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Nutrición Hospitalaria

versión On-line ISSN 1699-5198versión impresa ISSN 0212-1611


VASQUEZ, Fabián et al. Longitudinal assessment of body composition by different methods as product of a integral intervention for treating obesity in Chilean children school. Nutr. Hosp. [online]. 2013, vol.28, n.1, pp.148-154. ISSN 1699-5198.

Introduction: In Chile, the main nutritional problem of children, is obesity. The alarming increase in childhood obesity, has generated an urgent need to develop prevention and treatment programs, unfortunately, the results have been disappointing because they have not achieved the expected impact on the nutritional status of the target population. For this it is necessary to use other strategies, such as incorporating exercise of muscle strength. Objective: To determine the impact of an integral intervention (exercise, nutritional education and psychological support) in the body composition of obese school children after the intervention and post-intervention. Methods: The sample consisted of 61 obese children (BMI > p 95) of both sex, between 8 and 13 years old, who participated in an integral intervention for treating childhood obesity in the short term (3 months) and medium term (12 months). Body composition was assessed by isotope dilution, plethysmography, radiographic absorptiometry and four-compartment model of Fuller. Results: There was a significant increase over time in FFM (kg) by 4C in both sex, GC (%) by isotope dilution in boys was reduced in the post-intervention, while in girls decreased significantly over time and FFM (kg) by isotope dilution significantly increased in both sex. According to the magnitude and direction of change in time, there was only significant difference by sex in FFM (%) by isotope dilution, the increase was significantly higher in boys a result of the intervention (p = 0,000). Conclusions: An intervention that includes programmed exercise improves body composition. However, its effect is reversed in the medium term if training ceases. This reaffirms the need for sustainability of interventions over time.

Palabras clave : Intervention; Physical exercise; Muscle strength; Body composition.

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