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El analisis de la carga externa ( external load, eTL ) proporciona informacion al profesor de Educacion Fisica de como planifica la ensenanza deportiva de su grupo-clase, pudiendo utilizarla como feedback. Por ello, el objetivo del estudio fue analizar la eTL de las tareas disenadas por los profesores en fase de pre-servicio para la ensenanza del baloncesto en el contexto escolar en funcion de las fases de juego. Se categorizaron 283 tareas disenadas por seis profesores en fase de pre-servicio (formacion) a traves del Sistema Integral para el Analisis de las Tareas de Entrenamiento. La cuantificacion de eTL de las tareas se obtuvo por medio de seis variables: grado de oposicion, densidad de la tarea, porcentaje de ejecutantes simultaneos, carga competitiva, espacio de juego e implicacion cognitiva. Se realizo un analisis descriptivo por medio de las tablas de contingencia e inferencial usando las pruebas estadisticas H de Kruskal-Wallis y U de Mann-Whitney . El tamano del efecto se calculo mediante la d de Cohen. Los resultados indican diferencias significativas en la eTL ( p =.000; d =1.898) y la eTL * Tiempo ( p =.000; d =1.558) en funcion de las fases de juego. Las tareas disenadas para la fase de ataque (fundamentalmente ejercicios) presentan una eTL media-baja, mientras que las tareas disenadas para las fases de defensa y mixta presentan una eTL media-alta. Predominan las tareas disenadas para la fase de ataque, seguida de la fase mixta. El uso de los juegos provoca mayor eTL y favorece la condicion fisica de los aprendices. Abstract. The analysis of external load (eTL) provides Physical Education teachers with information about how they plan sport teaching within their classes, which they can use as a feedback. Thus, the aim of this study was to analyze the eTL of the tasks designed by pre-service teachers for the teaching of school basketball, depending on the phases of game. A total of 283 tasks designed by six pre-service teachers were categorized through the Integral System for Training Tasks Analysis. The quantification of the eTL of the tasks was obtained through six variables: degree of opposition, density of the task, percentage of simultaneous performers, competitive load, game area, and cognitive involvement. A descriptive analysis was performed using contingency tables and an inferential analysis using Kruskal-Wallis H and Mann-Whitney U statistical tests, establishing the effect size through Cohen’s d . The results indicate significant differences in the eTL ( p <.001; d =1.898) and the eTL*Time ( p <.001; d =1.558) depending on the phases of game. The tasks designed for the attack phase (mostly exercises) have a medium-low eTL, while the tasks designed for the defense and mixed phases have a medium-high eTL. The tasks designed for the attack phase predominate, followed by those for the mixed phase. The use of games causes greater eTL and fosters students’ physical condition.

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Estudio de la carga externa de las tareas de baloncesto en función de las fases de juego (Study of external load in basketball tasks based on game phases)