Physical Activity Interventions in Pediatric Obesity

Pediatric obesity represents a complex interplay of genetic predisposition, environmental factors and behavioural patterns. Physical activity interventions aim to restore energy balance, promote healthy growth and reduce the risk of cardiometabolic complications. Programmes range from school-based curricula and after-school clubs to family-centred and community initiatives. Aerobic training, resistance exercises and combined or concurrent modalities have been deployed, often within multidisciplinary frameworks that integrate nutritional education and psychological support. High-intensity interval training and digital health platforms are emerging as scalable options for adolescents, while structured playground activities and active travel schemes facilitate engagement in younger children. Key challenges include variable adherence, cultural acceptability and resource limitations, particularly in low- and middle-income settings. Evidence demonstrates improvements in body composition, insulin sensitivity, lipid profiles and vascular function, alongside psychological benefits such as enhanced self-esteem and reduced anxiety. Sustainable impact relies on tailoring intensity and duration to age and developmental stage, fostering supportive family and school environments, and addressing broader determinants such as socio-economic constraints and built-environment features. As the prevalence of childhood obesity rises globally, physical activity interventions remain a cornerstone of prevention and treatment, with ongoing work to refine delivery models and maximise long-term behaviour change.

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Physical Activity Interventions in Pediatric Obesity publication trend

The graph below shows the total number of articles in physical activity interventions in pediatric obesity across all publications each year (not limited to Nature Index journals).

Technical terms

Body mass index (BMI) z-score: A standardised score expressing a child’s BMI relative to age- and sex-matched population norms.

Aerobic exercise: Physical activity of moderate intensity that relies primarily on oxygen-dependent energy pathways, such as running, cycling or swimming.

Resistance training: Exercise involving muscle contraction against external resistance, aimed at increasing strength and lean mass.

Adherence: The extent to which participants follow prescribed exercise frequency, intensity and duration.

Dropout: The proportion of participants who discontinue an intervention before its completion.

Cardiometabolic risk markers: Biological indicators, such as blood lipids, blood pressure and inflammatory proteins, that reflect risk of cardiovascular or metabolic disease.

References

1. Adherence and dropout in exercise‐based interventions in childhood obesity: A systematic review of randomized trials. Obesity Reviews (2024).
2. The effect of resistance training interventions on weight status in youth: a meta-analysis. Sports Medicine - Open (2018).
3. The Effect of a Multidisciplinary Lifestyle Intervention on Obesity Status, Body Composition, Physical Fitness, and Cardiometabolic Risk Markers in Children and Adolescents with Obesity. Nutrients (2019).
4. A 12-week after-school physical activity programme improves endothelial cell function in overweight and obese children: a randomised controlled study. BMC Pediatrics (2012).