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Objective Analysis of Preschoolers' Physical Activity Patterns During Free Playtime
Cory J Greever1, John Sirard, Sofiya Alhassan
1Dept of Kinesiology, University of Massachusetts, Amherst.
Insights
Preschoolers
Area of Science:
- Child Development
- Physical Activity Research
- Pediatric Health
Background:
- Understanding physical activity (PA) patterns in preschoolers is crucial for promoting healthy habits.
- Outdoor free play is a key context for PA in early childhood.
- Temporal dynamics of PA during playtime are not well-characterized.
Purpose of the Study:
- To analyze the temporal patterns of physical activity (PA) in preschoolers during outdoor free play.
- To investigate how activity levels change throughout a typical playtime session.
- To identify age-related differences in PA patterns during playtime.
Main Methods:
- Utilized accelerometer data from 326 children (aged 4.0 ± 0.8 years) across 3 preschool PA intervention studies.
- Collected data in 15-second epochs, classifying activity into sedentary, light, or moderate-to-vigorous physical activity (MVPA).
- Employed orthogonal polynomial comparisons to analyze patterns of change during playtime.
Main Results:
- Observed a U-shaped pattern for sedentary time and an inverted U-shaped pattern for moderate-to-vigorous physical activity (MVPA) across all ages.
- Three-year-olds demonstrated a greater maintenance of decreased sedentary time and increased MVPA compared to 4- and 5-year-olds.
- Activity levels generally increased in the first 10-15 minutes and decreased in the final 10-15 minutes of playtime.
Conclusions:
- Preschool children's physical activity (PA) levels exhibit distinct temporal patterns during outdoor free play.
- Younger preschoolers (3-year-olds) sustain higher activity levels for longer durations compared to older preschoolers.
- Findings highlight the importance of playtime duration and age in shaping children's physical activity engagement.
Background:
The purpose of this study was to examine the temporal patterns of preschoolers' physical activity (PA) levels during a typical outdoor free playtime.
Methods:
Baseline playtime accelerometer counts (4.3 ± 0.8 days) from 3 preschool PA intervention studies were used (n = 326 children, age = 4.0 ± 0.8 years). Data were collected using 15-second epochs and classified into sedentary, light, or moderate-to-vigorous physical activity (MVPA). Patterns of change during playtime were analyzed using orthogonal polynomial comparisons.
Results:
For all ages, there was a U-shaped pattern of change for the percent of epochs classified as sedentary [F(1, 323) = 47.12, P < .001) and an inverted U-shaped pattern of change for the percent of epochs classified as MVPA [F(1,323) = 32.15, P < .001]. Age-stratified analyses indicated that the 3-year-olds maintained the decrease in sedentary time [F(2,323) = 6.408, P = .002] and the increase in MVPA [F(2,323) = 3.2, P = .04] to a greater extent than the 4- and 5-year-olds.
Conclusions:
Preschool children gradually became more active during the first 10 to 15 minutes of outdoor gross motor playtime and less active over the final 10 to 15 minutes of playtime. During the second half of playtime 3-year-olds maintained these changes to a greater degree than 4- and 5-year-olds.
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