Effect of a family-based intervention on electronic media use and body composition among boys aged 8--11 years: a pilot study.

This study measured the effect of a 20-week, family-centered electronic media intervention on electronic media use, body composition (dual-energy X-ray absorptiometry; DXA), physical activity and dietary behaviors in boys. Twenty-two boys were assigned and 21 were analyzed in an experimental or control group. Boys in the experimental group set electronic media use goals and used TV Allowance device and ENUFF software to reduce electronic media use.