Abstract. Objective: To identify critical periods in the variation in body composition during a school year and determine possible causes. Methods: A total of 363 ...
Critical periods in the variation in body composition in school children
Carlos Cristi-Montero1, Guilherme Bresciani2, Ana Alvarez3, Valentina Arriagada3, Angelo Beneventi3, Valentina Canepa3, Paula Espinoza3, Melisa Parraguez3, Carlos Toledo3, Consuelo Valencia3 and Fernando Rodriguez-Rodriguez1 Laboratorio de Motricidad Humana, Escuela de Educación Física. Pontificia Universidad Católica de Valparaíso. 2Facultad de Ciencias de la Salud, Universidad Autónoma de Chile. 3Carrera de Pedagogía en Educación Física, Universidad de Viña del Mar. Valparaíso. Chile. 1
Abstract Objective: 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
