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Updated: Feb 17, 2026
Physical Activity Measurement in Children Accepting Table Tennis Training
Published on: July 27, 2022
A comparative study found that a seven-year school-based exercise programme increased physical activity levels in
Felix Cronholm1, Björn E Rosengren1, Caroline Karlsson1
1Clinical and Molecular Osteoporosis Research Unit, Department of Orthopedics and Clinical Sciences, Lund University, Skåne University Hospital, Malmö, Sweden.
Aim:
This study assessed whether a Swedish school-based exercise intervention programme could increase total physical activity.
Methods:
We followed up 228 children who started school in 1998-2000 seven years later, when they had reached a mean age of 14.8. The 152 children (59% boys) at the intervention school did 200 minutes of physical education per week during that period, and the 76 children (50% boys) in the three control schools did the standard 60 minutes. Questionnaires assessed the durations of total and leisure-time physical activity and screen-time activity at baseline and after five and seven years.
Results:
Physical activity and screen-time activity were similar between the two groups before the study started. The intervention group then achieved higher durations of total physical activity than the controls (p < 0.001) and these levels remained in the sex-specific evaluations. There were no differences between the groups in the durations of leisure-time activity (p 0.08-0.77) or screen-time activity (p 0.31-0.91).
Conclusion:
A school-based exercise intervention programme increased the total duration of physical activity in both sexes without any compensatory increase in screen-time activity. The findings contradict the activity-stat theory, which stated that the duration of physical activity in children is constant.
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