Physical activity patterns measured by accelerometry in 6- to 10-yr-old children

Area of Science:

• Pediatric Health
• Exercise Science
• Child Development

Background:

• Physical activity (PA) is crucial for children's health and development.
• Understanding PA patterns across different times and days is vital for targeted interventions.
• Age and gender influence children's physical activity levels.

Purpose of the Study:

• To analyze differences in objectively measured physical activity (PA) between weekdays and weekend days in children aged 6-10 years.
• To investigate PA variations across different time blocks (school, after-school, evening) in relation to age and gender.
• To inform preventive strategies for increasing PA in children.

Main Methods:

• Cross-sectional analysis of 1,293 children (653 girls, 640 boys) aged 6-10 years.
• Objective PA measurement using accelerometry over one week.
• Time blocks defined as school time (8:00-13:30), after-school care (13:30-16:00), and evening (16:00-21:00).

Main Results:

• Significant differences in daily PA were observed across age groups (6-10 years) in both genders (P < 0.001).
• Weekend PA was significantly lower than weekday PA for all children (girls: 782 vs. 681 CPM; boys: 853 vs. 729 CPM).
• Highest PA occurred during weekday after-school care (girls: 879 CPM; boys: 990 CPM).
• Gender differences in PA were most pronounced during school and after-school care times.

Conclusions:

• A decline in physical activity may begin as early as age 6.
• The school environment is a key setting for addressing PA disparities, especially for girls.
• Interventions targeting weekend PA are crucial for both boys and girls to increase overall activity levels.