Examinando por Autor "Valdivia-Moral, Pedro"
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Ítem Activating Specific Handball’s Defensive Motor Behaviors in Young Female Players: A Non-Linear Approach(MDPI, 2023-03) Espoz-Lazo, Sebastián; Farías-Valenzuela, Claudio; Hinojosa-Torres, Claudio; Giakoni-Ramirez, Frano; Del Val-Martín, Pablo; Duclos-Bastías, Daniel; Valdivia-Moral, PedroTraditional models to train and teach young players in team sports assume that athletes learn as linear systems. However, an actual methodology called Non-Linear Pedagogy (NLP) accounts for the fact that the players and the team are complex dynamic systems. Experiences in handball under this methodology are scarce; due to this, an observational study has been conducted with a follow-up, idiographic and multidimensional design, in which 14 female school handball players belonging to four different local teams in Santiago, Chile (age = 15.55 + 0.51) agreed to participate in three special handball training sessions with the use of the NLP methodology where three different constraints were used. Descriptive analysis with the Chi-squared test showed a total of 252 observations where most of the variables were dependent on the constraints (p ≤ 0.001). Frequency showed that mainly “Defense in Line of progression” and “Proximal contact” were the most activated variables, followed by “Harassment” and “Deterrence” for all constraints. However, only constraint 2 highly activated two collective motor behaviors, while the rest only did it with individual motor behaviors. It is concluded that the constraints used in training seem to be effective in activating a group of defensive handball motor behaviors, specifically those that are basic for female school handball players. © 2023 by the authors.Ítem Effectiveness of teaching mini handball through non-linear pedagogy in different socioeconomic contexts: a pilot study(MDPI, 2022-10) Espoz-Lazo, Sebastián; Farías-Valenzuela, Claudio; Reyes-Contreras, Victor; Ferrero-Hernández, Paloma; Giakoni-Ramírez, Frano; Tapia-Zavala, Mauricio; Duclos-Bastías, Daniel; Valdivia-Moral, PedroMini handball is among the sports included as part of school physical education in Chile to improve children’s motor skills and to motivate their adherence to a healthy and active lifestyle in response to concerns about this country’s high level of childhood obesity. To this end, non-linear pedagogy (NLP) has been used to develop motor skills through mini handball in the school context. However, socioeconomic differences that influence the development of children’s motor skills have not been considered to determine whether the methodology applies to everyone. The aim of the present observational study is to describe and compare the effectiveness of the previously applied NLP methodology in two contrasting socioeconomic contexts to determine whether it helps to develop motor skills through mini handball in both school contexts. The Levine test was used to determine the homogeneity of the variances (p < 0.05), as the distribution of the data was not normal. The Kruskal–Wallis H statistical test was used to analyse within-group data. Additionally, the Mann–Whitney U test was applied for comparisons between groups. The results show significant improvements in the acquisition of the expected motor skills specific to mini handball. Additionally, a shortening of the gap was evidenced between the groups during the training process, with no significant differences at the end of the progression. Therefore, the investigated NLP is equally as effective for schoolchildren in two opposite socioeconomic contexts.Ítem Effects of a self-regulated training program on the repeated power in female college handball players: An intervention study(MDPI, 2021-11) Espoz-Lazo, Sebastián; Hinojosa-Torres, Claudio; Farías-Valenzuela, Claudio; Álvarez-Arangua, Sebastián; Ferrero-Hernández, Paloma; Valdivia-Moral, PedroSeveral resistance training programs using conventional methodologies have been implemented with the purpose of improving the ability to perform power actions in handball, especially during the competitive season. In contrast, methodologies based on a contemporary perspective, which considers the human being as a self-regulating biological entity, and designed specifically for female college players, are scarce. The aim of this research was to investigate the effects of an eight-week resistance training program, in which the athletes were able to control the loads according to their self-perceived effort and rest on their repeated shuttle sprint and jump ability. The sample was composed of 16 female players of a handball team from the faculty of physics and mathematics sciences of a Chilean university. The RSSJA test was used to evaluate players’ conditions pre-and post-training program, and the self-perceived effort scale called OMNI-RES was used for the predic-tion and control of loads. Results indicated that, after the application of an eight-week resistance training program, significant improvements p ≤ 0.05 on the jump height (pre: 1836.4 W; average post: 2088.9 W) and running speed (average pre: 3.2 m/s; average post: 4.0 m/s) were obtained, as well as a significant reduction in the loss of power and speed between each set of the applied test. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.Ítem Pedagogical, methodological and didactic bases applied to teaching handball: A literary review (2017-2022)(2023) Espoz-Lazo, Sebastián; Hinojosa-Torres, Claudio; Farías-Valenzuela, Claudio; Giakoni-Ramírez, Frano; del Val Martín, Pablo; Valdivia-Moral, PedroPedagogy, methodology, and didactics are fundamental in the development of handball because they promote the integral formation of individuals through multi-variable practices that are effective for the acquisition of technical-tactical skills. However, most studies on handball focus on performance, injury prevention, and match analysis. Therefore, the aim of this work is to identify, consolidate, analyze, and describe the methodological, pedagogical, and didactic strategies used in the training of handball. A search was carried out in WoS following the PRISMA guidelines, including articles from 2017 to 2022 in English, Spanish, and Portuguese, including only research in social and educational sciences. Articles examining the effectiveness of teaching and learning in handball and technical and tactical training methods such as methodological designs were selected, excluding other types of documents. Of the 19 selected documents, most are published in English and are carried out mainly in Brazil and Spain. These are divided into three categories: training processes, evaluation, and use of methodological instruments. The results show significant differences in the methods used. It is concluded that research on the methodology, didactics, and pedagogy applied to the teaching and training of handball is little explored. Most of the reviewed studies have been carried out in Brazil and Spain using the handball elite as research subjects, suggesting that there are other populations that could benefit from methodological, didactic, and pedagogical alternatives adapted to their contexts and realities. © Copyright 2023:Ítem Percepción de igualdad y discriminación en Educación Física en estudiantes de Secundaria(Universidad de Murcia, 2024-05) León Reyes, Borys Bismark; Galeano-Rojas, Dilan; Agulló-Hernández, Ana; Farias-Valenzuela, Claudio; del Val Martín, Pablo; Valdivia-Moral, PedroEl propósito de este trabajo fue valorar la percepción de igualdad de trato y discriminación en estudiantes de secundaria y examinar la valoración sobre los distintos factores metodológicos que influyen en la igualdad de trato y discriminación en EF. La muestra estuvo compuesta por 706 estudiantes (375 chicos y 331 chicas) con una edad media de 13.05 años (DE= .93). El instrumento de recogida de datos fue el Cuestionario de Percepción de Igualdad y Discriminación en EF y el análisis se realizó utilizando laprueba de normalidad Kolmogorov-Smirnov y la prueba de comparación de medias U de Mann-Whitney. Los resultados demuestran que existen diferencias significativas en la percepción de igualdad de trato con valores medios más altos en las chicas y en la percepción de discriminación con mayores puntajes en los chicos. A su vez, en los factores metodológicos relacionados con el lenguaje sexista y el feedback se presentan diferencias por sexo que corroboran la mayor percepción de discriminación en los chicosy de igualdad en las chicas. En conclusión, las formas de interacción utilizadas por el profesor tienen gran influencia sobre las percepciones del alumnado con relación a los estereotipos de género en el contexto de la EF.Ítem Primary Validation of the Submandibular Skinfold as an Anthropometric Measurement of Cardiometabolic Risk in People with Intellectual Disabilities(2023-02) Ferrero-Hernández, Paloma; Farías-Valenzuela, Claudio; Ferrari, Gerson; Álvarez-Arangua, , Sebastián; Villalobos-Flores, Hans; Valdivia-Moral, PedroThe accumulation of body fat is an important cardiometabolic risk factor; however, there is no consensus about which measure is more reliable for the assessment of cardiometabolic risk in people with intellectual disabilities. The aim of the present study was to primarily validate the submandibular skinfold as an anthropometric measurement of cardiometabolic risk in children, adolescents, and adults with intellectual disabilities, using a cross-sectional study made up of 131 people (67.2% men) with mild and moderate intellectual disability. The cardiometabolic risk indicators used were: body mass index (kg/m2), neck circumference (cm), waist circumference (cm), calf circumference (cm) and waist-to-height ratio. Moderate correlations were demonstrated between the submandibular skinfold measure and the anthropometric measurements analyzed in the three age categories, showing the highest correlation (r = 0.70) between the submandibular skinfold and BMI in the adolescent group and waist-to-height ratio in adults. The implementation of the submandibular skinfold measurement is suggested as an easy, fast, and minimally invasive anthropometric measurement as part of the physical and nutritional evaluation for the assessment of cardiometabolic risk in people with intellectual disabilities. © 2023 by the authors.