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A Study on the Relationship Between Physical Activity, Sedentary Behavior, and Sleep Duration in Preschool Children

Zhenya Chang1,2, Wei Lei3

  • 1College of Physical Education and Health, East China Normal University, Shanghai, China.

Frontiers in Public Health
|April 26, 2021
PubMed

Insights

Physical activity benefits daytime sleep in preschoolers, while sedentary behavior, especially screen time, disrupts nighttime sleep. Educators should consider these distinct factors to improve children's sleep duration.

Area of Science:

  • Pediatric Sleep Science
  • Behavioral Pediatrics
  • Child Development

Background:

  • Preschool sleep duration is crucial for development.
  • Understanding the impact of physical activity (PA) and sedentary behavior (SB) on sleep is vital.

Purpose of the Study:

  • To investigate the distinct roles of PA and SB in preschool children's daytime and nocturnal sleep.
  • To identify specific types of SB that may affect sleep duration.

Main Methods:

  • Accelerometer-based 24-hour activity monitoring in 458 preschoolers.
  • Assessment of light physical activity (LPA), moderate-to-vigorous physical activity (MVPA), and various sedentary behaviors (SB).
  • Statistical analysis using chi-square and Cochran-Mantel-Haenszel tests.

Main Results:

  • PA positively influences daytime sleep duration (DSP), acting as a protective factor.
  • SB negatively impacts nocturnal sleep duration (NSP), posing a risk factor.
  • Screen-based SB (e.g., screen viewing, video games) is linked to shorter NSP, while quiet learning SB shows no significant correlation.

Conclusions:

  • PA and SB have differential effects on preschool sleep patterns.
  • Screen time is a significant risk factor for reduced nighttime sleep.
  • Gender and socioeconomic status modulate the PA-sleep and SB-sleep associations, requiring tailored interventions.

Keywords:
accelerometerchildhealthmovement behaviorsleep

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