Examinando por Autor "Zavala-Crichton, Juan Pablo"

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    Acute Effect of a Meditation-Oriented Physical Education Session on Stress Levels in School Children: A Randomized Controlled Study
    (Federacion Espanola de Docentes de Educacion Fisica, 2022) Yañez-Sepulveda, Rodrigo; De Zárate, Benjamín Ortiz; Tapia-Maldonado, Michel; González-Carreño, Jacob; Castro-Tapia, Lilian; Hurtado-Almonacid, Juan; Cortés-Roco, Guillermo; Zavala-Crichton, Juan Pablo; Olivares-Arancibia, Jorge
    The main objective of this research was to identify the acute effect of a meditation-oriented Physical Education session on stress levels in schoolchildren aged 8 to 12 years, 34 Chilean schoolchildren participated, who were randomly divided into an experimental group (n18) and a control group (n16). During a Physical Education class, the experimental group carried out a 15-minute mindfulness meditation session, while the control group took a survey of healthy habits in sedentary behavior. Before and after the intervention the level of stress was measured with the Children's Daily Stress Inventory Test (IECI). The Shapiro Wilk test was used to determine the normality of the data, the t-Student test for related samples and the t-Student test for independent samples were used for comparison between groups, with the Cohen d test the effect size was calculated. The level of significance was established at p<0.05. A decrease in the total level of daily stress was observed with a moderate effect in the experimental group (PRE: 7.22 - POST: 6.17; P=0.037; TE=0.40), in the control group no effects were observed in the stress level (p>0.05) after the intervention. It is concluded that a short meditation session carried out during Physical Education class can provide a decrease in stress levels in schoolchildren, an aspect to be taken into account when improving learning at school. © Copyright: Federación Española de Asociaciones de Docentes de Educación Física (FEADEF) ISSN: Edición impresa.
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    Anthropometric characteristics, body composition and somatotype in elite junior ITF tennis players from South America
    (Universidad de la Frontera, 2018-09) Yáñez-Sepúlveda, Rodrigo; Montiel-González, Sergio; Zavala-Crichton, Juan Pablo; Díaz-Barrientos, Samuel
    The objective of the study was to determine the anthropometric characteristics, body composition and somatotype in male elite junior tennis players from the International Tennis Federation (ITF). Twenty five players of 17.04 ± 1.05 years participated. The body composition was evaluated with the restricted profile of 25 variables proposed by Kerr based on the pent compartmental method, which divided the body into 5 components (tissues: muscle, adipose, bone, residual, and skin). The somatotype was identified with the Heath and Carter method. For the evaluation, the norms proposed by the International Society f