标题：Utilización de la limitación de contactos en el entrenamiento en fútbol: ¿afecta a las demandas físicas y fisiológicas? [Use of limiting the number of touches of the ball in soccer training: Does it affect the physical and physiological demands?].
期刊名称：RICYDE. Revista Internacional de Ciencias del Deporte. doi:10.5232/ricyde
印刷版ISSN：1885-3137
出版年度：2013
卷号：9
期号：33
页码：208-221
语种：Spanish
出版社：Ramón Cantó Alcaraz (Publisher)
摘要：El objetivo de esta investigación fue examinar la influencia del número de contactos permitidos por posesión individual en las demandas físicas y fisiológicas durante situaciones de juegos reducidos (JR) de 6 vs. 6 + 2 comodines donde el objetivo fue mantener la posesión de balón, alterándose únicamente el número de contactos autorizados por posesión (1 contacto, 2 contactos y contactos libres). Catorce jugadores semiprofesionales de fútbol (edad: 23.1 ± 4.5 años; altura: 176.9 ± 3.3 cm; peso: 73.4 ± 5.2 kg) fueron monitorizados con dispositivos GPS a 10 Hz y bandas de frecuencia cardiaca. Se registraron las siguientes variables: frecuencia cardiaca media y máxima, distancia total recorrida, distancia recorrida en diferentes rangos de velocidad, player load, velocidad máxima, ratio trabajo:descanso y número de aceleraciones. Los resultados mostraron que la variable número de contactos afecta a las demandas fisiológicas y físicas. Específicamente, mayores valores cardiacos fueron observados durante los JR realizados a dos contactos máximo con respecto a contactos libres, mientras que un mayor número de aceleraciones de intensidad baja fueron estimadas para el formato de 2 contactos en comparación al contacto libre. No se observaron diferencias significativas para el resto de variables estudiadas. Estos resultados proporcionan información a los entrenadores para entender cómo la modificación de diferentes variables en los JR afecta a las demandas físicas y fisiológicas de los jugadores y, por tanto, atender a ellas para modular su intensidad en función de los objetivos de entrenamiento. Abstract The aim of this investigation was to examine the influence of the number of contacts allowed by individual possession in the physical and physiological demands during situations of small-sided games (SSG) 6 vs. 6 + 2 floaters where the aim was to support the ball possession, there being altered only the number of authorized contacts by possession (1 contact, 2 contacts and free contacts). Fourteen semiprofessional soccer players (age: 23.1 ± 4.5 years; height: 176.9 ± 3.3 cm; I weight: 73.4 ± 5.2 kg) were monitored by GPS devices (10 Hz) and bands of heart rate. The following variables were registered: heart rate average and maximum heart rate, distance, covered distance at different ranges of speed, player load, maximum speed, ratio work: rest and number of accelerations. The results showed that variable number of contacts concerns the physiological and physical demands. Specifically, major heart rate responses were observed during the SSG realized to two contacts maximum with regard to free contacts, whereas a major number of low intensity accelerations were estimated for the format of two contacts in comparison to the free contact. Significant differences were not observed for the rest of studied variables. These results provide information to the coaches to understand how the modification of different variables in the SSG concerns the physical and physiological demands of the players and, therefore, to attend to them to modulate his intensity depending on the aims of training. http://dx.doi.org/10.5232/ricyde2013.03301 --------------------------------------------------------------------- Referencias/references Bangsbo, J.; Iaia, F. M., & Krustrup, P. (2008). The Yo-Yo Intermittent Recovery Test: A Useful Tool for Evaluation of Physical Performance in Intermittent Sports. 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关键词：fútbol;juegos reducidos;análisis de movimiento;dispositivos GPS;número de contactos al balón;soccer;small-sided games;time-motion;GPS device;heart rate;number of ball contacts.
