Physical activity decline may begin well before adolescence
A review placed the earliest reported decline around age 7, with the largest drop around age 9. It also examined contributing factors and school programs.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The review suggests that declining activity can start during childhood, before the teenage years. It identified motivation, confidence in being active, screen time and school workload as relevant factors. School programs combining several approaches were highlighted as helpful, but the abstract gives no effect sizes or direct comparisons to establish how much they helped.
The abstract does not give participant totals, study-quality results, amounts of activity lost or intervention effect sizes. It also leaves study follow-up periods unclear, limiting comparisons across ages and programs.
Timing was a central question
The review examined when activity begins to decline, what factors accompany that decline, and which interventions might slow it. Reported ages describe patterns in the reviewed evidence, rather than a timetable that applies to every child.
Programs combined several features
Program features highlighted by the authors included teaching that supports student choice, attention to both activity and sedentary behavior, and involvement from several stakeholder groups. The abstract does not isolate which feature mattered most.
The original publication
From active play to sedentary lifestyles: understanding the decline in physical activity from childhood through adolescence-a systematic review.
Habyarimana JD, Tugirumukiza E, Sun H et al.
Front Public Health · 2025
- PubMed ID
- 41283017
- Record checked
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