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 Brisk Walking Pace Is Associated with Better Cardiometabolic Health in Adults: Findings from the Chilean National Health Survey 2016–2017(Multidisciplinary Digital Publishing Institute (MDPI), 2023-04) Cigarroa, Igor; Bravo-Leal, Michelle; Petermann-Rocha, Fanny; Parra-Soto, Solange; Concha-Cisternas, Yeny; Matus-Castillo, Carlos; Vásquez-Gómez, Jaime; Zapata-Lamana, Rafael; Parra-Rizo, María Antonia; Álvarez, Cristian; Celis-Morales, CarlosBackground: Although the importance of walking for promoting a better cardiometabolic health is widely known (this includes both cardiovascular and metabolic/endocrine systems), there is little knowledge regarding its appropriate pace to provide adults with more cardiometabolic benefits. Aim: To analyze the associations between different walking pace categories and cardiometabolic health markers in the adult Chilean population. Methods: Cross-sectional study. A total of 5520 participants aged 15 to 90 years old from the Chilean National Health Survey (CNHS) 2016–2017 were included. Walking pace categories (slow, average, and brisk) were collected through self-reported methods. Glycaemia, glycosylated hemoglobin (HbA1c), gamma glutamyl transferase (GGT), vitamin D2, vitamin D3, systolic and diastolic blood pressure, and lipid profile (Total, HDL, LDL, VLDL, No HDL cholesterol and triglycerides) were determined using blood sample tests and measured with the standardized methods described in the CNHS 2016–2017. Results: People who had a brisk walking pace were associated with lower levels of glycaemia, HbA1c, GGT, systolic and diastolic blood pressure, and higher vitamin D3 levels compared with those with a slow walking pace. Moreover, people with a brisk walking pace had lower levels of VLDL cholesterol compared with those with a slow walking pace. However, after adjusting the model to include sociodemographic background, nutritional status, and lifestyle variables, the differences remained only for glycaemia, HbA1c and systolic blood pressure levels. Conclusions: A brisk walking pace was associated with better cardiometabolic health markers and lipid profile compared with a slow walking pace. © 2023 by the authors.Ítem Determinants of bone mass in young Chilean tennis players(Federacion Espanola de Docentes de Educacion Fisica, 2022) Luna-Villouta, Pablo Felipe; Paredes-Arias, Marcelo; Vásquez-Gómez, Jaime; Matus-Castillo, Carlos; Flores-Rivera, Carol; Zapata-Lamana, Rafael; Vitoria, Rodrigo VargasThe study aimed to analyze the relationship between muscle strength and body composition with bone mass in young Chilean tennis players. The study was observational, cross-sectional, with descriptive and analytical characteristics. The sample consisted of 51 young Chilean male tennis players (15.5±0.7 years old) who were selected non-probabilistically and for convenience. Anthropometric variables of weight, height, sitting height, skinfolds (triceps, anterior thigh, and medial leg), perimeters (arm, thigh, and leg), femur diameter, and forearm length were measured, along with hand grip strength (FPM), medicine ball throw (LBM), and countermovement jump (CMJ). Peak acceleration of growth velocity (APVC), skeletal muscle mass (MME), percentage of fat (GC), bone mineral density (DMO) and bone mineral content (CMO) were calculated. The results show that, in the body composition variables, MME is better associated with DMO (R2= 25% p<0.01) and CMO (R2= 20%; p<0.01). In the muscle strength tests, the CMJ presents the best relationship with the indicators of bone mass, DMO (R2= 14%; p<0.01) and CMO (R2= 19%; p<0.01). It is concluded that the MME is the indicator that shows the best relationship with DMO and CMO in the evaluated tennis players, while the CMJ is the muscle strength test that shows the best relationship with these indicators of bone mass. © Copyright: Federación Española de Asociaciones de Docentes de Educación Física (FEADEF)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.