Where does the time go when children don't sleep? A randomized crossover study
Authors' conclusion
Children were not less physically active when mildly sleep deprived. Time gained from sleeping less was proportionally, rather than preferentially, reallocated to sedentary time and physical activity. These findings suggest that decreased physical activity seems unlikely to explain the association between short sleep and obesity in children.
Study context
- Population
- Children with normal sleep, 2018 through 202096 analysed
- Participants
- 105 children
- Comparison
- Sleep restriction vs sleep extension
- Primary endpoint
- 24-hour movement behaviors (time physically active and sedentary) measured with waist-worn actigraphy, in minutes and proportions
Methodological details1-week washout
- 1-week washout
Primary result
As reported in the abstract
Time use (24-h movement behaviours, waist-worn actigraphy) · 1 week per condition
Awake time gained when sleep restricted vs extended
≈49 minutes
Gained time reallocated to sedentary behaviour
28 minutes; 95% CI: 19-37
Gained time reallocated to physical activity
22 minutes; 95% CI: 14-30
Original publication
Where does the time go when children don't sleep? A randomized crossover study. Obesity (Silver Spring). Published 27 December 2022. doi:10.
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