Critical periods in the variation in body composition in school children

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dc.contributor.authorCristi-Montero, Carlos
dc.contributor.authorBresciani, Guilherme
dc.contributor.authorAlvarez, Ana
dc.contributor.authorArriagada, Valentina
dc.contributor.authorBeneventi, Angelo
dc.contributor.authorCanepa, Valentina
dc.contributor.authorEspinoza, Paula
dc.contributor.authorParraguez, Melisa
dc.contributor.authorToledo, Carlos
dc.contributor.authorValencia, Consuelo
dc.contributor.authorRodríguez R., Fernando
dc.date.accessioned2020-06-09T00:05:47Z
dc.date.available2020-06-09T00:05:47Z
dc.date.issued2014
dc.description.abstractObjective: To identify critical periods in the variation in body composition during a school year and determine possible causes. Methods: A total of 363 boys and girls aged between 10 and 14 years participated in the study. Before and after the Winter Holidays (WIH) and National Holidays (NAH) (July and September, respectively), measurements were taken of body weight, body fat percentage, waist perimeter, time spent on physical activity and hours of sleep in order to determine the variations. The normality of the data was confirmed and the means were compared with an alpha significance level of p<0.05. Results: The school children increased in weight by 600 g and 510 g in the NAH and WIH, respectively (p<0.0001), and their body fat percentage was significantly increased during both periods (0.51%); however, the waist perimeter measurement saw no significant changes. It can also be seen that in NAH physical activity dropped by an important amount (-41 min, p<0.0001), though this did not occur in WIH. A significant increase in hours of sleep was also seen during the two holiday periods (~1 to 2 hours/day). Conclusion: It is concluded that both NAH and WIH can be considered critical periods due to the sharp increase in body weight and body fat percentage in the school children, where a possible cause is the reduction in time spent on physical activity.es_ES
dc.identifier.issn1699-5198
dc.identifier.other10.3305/nh.2014.30.4.7694
dc.identifier.urihttps://hdl.handle.net/20.500.12536/471
dc.language.isoenes_ES
dc.sourceNutrición Hospitalaria
dc.subjectObesityes_ES
dc.subjectBody weightes_ES
dc.subjectFat percentagees_ES
dc.subjectCritical periodses_ES
dc.subjectPhysical activityes_ES
dc.titleCritical periods in the variation in body composition in school childrenes_ES
dc.typeArtículo de revistaes_ES
uvm.carreraPedagogía en Educación Físicaes_ES
uvm.escuelaEscuela de Educaciónes_ES
uvm.indexWoSes_ES
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