Physical activity and metabolic syndrome in Korean children

H-R Hong, S U Kim, H-S Kang
International Journal of Sports Medicine 2009, 30 (9): 677-83
Little is known about whether lifestyle factors such as dietary intake, physical activity (PA), and cardio/respiratory fitness (CRF) are associated with metabolic risk factors in Korean children. The purpose of the study was to investigate the relationships among those lifestyle-related modifiable factors and the clustering of metabolic risk factors in young Korean children. In a cross-sectional study, we studied 246 Korean children (mean+/-SD; age: 12.6+/-0.5 years, BMI: 19.9+/-3.2 kg/m (2)) who were recruited from local elementary schools. In the total study population, physical activity and CRF were inversely associated with metabolic risk factors including body fatness, blood pressures, blood lipids and glucose. Daily caloric intake and proportion of carbohydrates were positively associated with BMI and percent body fat only. Multivariate regression analyses showed that physical activity was independently and inversely associated with the clustering of metabolic risk factors, even after adjustments for age, sex, sexual maturation, dietary intake, and CRF. Overall, the current findings of the study suggest that physical activity rather than CRF and/or dietary intake is an independent predictor for the clustering of metabolic risk factors in Korean children.

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