Physical activity among Norwegian preschoolers varies by sex, age, and season

Ada Kristine Ofrim Nilsen1,2, Sigmund Alfred Anderssen1,2, Einar Ylvisaaker1

  • 1Department of Sport, Food and Natural Sciences, Faculty of Education, Arts and Sports, Western Norway University of Applied Sciences, Sogndal, Norway.

Insights

Preschool boys are more active than girls, with physical activity (PA) increasing with age and varying by season. These factors interact, highlighting the complexity of children's PA levels.

Area of Science:

  • Pediatric Health
  • Public Health Promotion
  • Child Development

Background:

  • Understanding physical activity (PA) in preschoolers is crucial for public health.
  • Previous research has not fully explored PA variations by sex, age, and season in this demographic.

Purpose of the Study:

  • To investigate physical activity levels in a large sample of Norwegian preschoolers.
  • To explore how PA varies and develops based on sex, age, and season.

Main Methods:

  • 1154 Norwegian preschoolers (mean age 4.7 years, 52% boys) wore accelerometers for 14 days.
  • 330 children had repeated PA measurements across seasons.
  • Linear mixed models analyzed PA (total, light, moderate, vigorous, moderate-to-vigorous, sedentary) by sex, age, and season.

Main Results:

  • Boys exhibited higher PA levels (72 min/day MVPA) than girls (59 min/day MVPA).
  • PA increased with age and was higher in spring/summer than autumn/winter (P < 0.001).
  • Boys showed a greater age-related PA increase than girls, influenced by seasonal MVPA.

Conclusions:

  • Boys are consistently more active and less sedentary than girls.
  • Preschoolers' PA increases with age, with seasonal variations favoring spring/summer.
  • Interactions between sex, age, and season significantly influence preschoolers' physical activity.
Abstract

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