Weekday and weekend sedentary time and physical activity in differentially active children

Area of Science:

• Pediatric Exercise Science
• Public Health
• Behavioral Science

Background:

• Understanding weekday-weekend variations in children's physical activity is crucial for public health strategies.
• Previous research indicates potential differences, but activity intensity and categorization by fitness levels require further investigation.

Purpose of the Study:

• To examine differences in sedentary time and physical activity across various intensities between weekdays and weekends in children.
• To investigate these differences among children categorized into distinct physical activity levels.

Main Methods:

• A cross-sectional observational study involving 810 English children aged 10-11 years.
• Seven-day accelerometer data were used to assess sedentary time and physical activity (light, moderate, vigorous, moderate-to-vigorous).
• Children were categorized into quartiles (Q1-Q4) based on sex-specific moderate-to-vigorous physical activity levels.

Main Results:

• The most active children (Q4) showed no significant differences in sedentary time or physical activity between weekdays and weekends.
• Less active children (Q1-Q3) exhibited lower physical activity and higher sedentary time on weekends compared to weekdays.
• Specific differences varied by sex, with boys and girls in lower quartiles showing reduced activity and increased sedentary time on weekends.

Conclusions:

• Highly active children maintain consistent physical activity and sedentary patterns throughout the week.
• Less active children experience a decline in physical activity and an increase in sedentary behavior during weekends.
• Intervention strategies targeting weekend physical activity may be most beneficial for less active children.