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Revista chilena de nutrición

versión On-line ISSN 0717-7518

Resumen

MORENO Z, Lorena; CONCHA L, Fernando  y  KAIN B, Juliana. Movement intensity of children during physical education classes in public schools: results according to the type of professional that teaches the class. Rev. chil. nutr. [online]. 2012, vol.39, n.4, pp.123-128. ISSN 0717-7518.  http://dx.doi.org/10.4067/S0717-75182012000400003.

Physical education (PE) classes should contribute to increase daily energy expenditure, including moderate/ vigorous activities (MVA) during 50% ofthe class. We determined the % time in MVA during one PE class, identifying ifthere were differences according to the type of teacher in charge and the nutritional status of the children. The sample included 549 children 6 to 8 years old attending 8 public schools. Anthropometry and time in MVA were determined (usingpedometers). 15.8% and 12.9% of the PE class corresponded to MVA in boys and girls respectively, with no difference by nutritional status. If the class was taught by a PE teacher, 16.9% and 14.2% corresponded to MVA; if it was taught by the classroom teacher, it was 13.7% and 10.8% in boys and girls respectively. There were differences by sex and type of teacher, but not by nutritional status. The proportion of MVA during PE classes is much lower than the recommendation of 50% of the duration of the class. The curriculum should incorporate significantly more moderate/vigorous activities and if possible classes should be taught by PE teachers.

Palabras clave : schoolchildren; physical education; nutritional status; movement intensity.

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