Influence of Perceived Stressful Homework on Lifestyle Habits and Subsequently on Adiposity : a QUALITY Study
Background: Perceived stressful homework was shown to be associated with poor adiposity profile in children aged 8-10 years old, and this was mediated by a decrease in moderate-to-vigorous physical activity (MVPA) and an increase in screen time.   Objectives: 1) Explore if any dietary factors could be potential mediator, 2) Observe the associations and mediators present at 10-12 years of age, and 3) Examine from a longitudinal perspective these associations (from 8-10 years old to 10-12 years old).   Methods: The following information on the QUALITY cohort children were extracted: homework duration, stress level and screen time, sleep and MVPA duration, dietary factors, and adiposity profile. Process Macro for SPSS was used for the statistical analysis.   Main Results: Perceived stressful homework was positively associated with adiposity at 8-10 years old only in all children, particularly in girls. High-sugar drink was a partial mediator between perceived stressful homework and trunk fat percentage in children at 8-10 years old. Screen time mediated the relationship between homework and body mass index of children at 10-12 years old. Sleep duration change mediated the association between perceived stressful homework duration and trunk fat percentage changes in children since ages 8-10 years old, especially in girls.   Discussion: As children grow and perform a lot of homework, screen habits changes. In prevention aspect of paediatric obesity, screen time and sleep duration are the two major habits to monitor.
Alimentation Homework Screen Sleep Physical Activity Diet High-Sugar Drink Children Obesity