Modelo explicativo del efecto de la talla y grasa corporal en el peso de escolares entre 9 y 17 anÌos de edad / Explanatory model of the effect of size and body fat in the weight of school children between 9 to 17 years
VozAndes
;
24(1-2): 9-18, 2013.
Article
in Spanish
| LILACS
| ID: biblio-1015173
RESUMEN
La obesidad ha aumentado en ninÌos y joÌvenes. La importancia de medir la composicioÌn corporal es reconocida. Sin embargo, la talla y la proporcioÌn de grasa podriÌan explicar la variabilidad del peso y dependeriÌan de la edad y sexo de la persona. Objetivo Analizar la relacioÌn de la talla y grasa corporal con el peso de los estudiantes. DisenÌo Estudio observacional, transversal y analiÌtico. Lugar y sujetos Se empleoÌ la base de datos del estudio "Quito municipal schools cohort study Baseline results", desarrollado en 6964 escolares de 9 a 17 anÌos. Mediciones principales Se consideroÌ las variables edad, sexo, peso, talla y grasa corporal. La condicioÌn antropomeÌtrica fue definida seguÌn criterios de la Organi- zacioÌn Mundial de Salud. Para evaluar la correlacioÌn entre el peso en funcioÌn de la talla y proporcioÌn de grasa corporal se aplicoÌ un modelo de regresioÌn lineal muÌltiple. Resultados La correlacioÌn entre el peso, talla y grasa corporal fue significativa, tanto en mujeres (r=0.93) como en varones (r=0.92). El coeficiente de determinacioÌn disminuyoÌ con la edad y la aportacioÌn parcial de la grasa al peso fue mayor hasta los 11 anÌos en mujeres y 14 anÌos en varones. En los varones con exceso de peso la aportacioÌn de la grasa para explicar el peso fue menor que la talla y en las mujeres la aporta- cioÌn de la grasa corporal y la talla fue igual en todas las edades. ConclusioÌn La proporcioÌn de grasa deberiÌa tenerse en cuenta siempre que se de- termine el exceso de peso y se determine y analice el sobrepeso y la obesidad, porque es el uÌnico de los dos teÌrminos que se puede modificar
ABSTRACT
Obesity has increased in children and youth. The importance of measuring body composition is known. However, the size and the proportion of fat could explain weight variability and depend on the age and sex of the person. Objective To analyze the relationship between size and amount of body fat and the weight of the students. Design Cross sectional study Subjects and setting The database from the study "Quito municipal schools cohort study Baseline results" was used. This study was developed in 6964 students aged 9 to 17 years. Main measurements Age, sex, weight, height and body fat were considered in the analysis. Anthropometric status was defined according to criteria of the World Health Organization. To evaluate the correlation between the weight depending on the size and proportion of body fat a multiple linear regression was applied. Results The correlation between weight, height and body fat was significant both in women (r=0.93) and in men (r=0.92). The coefficient of determi- nation decreased with age and the partial contribution of fat to weight was higher until the age of 11 in women and 14 years in men. In males with overweight the contribution of fat to explain the weight was lower than the height and in women the contribution of body fat and the height was the same in all ages. Conclusion The proportion of fat should be taken into account when excess weight is determined and when overweight and obesity are analyzed because it is the only one of the two terms that can be modified. Abstract Explanatory model of the effect of size and body fat in the weight of school children between 9 to 17 years 
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Body Weight
/
Overweight
/
Body Fat Distribution
/
Obesity
Type of study:
Observational study
/
Prognostic study
Limits:
Humans
Language:
Spanish
Journal:
VozAndes
Journal subject:
Medicine
Year:
2013
Type:
Article
Affiliation country:
Ecuador
/
Spain
Institution/Affiliation country:
Pontificia Universidad CatoÌlica del Ecuador/EC
/
Universidad Autónoma de Barcelona/ES
/
Universidad Central del Ecuador/EC
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