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Interactive multimedia for promoting physical activity (IMPACT) in children.

Michael I Goran1, Kim Reynolds

  • 1Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA. goran@usc.edu

Obesity Research
|May 18, 2005
PubMed
Summary

An interactive multimedia curriculum effectively reduced obesity in fourth-grade girls and improved physical activity psychosocial outcomes. This computer-based intervention shows promise for childhood obesity prevention and promoting healthy behaviors.

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Area of Science:

  • Pediatric Health
  • Educational Technology
  • Behavioral Science

Background:

  • Childhood obesity is a significant public health concern.
  • Interactive multimedia interventions offer novel approaches to health promotion.
  • Fourth-grade children are a key demographic for early intervention.

Purpose of the Study:

  • To develop and evaluate a computer-based interactive multimedia curriculum.
  • To promote physical activity and reduce obesity in fourth-grade children.

Main Methods:

  • A randomized controlled trial involving 209 fourth-grade students.
  • An 8-week multimedia intervention (CD-ROM) versus control educational CD-ROMs.
  • Measures included anthropometrics, accelerometry-based physical activity, and psychosocial questionnaires.

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Main Results:

  • Significant obesity reduction observed in girls, but not boys.
  • No significant changes in overall physical activity levels (accelerometry).
  • Positive trends in psychosocial factors: self-efficacy, social norms, and outcome expectancies.

Conclusions:

  • The interactive multimedia curriculum positively impacted obesity indices in girls.
  • Subtle improvements in physical activity patterns and psychosocial outcomes were noted.
  • This intervention demonstrates potential for improving health behaviors in preadolescent children.