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Sleep Timing, Eating and Activity Measurement Study
Sponsor: Children's Hospital Medical Center, Cincinnati
Summary
There is strong reason to believe that sleep promotion during adolescence could yield long-term health rewards; the investigators' data show that, when they get more sleep, Morning Larks have impressively reduced intake of overall calories and foods high in glycemic load that are linked to long-term health risk. Before that can be translated into major public health interventions, however, the field needs to understand why similar changes in sleep had no effect, or even an adverse effect, on adolescent Night Owls. This experimental study will clarify why there have been such discrepant effects across Morning Larks and Night Owls, with the goal of more broadly harnessing the promise of improved sleep in the prevention of obesity and long-term morbidity.
Official title: Impact of Well-Timed vs. Mis-timed Sleep Extension on Adolescents' Dietary Intake
Key Details
Gender
All
Age Range
14 Years - 18 Years
Study Type
INTERVENTIONAL
Enrollment
190
Start Date
2021-07-16
Completion Date
2025-07-26
Last Updated
2026-09-22
Healthy Volunteers
Yes
Interventions
Sleep Extension (Early)
Following a periods of time meant to stabilize their sleep patterns and to induce mild sleep restriction, participants will be randomly assigned to one of two sleep extension conditions, both of which are designed to allow recommended sleep duration. The Early Sleep Extension condition does so by keeping rise time the same as the sleep restriction period, but extending sleep by going to bed earlier. This produces a sleep extension that is aligned for Morning Larks and misaligned for Night Owls.
Sleep Extension (Late)
Following a periods of time meant to stabilize their sleep patterns and to induce mild sleep restriction, participants will be randomly assigned to one of two sleep extension conditions, both of which are designed to allow recommended sleep duration. The Early Sleep Extension condition does so by keeping bedtime the same as the sleep restriction period, but extending sleep by rising later. This produces a sleep extension that is misaligned for Morning Larks and aligned for Night Owls.
Locations (1)
Cincinnati Children's Hospital Medical Center
Cincinnati, Ohio, United States