Retos最新文献

{"title":"Electromiografía de superficie durante diferentes tipos de sentadillas. Una revisión narrativa (Surface electromyography during different types of squats. A narrative review)","authors":"Alejandro Arango Sarmiento, Diego Alejandro Calderón López, María Isabel Torres Cadavid, Juan Camilo Martínez Montoya, Andrés Ocampo García","doi":"10.47197/retos.v57.102670","DOIUrl":"https://doi.org/10.47197/retos.v57.102670","url":null,"abstract":"El objetivo de esta revisión narrativa es sintetizar la información recopilada en los últimos 10 años sobre la electromiografía de superficie durante la ejecución de la sentadilla tradicional, así como las estrategias que generen mayor activación en recto femoral, vasto lateral, vasto medial, glúteo mayor, y bíceps femoral. Métodos: En este estudio, se recopilaron artículos publicados entre 2013 y 2023 en inglés y español, provenientes de bases de datos como Pubmed, SportDiscus, Google Académico y Scielo. Estos artículos se enfocan en analizar la ejecución de la sentadilla y sus variaciones mediante el uso de electromiografía. Inicialmente, se encontraron un total de 340 artículos relacionados con el tema. Posterior al proceso de selección, involucrando criterios de inclusión y exclusión se obtuvieron 36 artículos en total. Resultados: Mientras los 36 artículos reportaban la sentadilla tradicional. Dentro de las estrategias destacadas para evaluar la activación muscular resalta la modificación de la carga, el tipo de resistencia, la profundidad, el número de repeticiones y fatiga, entre otras. Todas estas estrategias se aplicaron sobre la musculatura del recto femoral, vasto medial, vasto lateral, bíceps femoral y glúteo mayor. Conclusiones: Realizar mayor número de repeticiones y aumentar la carga levantada fueron las principales estrategias que generaron una mayor activación muscular. También la fase concéntrica y el sticking point fueron las fases de mayor activación. Hacen falta estudios que investiguen diferentes tipos de variaciones de sentadilla.\u0000Palabras clave: Electromiografía de superficie, EMGs, Electromiografía, Ejercicio,Sentadilla.     \u0000Abstract. The aim of this narrative review is to synthesize the information collected in the last 10 years on surface electromyography during the performance of traditional, Bulgarian, and unilateral squats, as well as strategies that generate greater activation in rectus femoris, vastus lateralis, vastus medialis, gluteus maximus, and biceps femoris. Methods: In this study, articles published between 2013 and 2023 in English and Spanish were collected from databases such as Pubmed, SportDiscus, Google Scholar, and Scielo. These articles focused on analyzing squat execution and its variations using electromyography. Initially, a total of 340 articles related to the topic were found. After the selection process, involving inclusion and exclusion criteria, a total of 36 articles were included. Results: Only five studies were related with the unilateral squat and only one article with the Bulgarian squat. Among the strategies highlighted to evaluate muscle activation, the modification of the load, type of resistance, depth, number of repetitions and fatigue, among others, stand out. All these strategies were applied on the rectus femoris, vastus medialis, vastus lateralis, biceps femoris and gluteus maximus muscles. Conclusions: Performing a greater number of repetitions and increasing the load lifted w","PeriodicalId":503742,"journal":{"name":"Retos","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141670246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Propuesta innovadora al sistema de selección de talentos de velocistas del atletismo cubano (Innovative proposal to the talent selection system for Cuban athletics sprinters)","authors":"Lianell Jova Elejalde, Magda Meza Anoceto","doi":"10.47197/retos.v58.105142","DOIUrl":"https://doi.org/10.47197/retos.v58.105142","url":null,"abstract":"El presente artículo posee el objetivo de establecer adecuaciones al sistema de selección de talentos en el área de velocidad para el ingreso de atletas a las Escuelas de Iniciación Deportiva Escolar (EIDE) en la categoría 12-13 años y su permanencia. Empleando el método del estudio de caso, de carácter exploratorio, se seleccionaron 31 profesionales del deporte como censo poblacional, con una experiencia de trabajo en el entrenamiento deportivo de más de 10 años con atletas con edades comprendidas entre los 12 y 15 años. Luego de ello, se realizó la determinación de los indicadores para el ingreso de atletas a las categorías de varones atletas entre los 12 y 13 años. Los resultados demostraron la importancia de la implementación de dimensiones adicionales que midan los caracteres físico motriz, biomecánicos, morfológicos, los correspondientes a los técnicos y los factores psicosociales. Se concluye que posee significativos aportes el perfeccionamiento de los procesos de selección de talento, dado que, es necesario concebir que los estímulos internos como externas hacia el atleta influencian en los resultados del proceso de selección, en otras palabras, es necesario evaluar al atleta desde un cúmulo de dimensiones que permitan la plena ejecución de su actividad deportiva.\u0000Palabras clave: Atletismo, selección de talentos, deporte, innovaciones deportivas.\u0000Abstract. This article aims to establish adjustments to the talent selection system for the speed category in the admission and retention of athletes aged 12-13 years at the Schools of Sports Initiation (EIDE). Employing an exploratory case study method, a population census of 31 sports professionals with over ten years of experience in training athletes aged 12-15 years was selected. Subsequently, the determination of indicators for admitting male athletes aged 12-13 was conducted. The findings highlighted the importance of incorporating additional dimensions that assess physical motor skills, biomechanical, morphological, technical, and psychosocial factors. The study concludes that improving talent selection processes is crucial, as both internal and external stimuli significantly influence the selection outcomes. Therefore, it is essential to evaluate athletes across multiple dimensions to ensure their comprehensive development and optimal performance in their sporting activities.\u0000Keywords: Athletics, talent selection, sport, sport innovations.","PeriodicalId":503742,"journal":{"name":"Retos","volume":" 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141674318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Exercise Intensity on Pancreatic and Liver GLUT-2 Expression in High Fructose-Fed Mice","authors":"Tantia Dewi Harianto, Bagas Trio Pamungkas, P. S. Rejeki, C. Wungu, Joni Susanto, Nabilah Izzatunnisa, Tri Hartini Yuliawati, S. Halim, A. Pranoto","doi":"10.47197/retos.v57.104464","DOIUrl":"https://doi.org/10.47197/retos.v57.104464","url":null,"abstract":"Excessive high fructose corn syrup (HFCS) leads to metabolic disorders characterized by decreased expression of pancreatic GLUT-2 and increased expression of liver GLUT-2. Exercise is reported to be a non-pharmacological therapy to improve metabolic disorders. This study aims to compare differences in exercise intensity to changes in pancreatic and liver GLUT-2 expression in mice induced by high fructose. A total of 36 male mice (Mus musculus), weighing 20-30 grams, 8-week-old, were randomly divided into 4 groups: C (Control; n = 9), G1 (light intensity swimming exercises; n = 9), G2 (moderate intensity swimming exercises; n = 9), and G3 (heavy intensity swimming exercises; n = 9). All groups were given 30% fructose solution orally (oral ad libitum) for 8 weeks. Meanwhile, swimming exercise was given out 3×/week for 8 weeks with three different intensities. Pancreatic and liver GLUT-2 expression was measured using immunohistochemistry (IHC) and the results of pancreatic and liver GLUT-2 expression measurements were evaluated using the Immunoreactive Score (IRS). The analysis of body weight using one-way ANOVA followed by Tukey's Honest Significant Difference (HSD) post hoc test indicates that G2 significantly reduces weight compared to C, G1, and G3 (p ≤ 0.05). Statistical analysis was done using the Kruskal-Wallis non-parametric test and followed up with the Mann-Whitney U Test with a significant level of 5%. The data showed that G2 significantly increased expression of pancreatic GLUT-2 and decreased expression of liver GLUT-2 compared to C, G1, and G3 (p ≤ 0.05). In conclusion, moderate-intensity exercise has the most optimal effect in increasing the expression of pancreatic GLUT-2 and decreasing the expression of liver GLUT-2.\u0000Keywords: Obesity, Insulin resistance, GLUT-2 expression, Exercise, High fructose","PeriodicalId":503742,"journal":{"name":"Retos","volume":" 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141674700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of injury risk levels in young footballers: A review of functional movement screens and static balance scores","authors":"Alexy Totti Fahrosi, Khoiril Anam, A. Setiowati, Sugiarto Sugiarto, Nugroho Susanto, Tiok Wijanarko, Hendra Setyawan, Gema Fitriady, Özgür Eken, Z. Kozina, Francesca Latino, Francesco Tafuri, José Vicente García-Jiménez","doi":"10.47197/retos.v58.107683","DOIUrl":"https://doi.org/10.47197/retos.v58.107683","url":null,"abstract":": Injury or wound is damage to the structure or function of the body due to physical force or pressure. This study aims to analyze the risk of injury in young footballers in terms of the Functional Movement Screen (FMS) based on static balance scores. This study used a descriptive observational research method. The subjects were 31 young footballers (age 13.6±0.5 years, BMI 19.5±2.2 kg/m², TD 15.5±10 months). The data collection instrument involved FMS and Stand Stork Test (SST). The data were then analyzed using descriptive statistics. This study found that the FMS score with a high injury risk category was 6.45% in the SST poor category. Meanwhile, FMS scores in the moderate injury risk category were 19.35% in the SST moderate category, 32.25% in the SST poor category, and 3.25% in the SST very poor category. FMS scores in the low injury risk category were 6.45% in the moderate SST category and 32.25% in the poor SST category. The conclusion is that SPSS soccer academy students have a potential risk of injury in the moderate category and a static balance level in the less category. In addition, after reviewing the results of FMS scores based on SST scores, it can be concluded that FMS scores in the moderate category are found in samples with poor category SST, which is 32.25%. This study suggests improving static balance to prevent the risk of sports injuries in young footballers. Similar research in the future is also recommended, especially the one that uses other physical component variables and different research sample characteristics.","PeriodicalId":503742,"journal":{"name":"Retos","volume":" 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141681031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relación entre la calidad del sueño y manifestaciones tempranas del síndrome de sobreentrenamiento físico en futbolistas colombianos.","authors":"Martín Hernán Bonilla Obando, Nelson Fernelly González Cetina, Sandra Patricia Cárdenas Ojeda, Diana Paola López Velandia","doi":"10.47197/retos.v58.101031","DOIUrl":"https://doi.org/10.47197/retos.v58.101031","url":null,"abstract":"Introducción: El síndrome de sobreentrenamiento (SOT) es una condición clínico-deportiva caracterizada por disminución del rendimiento deportivo en el atleta que conlleva a un deterioro en la salud física, psicológica y emocional, la causa probable está relacionada con un desequilibrio entre las cargas de entrenamiento y períodos de recuperación. \u0000Objetivo: Determinar la relación entre la calidad del sueño y las manifestaciones tempranas del síndrome de sobre entrenamiento físico en un equipo profesional colombiano. \u0000Materiales y Métodos: Se realizó un estudio transversal descriptivo en jugadores masculinos del futbol colombiano, con medición de manifestaciones de SOT a través de Cuestionario de la Sociedad Francesa de Medicina del Deporte (SMFS) y evaluación de la calidad del sueño a través del Índice de calidad de sueño de Pittsburgh (PSQI). El análisis estadístico se realizó en el programa software R. \u0000Resultados: Se evaluaron 83 jugadores con edad media de 19 ± 4,2 años, la distribución por categorías fue profesional 30,1%, Sub-20 38,5% y Sub-17 31,3%, la carga de entrenamiento fue de 18, 21, 8 horas semana de entrenamiento respectivamente. Se encontró una mala calidad del sueño del 67.47% y se destaca que el 21% (n=17/83) de los deportistas presentan manifestaciones tempranas del síndrome de SOT. \u0000Conclusiones: Se concluye que alteraciones en la calidad, latencia, duración y eficiencia del patrón sueño en jugadores de futbol profesional masculino de diferentes categorías están relacionado con la presencia de manifestaciones tempranas de SOT.","PeriodicalId":503742,"journal":{"name":"Retos","volume":"13 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141684946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving Soccer Coaching: Considerations of Individual Learning Styles, Intelligence Levels, and Motivation","authors":"Ahmad Chaeroni, Gusril Gusril, Kamal Talib, M. Mashuri, Hendri Susilo, B. Orhan, Karuppasamy Govindasamy, Mottakin Ahmed, Ardo Okilanda","doi":"10.47197/retos.v58.104086","DOIUrl":"https://doi.org/10.47197/retos.v58.104086","url":null,"abstract":"Problem statement. In the increasingly complex and competitive world of soccer, training approaches that do not consider differences in individual learning styles, intelligence levels, and player motivation can be a serious obstacle in producing quality players. The lack of a holistic coaching approach based on differences in learning styles, intelligence levels, and motivation in training soccer players, which has the potential to hinder the development of optimal soccer playing skills among students, is a specific problem in this study. Purpose. The purpose of this study is to develop a holistic and innovative soccer coaching approach, which not only takes into account differences in individual learning styles and intelligence levels, but also increases player motivation. Thus, it is expected to be able to produce high-quality soccer players and improve the mastery of big ball games in physical education in schools. Methods. This type of research is a Quasy experiment with a study population of 140 men, the sample amounted to 44 male students. The instruments used were soccer playing skills test and general intelligence test. The data were analyzed using two-way analysis of variance with the help of Statistical Package for the Social Sciens 23. Results. The results of the study are as follows: (1) in general, the soccer playing skills of students who learn to use the global method are better than the elementary method; (2) there is an interaction between training methods and intelligence levels on the ability to play soccer; (3) at high intelligence levels, the global method is better than training using elementary learning methods to improve students' soccer playing skills; (4) at low intelligence levels, the elementary method is better than training using the global method in improving students' soccer playing skills. Conclusions. It can thus be concluded that improving soccer training cannot be underestimated without seriously considering individual learning styles, intelligence levels, and player motivation. Based on the findings, a holistic approach that integrates learning style preferences, designs training strategies that match intelligence levels, and understands motivational factors, opens the door to more adaptive and successful soccer learning.\u0000Keywords: Methods, Learning, Intelligence, Play, Soccer.","PeriodicalId":503742,"journal":{"name":"Retos","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141685080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estilos de vida e índice de masa corporal en estudiantes universitarios del Callao, Perú (Lifestyles and body mass index in university students from Callao, Peru)","authors":"Roberto Carlos Dávila-Morán, Eucaris del Carmen Agüero Corzo","doi":"10.47197/retos.v57.107265","DOIUrl":"https://doi.org/10.47197/retos.v57.107265","url":null,"abstract":"El objetivo de este estudio fue determinar la relación entre estilos de vida e índice de masa corporal entre estudiantes de la Universidad Nacional del Callao, Perú, en el año 2023. El estudio se desarrolló con base en un enfoque cuantitativo, un diseño no experimental correlacional, cuya muestra fue de 382 estudiantes de la Universidad del Callao, Escuela Profesional de Educación Física, de los ciclos académicos I al VII. Los instrumentos utilizados fueron el cuestionario de estilo de vida y la medición antropométrica de talla y peso corporal. Las características señalan en la variable estilos de vida entre los estudiantes un 23,8% en promedio, un 30,1% pobre y un 23,8% excelente. Mientras que en el índice de masa corporal prevaleció un nivel mayor en sobrepeso, obesidad grado I y obesidad grado II en mujeres con 23,6%, 2,1% y 1,8% respectivamente. Es necesario encontrar una relación directa significativa entre el estilo de vida y el índice de masa corporal en los estudiantes analizados. Se concluye que la implementación de programas específicos y la promoción de la educación siguen surgiendo en estos aspectos como medidas fundamentales para promover estilos de vida saludables en el nivel universitario. Estas acciones podrían traducirse en una mejora general del bienestar físico y mental de los estudiantes universitarios, fortaleciendo así su calidad de vida.\u0000Palabras clave: Estilo de vida, índice de masa corporal, salud, nutrición, Modelo Pender de Promoción de la Salud.\u0000Abstract. El objetivo de este estudio fue determinar la relación entre estilos de vida e índice de masa corporal en estudiantes de la Universidad Nacional del Callao, Perú, en el año 2023. El estudio se desarrolló bajo el enfoque cuantitativo, diseño correlacional no experimental, cuya muestra fue 382 estudiantes de la Universidad del Callao, Escuela Profesional de Educación Física, de los ciclos académicos I al VII. Los instrumentos utilizados fueron el cuestionario de estilo de vida y la medición antropométrica de talla y peso corporal. Los hallazgos indican un promedio de 23,8% en la variable estilo de vida estudiantil, 30,1% pobre y 23,8% excelente. En cuanto al índice de masa corporal, prevaleció en las mujeres un mayor nivel de sobrepeso, obesidad grado I y obesidad grado II con 23,6%, 2,1% y 1,8% respectivamente. Se precisa la relación directa poco significativa entre estilo de vida e índice de masa corporal en los estudiantes analizados. Se concluye que la implementación de programas específicos y la promoción de la educación continua en estos aspectos emergen como medidas fundamentales para promover estilos de vida saludables en el ámbito universitario. Estas acciones podrían traducirse en una mejora general del bienestar físico y mental de los estudiantes universitarios, fortaleciendo así su calidad de vida.\u0000Keywords: Estilo de vida, índice de masa corporal, salud, nutrición, Modelo Pender de Promoción de la Salud.","PeriodicalId":503742,"journal":{"name":"Retos","volume":"7 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141684962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of different combinations of plyometric training on the physical performances: experimental study on student-athletes","authors":"David Agus Prianto, O. Wiriawan, Hari Setijono, H. Muhammad, Shidqi Hamdi Pratama Putera, A. Sholikhah, Muhammad Muhyi, Muhamad Syamsul Taufik, S. P. Purwoto","doi":"10.47197/retos.v58.105225","DOIUrl":"https://doi.org/10.47197/retos.v58.105225","url":null,"abstract":"Plyometric training (PT) can be performed in a variety type of exercises involving the stretch-shortening cycle (SSC) in lower limbs. Numerous research has examined the impact of plyometric exercise on various sport performances in various populations over the past few decades. The objective of this research is to analyse the effect of combined plyometric exercises on strength, speed, and power in student-athletes. Thirty-three student athletes were classified into three experimental groups and were given six weeks of respected training specific to their group: CS (continue board jump + skater hops), TI (tuck jump + ins and outs), and ST (standard conventional training). Pretest and posttest measures on strength, power, and speed were obtained. Data analysis was done using Wilcoxon signed rank and Kruskall-Wallis test to examine group differences. Follow up test was done using Mann-Whitney whenever a statistically significant different was identified between groups. It was found that strength increased significantly after PT was done for six weeks (p=0.000), with CS showed highest improvement. Between-group difference was only found in strength which were between CS-TI (p=0.000) and ST-TI (p=0.020) pairs. Based on these findings, it was concluded that combined plyometric trainings done in six weeks were able to improve strength, power, and speed in student-athletes.\u0000Keywords: Physical performance; plyometric training; power; speed; strength; stretch-shortening cycle\u0000 ","PeriodicalId":503742,"journal":{"name":"Retos","volume":"348 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141686778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Time efficiency and match optimization in scheduling Pencak Silat matches: a case study of the Sleman Regency Student Pencak Silat Championship in 2023","authors":"Aditya Ambarwati, Aldilah Jabbar Aga, S. Abusini, Vira Hari Krisnawati, Trisnar Adi Prabowo","doi":"10.47197/retos.v58.107555","DOIUrl":"https://doi.org/10.47197/retos.v58.107555","url":null,"abstract":"The issue of this research is that many pencak silat matches in Indonesia still use manual calculations in several dis-tricts/regencys, then the calculation data is inputted into the system. This will take a lot of time, so the pencak silat match schedule spends a lot of time. The data used is the number of parties at the Sleman Regency Student Pencak Silat Championship in 2023. This research aims to find calculations to maximize the number of parties/matches/match numbers per day in a martial arts match. The method that can be used is the Preemptive Multiple Bounded Knapsack Problem (PMBKP). PMBKP involves distributing the quanti-ty of different types of items to a group of knapsacks with their respective priorities and capacity limits. The PMBKP results obtained in the 2023 Sleman District Pencak Silat Championship problem using the Branch and Bound algorithm are 175 parties on the first day, 133 parties on the second day, 128 parties on the third day, 127 parties on the fourth day, and 72 parties on the fifth day. These results can be said to be effective if applied to pencak silat matches that aim to nurture achievements, such as introductions and district/regency level matches.\u0000Keywords: Pencak Silat, Competition, Sports Schedule","PeriodicalId":503742,"journal":{"name":"Retos","volume":"30 30","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141685312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adaptaciones metodológicas y su articulación con el rendimiento deportivo en estudiantes de una institución educativa peruana (Methodological Adaptations and Their Articulation with Sports Performance in Students of a Peruvian Educational Institution)","authors":"Ángel Chávez Oviedo, Elio Javier Chávez Oviedo, Enaidy Reynosa Navarro","doi":"10.47197/retos.v57.103463","DOIUrl":"https://doi.org/10.47197/retos.v57.103463","url":null,"abstract":"Introducción: La pandemia de COVID-19 introdujo importantes retos en el deporte, requiriendo adaptaciones metodológicas para mantener el entrenamiento deportivo bajo las restricciones del confinamiento. Objetivo: Este estudio se propuso evaluar el impacto de las sesiones de entrenamiento adaptadas, inicialmente virtuales y luego presenciales, en el rendimiento deportivo de jóvenes atletas, con el objetivo de optimizar sus habilidades motrices y condición física frente a las adversidades. Metodología: Se adoptó un paradigma positivista de enfoque cuantitativo y diseño no experimental longitudinal, con 30 jugadoras de baloncesto de entre 13 y 17 años de una escuela en Perú. Una guía de observación validada permitió evaluar el progreso en habilidades técnicas y físicas en tres fases: diagnóstico, adquisición y ejecución de habilidades, destacando elementos como el dribling y la recepción y el pase. Resultados: Las mejoras en el rendimiento deportivo de las participantes fueron significativas a lo largo del estudio. Desde el confinamiento hasta el retorno a las sesiones presenciales, se notó un aumento progresivo en las capacidades evaluadas, evidenciando la eficacia de la adaptación metodológica. Conclusión: La mezcla de entrenamientos virtuales y presenciales probó ser una estrategia efectiva en la mejora del rendimiento deportivo bajo condiciones desafiantes. Este hallazgo subraya la capacidad de adaptación y resiliencia de las atletas jóvenes, además de enfatizar la importancia de la innovación en las prácticas de entrenamiento deportivo ante escenarios complejos como el generado por la COVID-19.\u0000Palabras clave: Rendimiento deportivo; metodología; entrenamiento remoto; habilidades motrices deportivas; Covid-19.\u0000Abstract. Introduction: The COVID-19 pandemic introduced significant challenges in sports, necessitating methodological adaptations to maintain sports training under the restrictions of confinement. Objective: This study aimed to evaluate the impact of adapted training sessions, initially virtual and later in-person, on the sports performance of young athletes, with the goal of optimizing their motor skills and physical condition in the face of adversities. Methodology: A positivist paradigm with a quantitative focus and a non-experimental longitudinal design was adopted, involving 30 female basketball players aged between 13 and 17 from a school in Peru. A validated observation guide was used to assess progress in technical and physical skills across three phases: diagnosis, acquisition, and execution of skills, highlighting elements such as dribbling, and the reception and passing. Results: Improvements in the sports performance of the participants were significant throughout the study. From the confinement to the return to in-person sessions, a progressive increase in the evaluated capacities was observed, demonstrating the effectiveness of the methodological adaptation. Conclusion: The combination of virtual and in-person training prov","PeriodicalId":503742,"journal":{"name":"Retos","volume":"16 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141704136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}