Jean-Philippe Chaput
Healthy Active Living and Obesity Research Group, Children’s Hospital of Eastern Ontario Research Institute,
401 Smyth Road, Ottawa, Ontario
Canada
Research Article
Later Bedtime is Associated with Greater Daily Energy Intake and Screen Time in Obese Adolescents Independent of Sleep Duration
Author(s): Kristi B Adamo, Shanna Wilson, Kevin Belanger and Jean-Philippe ChaputKristi B Adamo, Shanna Wilson, Kevin Belanger and Jean-Philippe Chaput
Objective: To examine if sleep timing (combination of bedtime and wake up time) is associated with energy intake and physical activity/sedentary behaviour in obese adolescents.
Methods: Participants included in this cross-sectional examination were 26 (13 females) obese volunteers (BMI ≥ 95th percentile) with a mean age of 13.6 ± 0.5 years and valid data on self-reported sleep, food intake (dietary record), physical activity and sedentary time (accelerometer), screen time (self-reported), and anthropometry (BMI). We categorized participants as “late sleepers” (midpoint of sleep >3:30 a.m., n=13) and participants as “normal sleepers” (midpoint of sleep ≤ 2:30 a.m., n=13).
Results: As expected, wake-up time and bedtime were different between sleep timing groups (p<.. View More»
