Examinando por Autor "Zapata-Lamana, Rafael"
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Ítem An active break program (ACTIVA-MENTE) at elementary schools in Chile: study protocol for a pilot cluster randomized controlled trial(Frontiers Media SA, 2023) Reyes-Amigo, Tomás; Ibarra-Mora, Jessica; Aguilar-Farías, Nicolás; Gómez-Álvarez, Nicolás; Carrasco-Beltrán, Hernaldo; Zapata-Lamana, Rafael; Yañez-Sepulveda, Rodrigo; Cortés, Guillermo; Rolle-Cáceres, Grissel; Bezerra, AndréaBackground: Physical inactivity is prevalent in childhood. Schools can be an ideal context to promote the regular practice of physical activity since children spend there a large part of the day. In this sense, an emerging and current trend is active breaks at school. This article presents a study protocol that seeks to assess the feasibility and effectiveness of an intervention with active breaks (ACTIVA-MENTE program) in a school context on physical activity, on-task classroom behavior, and the physical activity enjoyment in schoolchildren. Methods: The protocol includes children aged 10 to 11 years. Two groups will be randomized (intervention and control groups). The intervention group will use the active break program, ACTIVA-MENTE, which consists of the application of a 4-min, 30-s video with moderate to vigorous-intensity physical activity. These breaks will be taken 6 times a day in the classes for 6 weeks. The total physical activity will be measured with accelerometers (Actigraph wGT3X-BT), the on-task behavior through the Direct Behavior Rating Scale and the level of enjoyment through the Physical Activity Enjoyment Scale. Discussion: Previous research reported that active breaks have positive results in physical activity levels. This study will be one of the few to design active breaks through videos without depending on the presence of a physical education teacher and it can also provide new findings on the effectiveness of an active break’s structure (e.g., types of exercises and intensity) on the indicated outcomes. Expected results: It is expected that the ACTIVA-MENTE program can be a suitable program for school settings, potentially increasing physical activity levels, and the commitment to the task, as well as be a pleasant moment for the students. Clinical trial registration: Clinicaltrials.gov, identifier NCT05403996. Copyright © 2024 Reyes-Amigo, Ibarra-Mora, Aguilar-Farías, Gómez-Álvarez, Carrasco-Beltrán, Zapata-Lamana, Hurtado-Almonácid, Páez-Herrera, Yañez-Sepulveda, Cortés, Rolle-Cáceres and Bezerra.Ítem Diferencias de composición corporal y condición física en educadoras de párvulo con normopeso, sobrepeso y obesidad : estudio transversal(Sociedad Chilena de Nutrición Bromatología y Toxilógica, 2016-12) Zapata-Lamana, Rafael; Monsalves-Alvarez, Matías; Cigarroa Cuevas, Igor; Castro-Sepúlveda, Mauricio; Salazar Rodríguez, Gabriela; Abad-Colil, FelipeObjetivo: Describir el índice de masa corporal (IMC), composición corporal, la tasa metabólica basal, condición física y su relación en educadoras de párvulos chilenas. Sujetos y Métodos: 46 educadoras (edad 39,5±8,6) de la provincia de Bio-Bio (Chile) se pesaron, midieron y se obtuvo su IMC. Se midió el porcentaje de masa grasa, magra, ósea, tasa meta bólica basal, fuerza explosiva y capacidad cardiorrespiratoria. Resultados: Las educadoras tuvieron un IMC promedio de sobrepeso (26,7±3,5) y un elevado porcentaje de grasa (35,1±5,9) de acuerdo a referencias nacionales. El 58,7% de ellas presentó sobrepeso y obesidad moderada. Cuando se comparó por IMC, las educadoras con obesidad presentaron en promedio un mayor porcentaje de masa grasa (P =,000), menor de masa magra (P =,000), demoraron más tiempo en terminar el UKK test (P =,035) y tuvieron un menor vo2max (P =,001) en comparación a las educadoras con normopeso. El IMC se asoció negativamente a los test de rendimiento físico. Conclusión: Las maestras con sobrepeso/obesidad presentaron más masa grasa, menos masa muscular y peores resultados en las pruebas de condición física. Condición preocupante pensando en su importante rol modelando hábitos de vida saludables en los prescolares.Ítem Effects of a Six-Week International Tour on the Physical Performance and Body Composition of Young Chilean Tennis Players(MDPI, 2023-01) Luna-Villouta, Pablo; Paredes-Arias, Marcelo; Flores-Rivera, Carol; Hernández-Mosqueira, Claudio; Vásquez-Gómez, Jaime; Matus-Castillo, Carlos; Zapata-Lamana, Rafael; Faúndez-Casanova, César; Jofré Hermosilla, Néstor; Villar-Cavieres, Natalia; Vargas-Vitoria, RodrigoIn tennis, it is common for young male tennis players to spend several weeks away from their local training camps during the competition season, which could affect their performance. The purpose of the study was to analyze the effects of a six-week international tour on physical performance and body composition in young Chilean tennis players. Twenty-four men between the ages of 14 and 16 participated in this research. In body composition and anthropometric measurement, body weight, height, skinfolds, and perimeters were measured. Body fat percentage (BFP) and skeletal muscle mass (SMM) were calculated. For physical performance, 5-m and 10-m sprints, modified agility test (MAT test), countermovement jump (CMJ), and medicine ball throw (MBT) were evaluated. Results show that, in body composition, BFP and SMM significantly decreased post-tour (p < 0.05; effect sizes ranging from 0.23 to 0.33, respectively). In physical performance, agility and 5-m and 10-m sprints significantly decreased (p < 0.05, effect sizes ranging from −0.63 to 1.10). We conclude that after a six-week international tour, BFP, SMM, agility, and speed (linear sprint) tend to decrease significantly, with a greater effect in the sprint tests. © 2023 by the authors.