Less screen time and more physical activity is associated with more stable sleep patterns among Icelandic adolescents.

ABSTRACT:

Objectives

Emerging evidence suggests that inconsistent sleep may affect physical and psychological health. Thus, it is important to identify modifiable determinants of sleep variability. Screen time and physical activity are both thought to affect sleep, but studies of their relationship to sleep variability using objective measures are lacking. We examined cross-sectional associations between these variables in mid-teen adolescents using objectively measured sleep and activity.

Methods

Wrist-worn accelerometers were used to measure one week of sleep and activity in 315 tenth grade students (mean age 15.8y) from six Reykjavík compulsory schools. Participants reported their daily hours of screen time. Regression analysis was used to explore associations of screen time and ph

SUBMITTER: Hrafnkelsdottir SM 

PROVIDER: S-EPMC7575609 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature