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Family-based interventions to increase physical activity in children: a systematic review, meta-analysis and realist
Insights
Family-based interventions effectively increase child physical activity (PA). This review synthesized evidence, offering recommendations for developing effective programs to promote PA in children through family engagement.
Area of Science:
- Public Health
- Pediatrics
- Behavioral Science
Background:
- Family-based interventions are a promising strategy for enhancing physical activity (PA) in children.
- Existing research requires synthesis to guide the development of effective PA programs for children.
Purpose of the Study:
- To conduct a dual meta-analysis and realist synthesis of family-based interventions aimed at increasing child PA.
- To identify effective strategies and contextual factors for promoting PA uptake and maintenance in children.
Main Methods:
- A systematic screening identified studies with participants aged 5-12 years, focusing on family engagement for PA increase.
- Duplicate data extraction and quality assessment were performed.
- Meta-analysis (19 studies) and realist synthesis (28 studies) were employed.
Main Results:
- Meta-analysis showed a significant small effect favoring interventions (SMD: 0.41; 95% CI 0.15-0.67), reduced to 0.29 (95% CI 0.14-0.45) after outlier removal.
- Realist synthesis highlighted the importance of family context (constraints, ethnicity, motivation) and strategies like goal-setting and reinforcement.
- Study quality varied, with only three receiving a 'strong' rating.
Conclusions:
- Evidence supports family-based interventions for increasing child PA.
- Recommendations are provided for policymakers and practitioners to develop evidence-based programs.
- Future research directions for optimizing child PA interventions are identified.
Objective:
Family-based interventions represent a potentially valuable route to increasing child physical activity (PA) in children. A dual meta-analysis and realist synthesis approach examined existing interventions to assist those developing programmes to encourage uptake and maintenance of PA in children.
Design:
Studies were screened for inclusion based on including participants aged 5-12 years, having a substantive aim of increasing PA by engaging the family and reporting on PA outcome. Duplicate data extraction and quality assessment were conducted. Meta-analysis was conducted in STATA. Realist synthesis included theory development and evidence mapping.
Results:
Forty-seven studies were included, of which three received a 'strong' quality rating, 21 'moderate' and 23 'weak'. The meta-analysis (19 studies) demonstrated a significant small effect in favour of the experimental group (standardized mean difference: 0.41; 95%CI 0.15-0.67). Sensitivity analysis, removing one outlier, reduced this to 0.29 (95%CI 0.14-0.45). Realist synthesis (28 studies) provided insight into intervention context (particularly, family constraints, ethnicity and parental motivation), and strategies to change PA (notably, goal-setting and reinforcement combined).
Conclusion:
This review provides key recommendations to inform policy makers and other practitioners in developing evidence-based interventions aimed at engaging the family to increase PA in children, and identifies avenues for future research.
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