Patterns of daily physical activity during school days in children and adolescents

Abstract

The purpose of this study was to examine the weekday patterns of moderate-to-vigorous physical activity (MVPA) in school children and adolescents and determine if there are periods of the day that are representative of their typical MVPA. The sample comprised 84 subjects (boys, n = 30; girls, n = 54), age 8-15 years old. Daily totals for the physical activity variables were calculated by summing the values from 13 hr of physical activity (PA) measurements (9:00-22:00), with 60-min time blocks comprising each day. The MVPA data values were categorized in four daily periods: morning (9:00-11:59), noon (12:00-14:59), late afternoon (15:00-17.59), and evening (18:00-21.59). Our data show that boys participated significantly more in MVPA than girls. Despite no clear patterns or differences among sex being found, girls showed higher percent of time engaged in MVPA during the morning and early afternoon periods (sum of two periods 51.0%), while boys' percent of time engaged in MVPA is higher at late afternoon and evening periods (sum of two periods 53.8%). The principal components analyses showed four distinct components that accounted for 67% of the variance, as follows: school hours (component 1); lunchtime and outside-school activities (component 2); morning time before school period (component 4); and period before bedtime (component 3) appear as distinct periods of the day. In conclusion, the present study shows that boys engaged more in MVPA than girls. Girls tend to be more active during school periods, while boys are more active after school.

School and weekend physical activity of 15-16 year-old Czech, Slovak and Polish adolescents

“…Gavarry et al (2003) found that girls and boys were more inactive during their free days than during school days, which is in compliance with our fi ndings. Girls, ac cording to Mota, Santos, Guerra, Ribeiro, and Duarte (2003), have a tendency to be more active during school time, while boys are more active after school. The decline of PA at weekends in girls and boys actually supports the role of school in the enhancement of daily PA on school days (Pate et al, 2006).…”

Where does the time go? Patterns of physical activity in adolescent youth

“…Mota et al 14 carried out a similar analysis with young people aged 8 -15 years. Again using PCA, they identified four distinct time components that accounted for 67% of the variance in school day MVPA; 1) school hours (10am -12, and 2 -7pm); 2) lunchtime and outside-school activities (12 -2pm, and 7 -9pm);…”

Recommendations for Prevention of Childhood Obesity

“…116 Boys and girls differ substantially in their physical activity preferences 117,118 and in their patterns of physical activity involvement. [119][120][121] Participation in organized sports has declined in Australia and Sweden but seems to have remained stable in the United Kingdom. 106 Individual and environmental factors do not influence all children equally.…”