Eveline A P Martens; Tanja C Adam; Margriet S Westerterp-Plantenga Journal: Am J Clin Nutr Date: 2012-08-22 Impact factor: 7.045
Authors: Suzana Almoosawi; Snieguole Vingeliene; Frederic Gachon; Trudy Voortman; Luigi Palla; Jonathan D Johnston; Rob Martinus Van Dam; Christian Darimont; Leonidas G Karagounis Journal: Adv Nutr Date: 2019-01-01 Impact factor: 8.701