If you want your kids to slim down, a residential summer weight-loss camp might be the answer you're looking for. A new study in Pediatrics found that such camps can significantly improve children's weight, body mass index (BMI), physical fitness and blood pressure.

Researchers say the camps are effective because they get children out of the social environment that keeps them fat. Obese children struggle with their body's awkwardness in running, jumping and playing, which causes them to withdraw from these physical activities and make unhealthy lifestyle choices. This can be reversed when obese children are placed together to focus on losing weight and improving physical fitness.

"Weight loss is like beating addiction, you have to redirect the social environment to be successful," said Nadim Kanafani, M.D., assistant professor of pediatrics at Saint Louis University School of Medicine. "When a child can interact with others struggling with the same problem it helps sustain their weight-loss effort, and they are more likely to improve both physically and psychologically."
The study tracked obese 10- to 18-year old adolescents who attended a weight-loss camp. They participated in physical activities and group educational sessions covering nutrition, physical fitness and self-esteem. During their stay, the kids ate three balanced meals and two snacks per day prepared under the supervision of a registered dietician.

The results showed an average weight loss of more than eight pounds and average reduction in BMI score of three points. Additionally, participants' blood pressure dropped significantly and fitness levels, as measured by a one-mile run, improved markedly.

The weight-loss camp in the study used a number of proven techniques to achieve modification of dietary habits, increase physical activity and provide social support for participants. These methods resulted in health benefits as well as significant increases in self-esteem.

"When kids support one another good things happen," said Kanafani. "These peer-supported groups spark positive changes in motivation, eating behavior and body image."

Citation: Huelsing et al., 'Camp Jump Start: Effects of a Residential Summer Weight-Loss Camp for Older Children and Adolescents', Pediatrics, April 2010, 125(4), e884-e890; doi:10.1542/peds.2009-1007