The global prevalence of childhood obesity has risen
dramatically and is considered a significant public health
problem. Since the 1970s, the prevalence of obesity has more
than tripled for children aged 6-11 years in the United States
[1]. In Korea, the incidence of obesity among children aged 10-18
years increased from 5.4% in 1998 to 11.3% in 2001, as observed
in the Korean National Health and Nutrition Examination