Comparative analysis of load profile between small-sided games and official matches in youth soccer players

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Comparative analysis of load profile between small-sided games and official matches in youth soccer players

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Title: Comparative analysis of load profile between small-sided games and official matches in youth soccer players
Author: Gómez Carmona, Carlos David; Martín Gamonales, José; Pino Ortega, José; Ibáñez Godoy, Sergio José
Abstract: Los propósitos del presente estudio son: a) Caracterizar la carga externa (eTL) e interna (iTL) de los partidos oficiales y de los partidos de flanco pequeño (SSG) en relación con su objetivo, b) comparar las exigencias entre las SSG y c) analizar los requisitos de las SSG en relación con los partidos oficiales durante un período de competición de un mes. Se registraron 20 jugadores de fútbol de nivel nacional menores de 18 años utilizando dispositivos inerciales WIMUTM (RealTrack Systems, Almería, España) durante cuatro partidos oficiales y 12 sesiones de entrenamiento en los que se realizaron cuatro SSG con objetivos diferentes: (SSG1) manteniendo el balón; (SSG2) manteniendo el balón y progresando; (SSG3) manteniendo el balón, progresando y terminando en mini-goles; y (SSG4) manteniendo el balón, progresando y terminando en un gol oficial con un portero. El análisis estadístico incluyó la H de Kruskall-Wallis y la U de Mann-Whitney con el tamaño del efecto d de Cohen. Los SSG presentaron movimientos de intensidad de caminata y trote (0,7-7 a 7-14 km/h), con un 5 a 8 %HIA (actividad de alta intensidad, >16 km/h), donde predominaron las aceleraciones, desaceleraciones e impactos de baja intensidad (1-2,5 m/s2; 5-7 G), y el %HRMAX (porcentaje de frecuencia cardíaca máxima) se situó entre el 70-90%. Sólo el SSG4 presentó demandas similares a la competencia, encontrando diferencias entre los SSG (p < 0,05; d = 1,40 - 0,36). En conclusión, el objetivo de las SSGs influyó directamente en las demandas de los jugadores en las sesiones de entrenamiento. Por esta razón, es importante monitorear las demandas para diseñar sesiones de entrenamiento específicasThe purposes of the present study are: (a) to characterize the external (eTL) and internal load (iTL) of official matches and small-sided games (SSGs) in relation to their objective, (b) to compare demands between SSG, and (c) to analyze the SSG requirements in relation to official matches during a one-month competition period. Twenty under-18 national-level soccer players were recorded using WIMUTM inertial devices (RealTrack Systems, Almeria, Spain) during four official matches and 12 training sessions where four SSGs with different objectives were performed: (SSG1) keeping the ball; (SSG2) keeping the ball and progressing; (SSG3) keeping the ball, progressing and ending in mini-goals; and (SSG4) keeping the ball, progressing and ending in an official goal with a goalkeeper. Statistical analysis included Kruskall-Wallis’ H and Mann-Whitney’s U with Cohen’s d effect size. The SSGs presented walking and jogging intensity movements (0.7–7 to 7–14 km/h), with a 5-to-8 %HIA (high intensity activity, >16 km/h), where low intensity accelerations, decelerations and impacts were predominant (1–2.5 m/s2; 5–7 G), and %HRMAX (maximum heart rate percentage) was between 70–90%. Only SSG4 presented similar demands to competition, finding differences between SSGs (p < 0.05; d = 1.40 − 0.36). In conclusion, the objective of the SSGs directly influenced the demands on the players in training sessions. For this reason, it is important to monitor demands for designing specific training sessions.
URI: http://hdl.handle.net/10662/10607
Date: 2018


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