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Instituto Nacional de Salud Pública

2011, Número 3

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salud publica mex 2011; 53 (3)


El nivel de actividad física disminuye en niños mexicanos al ingresar a la escuela primaria

Jáuregui A, Villalpando S, Rangel-Baltazar E, Castro-Hernández J, Lara-Zamudio Y, Méndez-Gómez-Humarán I

Idioma: Ingles.
Referencias bibliográficas: 32
Paginas: 228-236
Archivo PDF: 239.97 Kb.


RESUMEN

Objetivo. Comparar los patrones de actividad física (AF) en una cohorte de niños mexicanos en el jardín de niños, primer y segundo grado de primaria. Material y métodos. Se midió anualmente la AF (acelerometría triaxial de cinco días completos) en 217 niños (123 niñas y 94 niños) de 5 a 6 años de edad. Se calculó la AF moderada/vigorosa (AFMV) entre semana y de fin de semana, dentro y fuera del horario escolar. Se realizaron comparaciones mediante modelos lineales generalizados multinivel longitudinales. Resultados. La AFMV entre semana fue 22 (p=0.06) y 37 min/d (p‹0.01) menor, y la AFMV durante el horario escolar disminuyó 37 (-5.0 min/h) y 40% (-5.5 min/h) (p‹0.001), en 1° y 2° de primaria, respectivamente, comparado con el jardín de niños. No se encontraron diferencias en la AFMV de fin de semana o fuera del horario escolar entre los grados escolares (p›0.05). Conclusiones. La AFMV disminuyó de manera significativa del jardín de niños a 2° de primaria en parte debido a una reducción de AFMV durante las actividades escolares. Es necesaria la promoción de intervenciones enfocadas a la modificación del ambiente escolar.


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