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Critical periods in the variation in body composition in school children [Periodos crÍticos en la variación de la composición corporal en niÑos en edad escolar]

dc.contributor.authorCristi-Montero C.
dc.contributor.authorBresciani G.
dc.contributor.authorAlvarez A.
dc.contributor.authorArriagada V.
dc.contributor.authorBeneventi A.
dc.contributor.authorCanepa V.
dc.contributor.authorEspinoza P.
dc.contributor.authorParraguez M.
dc.contributor.authorToledo C.
dc.contributor.authorValencia C.
dc.contributor.authorRodriguez-Rodriguez F.
dc.date.accessioned2020-09-02T22:16:04Z
dc.date.available2020-09-02T22:16:04Z
dc.date.issued2014
dc.identifier10.3305/nh.2014.30.4.7694
dc.identifier.citation30, 4, 782-786
dc.identifier.issn02121611
dc.identifier.urihttps://hdl.handle.net/20.500.12728/4183
dc.descriptionObjective: 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. © 2014, Grupo Aula Medica S.A. All rights reserved.
dc.language.isoen
dc.publisherGrupo Aula Medica S.A.
dc.subjectBody weight
dc.subjectCritical periods
dc.subjectFat percentage
dc.subjectObesity
dc.subjectPhysical activity
dc.subjectadolescent
dc.subjectbody composition
dc.subjectchild
dc.subjectfemale
dc.subjecthuman
dc.subjectleisure
dc.subjectmale
dc.subjecttime factor
dc.subjectAdolescent
dc.subjectBody Composition
dc.subjectChild
dc.subjectFemale
dc.subjectHolidays
dc.subjectHumans
dc.subjectMale
dc.subjectTime Factors
dc.titleCritical periods in the variation in body composition in school children [Periodos crÍticos en la variación de la composición corporal en niÑos en edad escolar]
dc.typeArticle


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