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Physical Activity Measurement in Children Accepting Table Tennis Training

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Published on: July 27, 2022

5-year changes in afterschool physical activity and sedentary behavior.

Lauren Arundell¹, Nicola D Ridgers, Jenny Veitch

¹Centre for Physical Activity and Nutrition Research (C-PAN), Deakin University, Melbourne, Australia.

American Journal of Preventive Medicine

|May 21, 2013

Summary

The afterschool period becomes more crucial for children's physical activity as they age, especially approaching adolescence. Sedentary time increases, while moderate-to-vigorous activity declines during this critical time.

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Published on: February 25, 2016

Area of Science:

Pediatric health
Behavioral science
Public health

Background:

The afterschool period is a key opportunity for promoting physical activity in children.
Limited understanding exists regarding the evolving importance of this period as children mature.

Purpose of the Study:

To analyze changes in physical activity and sedentary time during the afterschool hours for children aged 5-6 and 10-12 years over 3 and 5 years.
To determine the afterschool period's contribution to daily physical activity and sedentary behavior longitudinally.

Main Methods:

Utilized accelerometer data from 2053 children across two longitudinal studies in Melbourne, Australia.
Analyzed light (LPA), moderate (MPA), and vigorous physical activity (VPA), alongside sedentary time, using age-adjusted cut-points.
Employed multilevel analyses to assess changes and contributions of afterschool activity over time.

Main Results:

Afterschool moderate-to-vigorous physical activity (MPA/VPA) significantly decreased in both age groups, particularly in younger children.
Sedentary time in the afterschool period increased for both younger and older children.
The afterschool period's contribution to overall MPA/VPA increased in older children but decreased in younger children over five years.

Conclusions:

The significance of the afterschool period for children's physical activity engagement grows with age.
Interventions targeting afterschool physical activity may need to be age-specific, considering developmental changes into adolescence.