Análisisdel Tiempo de Juego Efectivo y de la Posesión de Balón en el Fútbol Femenino Profesional / Análise do Tempo Efetivo de Jogo e Posse de Bola no Futebol Profissional Feminine / Analysis of Effective Playing Time and Possession of the Ball in Professional Female Footbal

Elobjetivo del presente estudio observacional fue describir el tiempo efectivo dejuego en el fútbol femenino profesional a partir de cómo se distribuyó la frecuencia y duración de la posesión de balón. Se analizaron ocho partidos de la Champions League femenina de la temporada 2021-22. El sistema de codificación estuvo compuesto por cuatro categorías: posesión de balón (dentro del balón en juego, BJ) y balón parado (BP), tanto del equipo de referencia como del oponente. Se implementaron un análisis descriptivo, una comparación de medias para las variables independientes (parte (primeray segunda) y lugar (casa y fuera) del partido) y un análisis de secuencialidad. Los resultados fueron que: 1) el BJ tuvo una mayor duración que el BP, en ambas partes y lugares; 2) el número de posesiones por cada BJ decreció a medida que aumentó el númerode posesiones consecutivas (desde 1 a 5 o más); 3) no existieron diferencias en la duración promedio de las posesiones, indistintamente a las partes y el lugar; y, 4) existióvariabilidad en las transiciones entre los BJ y BP con diferente duración. Estos hallazgos podrían ayudar a los cuerpos técnicos y, especialmente, a las/os preparadoras/es en el diseño de tareas que repliquen las dinámicas de juego en el fútbol femenino de élite.(AU)

This observational study aimed to describe the effective playing time based on how the frequency and duration of ball possession were distributed in professional women's football. Eight matches of the Women's Champions League of the 2021-22 season were analyzed. The coding system was made up of four categories: possession of the ball (within the ball in play, BJ) and set piece (BP), both the reference team and the opponent. A descriptive analysis, a comparison of means for the independent variables (half (first and second) and location (home and away) of the match), and a sequential analysis were implemented. The results were that: 1) the BJ had a longer duration than the BP, in both halves and location; 2) the number of possessions per BJ decreased as more consecutive possessions were accumulated (from 1 to 5 or more); 3) there were no differences in the average duration of the possessions, regardless of the havesand the location; and, 4) there was variability in the transitions between the BJ andBP withdifferent duration. These findings could help the coaching staff and, especially, coaches in the design of tasks that replicate the game dynamics in elite women's football.(AU)

O objetivo deste estudo observacional foi descrever o tempo efetivo de jogo a partir da distribuição da frequência e duração da posse de bola no futebol feminino profissional. Foram analisadas oito partidas da Liga dos Campeões Feminina da temporada 2021-22. O sistema de codificação foi composto por quatro categorias: posse de bola (dentro da bola em jogo, BJ) e bola parada (BP), tanto da equipa de referência quanto do adversário. Foram implementadas uma análise descritiva, uma comparação de médias para as variáveis independentes (primeira e segunda parte) e localização (casa e fora) da partida) e uma análise sequencial. Os resultados foram que: 1) o BJ teve uma duração maior que o BP, em ambos os trechos e localização; 2) o número de posses por BJ diminuiu à medida que mais posses consecutivas foram acumuladas (de 1 para 5 ou mais); 3) não houve diferenças na duração média das posses, independentemente das partes e do localização; e, 4) houve variabilidade nas transições entre o BJ e oBPcom diferentes durações. Esses achados podem auxiliar as equipes técnicas e, principalmente, os treinadores no desenho de tarefas que reproduzam a dinâmica do jogo no futebol feminino de elite.(AU)

Comparison of the External Load in Training Sessions and Official Matches in Female Football: A Case Report.

The objective of this study was to compare the external load of training sessions using as a reference an official competition match in women's football in order to find if the training sessions replicate the competition demands. Twenty-two semi-professional football players were analyzed during 17 weeks in the first phase of the competitive period of the 2020-2021 season of Spanish women's football. In addition to the competition (Official Matches, OM), four types of sessions were distinguished: strength or intensity (INT), endurance or extensity (EXT), velocity (VEL), and activation or pre-competitive (PREOM). The external load variables recorded were total distance (TD), high-speed running (HSR), sprint (Sprint), accelerations (ACC2), decelerations (DEC2), player load (PL), distance covered per minute (TDmin), high metabolic load distance (HMLD), and total impacts. The main results were that the external load demanded was different according to the type of session, being, in all cases, much lower than OM. The variables referring to the neuromuscular demands (ACC2 and DEC2) were higher in the INT sessions, the TD variable in the EXT sessions and the velocity variables (HSR and Sprint) in the VEL sessions. We can conclude that there was an alternating horizontal distribution of training loads within the competitive micro-cycle in women's football, although the order was not the usual one for tactical periodization.

Evaluating Physical and Tactical Performance and Their Connection during Female Soccer Matches Using Global Positioning Systems.

The objective of the present study was to evaluate the tactical and physical performance during official matches of a women's soccer league and to correlate both dimensions in periods of 15 min. To do this, eight official matches of a semi-professional soccer team belonging to the Women's Second Division of Spain (Reto Iberdrola) were analysed during the 2020-2021 season. The variables recorded were classified into two dimensions: tactical variables (i.e., Width, Length, Height and Surface Area) and physical variables (i.e., Total Distance Covered (TD), Total Distance Covered in High-Speed Running (HSR) and Total Distance Covered in Sprint). The main results were: (1) there were no differences between the periods in any of the tactical dimension variables; (2) in the physical dimension, a significant decrease in TD and HSR was described at the end of the match (period 60-75); and (3) some positive correlations were found among some variables of the tactical and physical dimension at the beginning and at the end of the match (periods 0-15, 60-75 and 75-90). The findings of the study suggest that connecting the tactical and physical dimension in the interpretation of team performance would allow for a better understanding of player and team performance and during competition.